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                  <text>PUBLICACIONES BIOLOGICAS
INSTITUTO DE INVESTIGACIONES CIENTIFICAS

Diciembre 10, 1973

Volumen 1, Número 3

SUPPRESSIONS AND OTHER TAXONOMIC CHANGES IN THE
PROTOZOAN SUBPHYLUM OPALINIDA

Paul, R. Earl

Capilla Alfonsina
Bihlioteca Universitari,z

UNIVERSIDAD AUTONOMA DE NUEVO LEON
Instituto de Investigaciones Científicas
y
Facultad de Ciencias Biológicas
Monterrey, N. L., México

�fON()O

UN \IERSITAR IC

PUBLICACIONES BIOLOGICAS
INSTITUTO DE INVESTIGACIONES CIENTIFICAS

Las Publicaciones (Biológicas, etc.) del Instituto de Investigaciones Científicas de la Universidad Autónoma de Nuevo León, son series destinadas principalmente a presentar los resultados de investigaciones originales realizadas en sus
dependencias. Los trabajos se imprimen se,,aún se aceptan, uno o varios en cada
número, sin periodiridad fija.

Se aceptan suscripciones institucionales por una o varias series. No se aceptan suscripciones individuales.

Las personas interesadas pueden adquirir números sueltos remitiendo el pago
con la orden. Las Pubücaciones pueden ser adquiridas en intercambio.
Los autores afiliados a la Universidad Autónoma de Nuevo León ordenarán
sus sobretiros en la requisición que se les proporcionará. Otros autores recibirán
100 sobretiros por artículo, pudiendo ordenar más al costo. En ambos casos, el
pedido se hará al entregar las pruebas corregidas.
Al citar esta serie, se solicita atentamente a los autores usar las siguientes
abreviaturas:

Publ. Biol. /nst. /nv. Cient., UANL, Méx.

Precio del ejemplar: $ 3.00.

Editor:

BióL M. Se. Salvador Contreras-BaLleras.

Volumen 1, Número 3

Diciembre 10, 1973

SUPPRESSIONS AND OTHER T AXONOMIC CHANGES IN THE
PROTOZOAN SUBPHYLUM OPALINIDA

Paul R. Earl
SUMMARY. On the grounds of inadequate description, 88 spp. of
Opalinidoe are suppressed: Bezzenbergeria gen. n. is established
for B. lancieolala comb. n., and minor adjustments are made: With
an aim towards moking species descriptions more objetive, frequency
and relative cumulative frequency of áimensions are considered
taxonomically useful, since if nutrition and sexual status, and/ or
environment are the sorne, then the inherited frequency distributions
of d mensions are !he sorne.
RESUMEN. Sobre ia base de descripción inadecuada, 88 spp. de
Opalinidae se suprimen. Bezzenbergeria gen. n: se establece para
B. lanceolata comb. n., y se hacen ajustes menores; Con la finalidad
de hace r las descripciones de especies más objetivas, se consideran útiles taxonómicamente las distribuciones de frecuencias y de
frecuencias acumulativas relativas, dado que si la nutrición y
estado sexual, y/ o el ambiente son las mismos, entonces las distribuciones de frecuencias de las dimensiones heredadas son las mismas.

The opalinids of a given population which should be best chara~terized are those which are most frequently encountered under a particular set of conditions, the modal cells. The environmental conditions are:
host species (larval or adult). locality and weather. Commonly for temDerate-zone anurarn:; rtatewent of the time of year suffices since most
hosts are photoperiodical1y controlled. Giving the date o
·s an insufficient indication of the brc~in~ condition of many de
d toads
as many such hosts are rrnidl · duced to breed f
Regardless sorne indicati-:m hes
~-\,-,Ñ
n the befor
r sta~

'_____ _

Dirección del autor: Dcpar
York, U.S.A. y Fa cult:id d
F echa ele R ecepción :

a

·.~

, New

�26

Publ. Inst. Inv. Cient., UANL, Méx.

Vol. 1

No. 3

tus of the entocommensal regarding its sexual activity. The d€gl'ee of
host specificity which opalinids possess is unknown, and it is suspected
to be Iow. The neoessity of noting locality is particularly obvious as nothing is currently known about the zoogeographic spread of opaJinids
below the genus level. In most descriptions, indications that the population is in a presexual, sexual or postsexual phase are scant, though
sexuaJity affects the distributions of sizes and shapes. Opalina spp. can
lengthen, as an example, sorne 7 times while width increases possibly 4
times, inclusive of lengthening of the posterior {X)rtion of the c:ell. The
Orxfl,imi does not double and divide in the manner that the generalized or
classic cell does. Posterior lengthening was noted by Wessenberg (1961) ,
and the growth pattern of Opalina spp. well detailed and diagramed by
Kaczanowski (1973). Though conjectural, it might be thait Opalina spp.
can develop a cytokinetic notch and/ or constriction in any plane paraBel to the maximum depth, which would result in daughter cells of different shapes. The other genera ( Hegneriella, Zelleriell,a, Cepedea, Protoopalina and Bezzenbergeria gen. n.) do not seem to present such difficulties as Opalina, yet they are insufficiently studied and perhaps Cepedea acts in a roughly comparable way. At any rate, both the established
and the suspected aspects of growth and differentiation bear on species
descriptions, especially since too little is known about morphogenesis,
inclusive of sexuality, e. g., sexual stages are well-documented in only

27

tions with simple tools and systems, which are universally available. Studies using advanced instrumentation and computer calculation may be
often outside the taxooomists's reach and may also indicate pseudosophistication since the simpJ.est things have not yet been done well. Studies carried out with instrumentation beyond the average facility should
be clearly directed to SO!lle special aspect of cell study.
Aside from cell length and width, other parameters, such as the
length of the falx, are available as taxonomic characters. In the genera
Protoopalina, Zelleriella and Bezzenbergeria, cell and nuclear lengths
and widths, apex to center of the anterior nuc.leus,. anterior to posterior
midnuclear distance and other measures are available, including the angles of sorne organelles. Suffice it to say here that the evaluation of characters is far from finalized.
Sixty percent of the population in Table I, an undescribed Opalina
sp., has cell length between 247 and 299,¡i(, and 71% width from 74 to
122_,,I(, i. e., most cells are 247-299 x 74-122~. Apparently cytokinesis
éan occur once a cell approximates 264.,.i(. Additionally, transverse fission was observed in a cell 269 x 80)&lt; . Also, the inference can be made
that 40% of maximum possible increase in length might be attained in
11 % of maximum time in the cell cycle. This inference may not be sound,
but gen~ ally few cells are found in the smaller ranges, because growth
is then very rapid, and few remain in the larger ranges as the others
have pr~viouslv exited from th&lt;:: cell cycle. \Vhile interesting facets of
the data can be disccrred in frequency anr1 percent (relative) cumulative freauency distributions which are masked by the misapolication of
the statistics of normal distribution, concern here is taxonomic. thus the
range 161-333)C. and particularly the mode defined as ca. 247-299.,A are
characters. Given northeastern adult Green Frogs in August, then an
Opalina sp. population with similar ranges and modes is likely to belong
k&gt; the same species as in Table I for if nutrition and sexual status are the
same, th~n the inherited frequency distribution should be simil~r. Obviously, within limits. the greater the number of characters available, the
easier the species discrimination.

Opalina.

The numerous species suppressions given here are partly the m:;ult
of the inadequacy of the type method, aJbeit this conclusion is colored
by opinion.
Populations can be compared using the statistics of normal distribution even though it is highly probable that this is a misapplication.
Common statistics are still better than nothing. The frequency and the
percent cumulative frequency distributions of parameters (variables)
are more helpful than the arithmetic mean and the like. Percent cumulative frenquency can be worked out by hand-sorting index cards and
tabulating with pencil and paper. For instance, a statement such as: 40%
of the population fell within a certain range is meaningful as it allows
comparisons with other populations, whereas t-testing. Chi-square testi_ng,. etc., of means may be spurious as these variables can scarcely be
d1stributed normally. Although Kolmogorov-Smirnov testing may be needed to precisely compare distributions tabulated as advised, comparioon
by eye is more than likely sufficient.
The hand method of sorting and tabulating frequency distributions
(see ~al;&gt;le I) is adequat~ for ro"!Jtine te:'onomy, and the key to successful
dcscr1pt1ons may be ob:¡ective 1llustration. Most ooalinids are undiscovered. The reasonable goal is to produce reasonably adequate d~ crip-

Earl: On Opalinida

..

Incidentally, the data in Table I corroborates late posterior lengt henin&lt;; as characteristic of Opalina, aild, from Table Il. aoparently
d:&gt;es not a pply to Protoor;alina as growth of its cell length (LC) and
width (WC) may be concurrent. More parameters are obvious for tñe
latter genus: apex to the middle of the anterior nucleus (AN) and the
internuclear rlisVmce from center to center (NN) are added to anterior
nuclear length (LN) rinn wirlth (WN), which 6 measures ar aJso available in the case of Zelleriella, and even Bezrerwerqeria. Since nuclei
are isoJPorphic. only the anterior one need be measured (see Earl, 1969
on P. mitotica).
0

�Vol 1

Publ. IMt. Inv. Gient., UANL, Méx.

28

TABLA I
The frequency (f) and % cumulative f r e q u en e y ( % cf) distril:mtions of length and width of an undescribed ()Jxuina sp. of adult
Rana cl,amitans caught in August, 19'.73 at Saratoga Springs, N. Y. The
ranges are 161-333 x 50-170.Jt 10% increments are 17.2 and 12.0)&lt; .
Sample size is 100.

Microns

f

% et

Microns

161.0
178.2
195.4
212.6
229.8
247.0
264.2
281.4
298.6
315.8

3
1
1
6

3
4
5
11
22
44
65
82
91
100

50.0
62.0
74.0
86.0
98.0

178.1
195.3
212.5
229.7
246.9
264.1
281.3
298.5
315.7
333.0

11

22
21
17
9
9

no.o

122.0
134.0
146.0
158.0

- 61.9
- 73.9
- 85.9
- 97.9
-109.9
-121.9
-133.9
-145.9
-157.9
-170.0

f

% cf

1
5
19
15
21
16
8
6
6
3

1
6
25
40
61
77
85
91
97
100

TABLA II
The % e~ di s tri bu ti o n s of LC, wc, LN, WN, AN and NN
of ProtO&lt;Ypalina sp. from Dharwar, India (H &amp; E slides through the
courtesy of J. C. Uttangi) with 10% increments in the 1st column, i. e ..
for LC 0-10% can also be stated 117.0 - 128.5.J&lt;. (N = 113).
LC

wc

LN

WN

117-233

19-62

11-35

8-16

5.3
8.8
17.7
35.4
55.8
71.7
85.0
92.9
99.1
100.0

2.7
7.1
15.9
36.3
60.2
78.8
86.7
92.9
99.1
100.0

0.9
4.4
21.2
72.6
88.5
97.3
98.2
98.2
99.1
100.0

9.7
34.5
34.5
65.5
84.1
91.2
98.2
98 2
99.1
100.0

Las fotografías se presentarán en impresiones brillantes, contrastadas, no ma·
yores de 21 x 30 cm.; los fotomontajes deberán realizarlos los autores. Los dibujos
deberán ser a tinta negra, claros, sin medios tonos.
La numeración de cada figura en fotomontajes y dibujos combinados se hará
d:bujada, en la parte inferior izquierda. No se aceptarán signos mecanografiados
dentro &lt;lel material ilustrativo. Los pies de grabado serán a máquina, en hoja
separada, man~aida con el número de la figura:, que será continuo en una sola serie,
para cada artículo.

34-73

0-78

Para citar, se usará el estilo por autor, año y páginas. La lista de referencias
incluirá sólo el material citado en el texto, en orden alfabético convencional, y
se designará LITERATURA CITADA.

0.9
0.9
1 .8
2.7
4.4
23.0
43.4
60.0
903
100.0

Un resumen que contenga la esencia de la contribución del artículo al co·
nocimiento deberá acompañar a cada manuscrito. La extensión será menor del
3 % de la del artículo. Dicho resumen será enviado para su publicación a las
revistas del género que el autor señale, además de kis que usan las Publi.ca,ewnes
(Biological Abstracts, Chemical Ahstracts, etc.).

rncrease
O- 10

Se recomienda consultar la literatura apropiada sobre el estilo a seguir en
los artículos, p. ej. Publ. Bwl.: Style Manual for Biological Journals (Segunda Ed.)
(AlBS 2000 P. St. NW Washington 6, D.C.), para los aspectos técnicos de la rec!acción. El título, la autoría, la dirección, etc., deberán ir en una página. Cada tabla
d~berá pre rnlarse en pág na separada, en su forma más simple, evitando el rayado
de cuadrícula trnto como sea posible y se diseñará para su presentación en la
anchura de las publicaciones ( 12.5 eros.). El contenido de las tablas no duplicará innecesariamente el del texto.

NN

- -

11- 20
21- 30
31- 40
41- 50
51- 60
61- 70
71- 80
81- 90
91-100

No habrá límites a la extensión de los artículos que se remitan, ni a la especialidad. Su publicación se hará aproximadamente en orden de recepción.

AN

Range

% (in_.A )

Los manuscritos remitidos para publicación deben enviarse en papel bond.
Todo el material del escrito, incluso el texto, referencias, tablas, cabezas, pies de
grabado y notas de pie de página, deben presentarse mecanografiadas a doble
espacio. Los títulos deben ser breves, indicando claramente la especialidad del
contenido. Los márgenes serán de 2 cm.

Width

Length

-

A LOS AUTORES:

4.4
30.1
45.1
78.8
92.9
93.8
96.5
97.3
98.2
100.0

Las pruebas serán corregidas por el autor, a la brevedad posible, y deberán
ser regresadas al Editor, por Correo de Primera Oase.

�Vol 1

Publ. Inst. Inv. Cient., UANL, Méx.

28

TABLA I
The frequency (f) and % cumulative f r e q u e n e y ( % cf) distributions of length and width of an undescribed Opalina sp. of adultR,ana clamitans caught in August, 1973 at Saratoga Springs, N. Y. The
ranges are 161-333 x 50-170_){ ; 10% increments are 17.2 and 12.0)&lt; .
Sample size is 100.

Microns
161.0
178.2
195.4
212.6
229.8
247.0
264.2
281.4
298.6
315.8

-

178.1
195.3
212.5
229.7
246.9
264.1
281.3
298.5
315.7
333.0

Microns

% cf

f
3
1
1
6
11
22
21
17
9
9

50.0
62.0
74.0
86.0
98.0
110.0
122.0
134.0
146.0
158.0

3

4
5

11
22

44
65
82
91
100

- 61.9
- 73.9
- 85.9
- 97.9
-109.9
-121.9
-133.9
-145.9
-157.9
-170.0

1

The striking feature in Table II is the rapid ea_rly growth of the nuclei followed by stabilization in size, as expected for most cells; in other
words, they are stable, except for before, during and after mitosis. Bv
the time ca. 40% of growth is attained.. AN is stabilizecl whereas NN
dampens late. To what extent will another ProtwPOlina so. sbar~ t.hese
reatures?
Cepedea 7,anceolata (Berzzenberger, 1904) Metcalf, 1923 is now raísed to Bezzenbergeria lance&lt;ila:ta gen. n., comb. n. and Bezzenbergeria gen.
n. defined as like Cey&gt;edR,a, except that it has 4 nuclei. This step_is taken
in accord with the belief that opalinids having 1, 2, 4, 8 or even 16 sta,ble nuclei should be given generic rank. Opalina obtrigoncndea rooxima
Metcalf, 1923 is raised to O. maxirna sp. n., as Zellerwlla uragumyensis
quadrata is to Z. uraguayquadrata sp. n. (see Amaro, 1966).

f

1

1

5

6

19
15
21
16

25
40
61
77
85
91
97
100

8
6
6
3

Cepedea elcmgata comb. n. is established for Opalina elcmgata Gurvich, 1926 despite Metcalf's (1927) contention that this species is suppressed C. salw,rOJY/íJ, Metcalf, 1923 and his claim that the same opalinid
of Rana escu}enta ridilm:n,da ~urs in Algiers, Turkestan and Pal{istan.
Fortunately, no conflict exists with O. elcmgata Carini, 1937 (see Amaro· 1963) .

On the grounds of inadequate descriptkm, the following species are
suppres.,ced:

TABLA II
The % cf di s tri bu ti o ns of LC, WC, LN, WN, AN and NN
of ProtoO'palina sp. from Dharwar, India (H &amp; E slides through the
courtesy of J. C. Uttangi) with 10% increments in the 1st column, i. e ..
for LC 0-10% can also be stated 117.0 - 128.5,)&lt;. (N = 113).

LC

wc

LN

WN

AN

NN

34-73

0-78

Cepedea buergeri Metcalf, 1923.

C.
C.
C.
C.
C.

117-233

19-62

11-35

8-16

- - -- - - - - - - - - - - - - - - -- - - - - -O- 10

112131415161-

20
30
40
50
60
70
71- 80
81- 90
91-100

5.3

8.8
17.7
35.4
55.8
71.7
85.0
92.9
99.1
100.0

2.7
7.1
15.9
36.3
60.2
78.8
86.7
92.9
99.1
100.0

0.9
4.4
21.2
72.6
88.5
97.3
98.2
98.2
99.1
100.0

9.7
34.5
34.5
65.5
84.1
91.2
98.2
982
99.1
100.0

4.4
30.1
45.1
78.8
92.9
93.8
96.5
97.3
98.2
100.0

0.9
0.9
1.8
2.7
4.4
23.0
43.4
60.0
903
100.0

buergeri sinensis Metcalf, 1923.

dimidiata oottonia.rw, De Mello, 1944.
dimidiata hawaie'flSis Metcalf, 1923.
dimidiata orientalis Metcalf, 1923.
dimidiata paraguensis Metcalf, 1923.
e. dimidiata zelleri Metcalf, 1923.
C. doliclwsoma Metcalf. 1923.
C. fl,ava (Stokes, 1884) Metcalf, 1923.
C. fl,oridensis Metcalf, 1923.

Range

% (in,A)
mcrease

29

No. 3

Width

Length

Earl: 0n Opalinida

)

l
)

C. luzonensis aponen.sis Metcalf, 1940.
mi nor Metcalf, 1923.
multiformis Metcalf, 1923. ·
multiformis schlegelii Metcalf, 1923.
obovoidea Metcalf, 1923.
pulchra japmiica Metcalf, 1923.
pul,chra javensis Metcalf, 1923.
oo.harana Metcalf, 1923.
seychellensis Metcalf, 1923.

C.
C.
C.
C.
C.
C.
C.
C.

�29

)

No. 3

\

The striking feature in Table II is the rapid ea,rly growth of the nuc.lei followed by stabilization in size, as expected for most cells; in other
words, they are stable, except for before, during and after mitosis. BY
the time ca 40% of growth is attained .. AN is stabilized. whereas NN
dampens late. To what extent will another Protoapalina so. sbarP t.hese
reatures?

Ea:rl: On Opalinida

Cepedea wnceolata (Bezzenberger, 1904) Metcalf, 1923 is now raised to Bezzenbergeña kLnceql,a,ta gen. n., comb. n. and Bezxenbergeria gen.
n. defined as like Gepedl'Ja, excePt that it has 4 nuclei. This step is taken
in accord with the belief that opalinids having 1, 2, 4, 8 or even 16 stable nuclei should be given generic rank. OpaJ,ina obtrigonoidea maxima
Metcalf, 1923 is raised to O. maxima sp. n., as Zelleriella uraguayensis
quadrata is to Z. uraguayquadrata sp. n. (see Amaro, 1966) .
Gepedea elongata comb. n. is established for Opalina elongata Gurvich, 1926 despite Metcalf's (1927) contention that this species is suppn:ssed C. saliaranro Metcalf, 1923 and his claim that the same opalinid
of "Rana escu;!enta ridibunda occurs in Algiers, Turkestan and Pakistan.
Fortunately, no conflict exists with O. elongata Carini, 1937 (see Amaro-1963) .

On the grounds of inadequate descriptkm, the following species are
suppres..,c;:ed:
Cepedea buergeri Metcalf, 1923.
C. buergeri sinensis Metcalf, 1923.
C. dimidiata cottaniana De Mello, 1944.
C. dimidiata hawaiensis Metcalf, 1923.
C. dimidiata orientalis Metcalf, 1923.
C. dimidiata para.guensis Metcalf, 1923.
C. dimidiatn zelleri Metcalf, 1923.
C. dolich-Oscnna Metcalf, 1923.

C. [lava (Stokes, 1884) Metcalf, 1923.
C. fl,oridensis Metcalf, 1923.
C. luzonensis ap&lt;YnenSis Metcalf, 1940.
C. minm Metcalf, 1923.
C. multiformis Metcalf, 1923. C. mul,tiformis schlegelii Metcalf, 1923.

l
)

C. obovoidea Metcalf, 1923.
pukhra japan,ica Metcalf, 1923.
pulchra javer1,S1S Metcalf, 1923.
8(J]w,rar,a Metcalf, 1923.
seychellensis Metcalf, 1923.

C.
C.
C.
C.

�Publ. lnst. lnv. Cient., UANL, Méx.

30

Protoopalina aaxmucl,ea;f;a Lata Metcalf, 1923.
P. borneonensis Metcalf, 1940.
P. capensis Metcalf, 1940.
P. caudata attenuata Metcalf, 1923.
P. caudaixl discoglossi Metcalf, 1923.
P. caudata lata Metcalf, 1923.
P. hammondi Metcalf, 1923.
P. Zonginucleata Metcalf, 1923.
P. nwssambioensis Metcalf, 1923.
P. nutti Metcalf, 1923.
P. primordial,is (Awerinzew, 1913) Metcalf, 1923.
P. regularis Metcalf, 1923.
P. rhioodermaws Metcalf, 1923.
P. yunnanensis Metcalf, 1940.
P. xamachana Metcalf, 1940.

Vol. 1

No. 3

Earl: On Opalinida

31

O. carolinensis Metcalf, 1923.
O. chorophili Metcalf, 1923.
O. oopei Metcalf, 1923.
O. drayoonii Metcalf, 1923.
O. guatemalne Metcalf, 1923.
O. helenae Metcalf, 1923.
O. helenae phyllmnedusae Metcalf, 1923.
O. hylaxena Metcalf, 1923.
O. hylaxena orbicuJ,ata Metcalf, 1923.
O. hylaxena parvinucleata Metcalf, 1923.
O. japonica javensis Metcalf, 1940.
O. kennicotti Metcalf, 1923.
O. moreletei Metcalf, 1923.
O. natalensis Metcalf, 1923.
O. oblanceolata MetcaJf, 1923.
O. obtrigonoidfü austricola Metcalf, 1923.
O. oregonensis Metcalf, 1923.
O. panamensis Metcalf, 1923.
O. pickeringii Metcalf, 1923.
O. raddei Mctcalf, 1923.
O. ranarum arvalis Metcalf, 1923.
O. ranarum lata Metcalf, 1923.
O. ranarum orbicul,ata Metcalf, 1940.
O. ranarum smithi Metcalf, 1923.
O. sudafricana gutturolis Fantham, 1931.
O. spiralis Metcalf, 1923.
O. terrae-mariae Metcalf, 1923.
O. triangulata Metcalf, 1923.
O. woodhousei Metcalf, 1923.
O. virguloidea magninucleata Metcalf, 1923.
O. zeylonica Mctcalf, 1940.

Zelleriella, atelopodos Metcalf, 1923.
Z. atelopyxena Metcalf, 1923.
Z. boulengeri Metcalf, 1923.
Z. couchi Metcalf, 1923.
Z. dendrolxitidis Metcalf, 1923.
-z. engystomopsis Metcalf, 1923.
z. hypopacheos Metcalf, 1923.
Z. intermedia Metcalf, 1923.
Z. intermedia cuneata Metcalf, 1923.
Z. leptodactyli Metcalf, 1923.
Z. opisthocarya typh&lt;Ynia Metcalf. 1923.
Z. patagoniensis Metcalf, 1923.
Z. punctata Metcalf, 1923.
Z. scaphi-Opodos Metcalf, 1923.
Z. septentrionalis M,etcalf, 1923.
Z. spinulosa Metcalf, 1923.
sternosignatus Metcalf, 1923.
Z. trinitatis Metcalf, 1923.
Z. woodhousei Metcalf, 1923.
Z. venezuelae M€tcalf, 1923.

One of the more interesting suppressed species is Proro&lt;YpOl,ina nutti
which seemed to represent more than 1 sp., including, possibly, an opalinid
having only 1 nucleus.

Opalina annandali Metcalf, 1940.
O. bufoxena Metcalf, 1923.
O. carnerunensis Metcalf, 1923.

In summation, it is hoped that the reader will see a number of rea•
sons why the level of objectivity should be raised in species discrimination.

z.

�J2

Publ. Inst. Inv. Gient., U ANL, Méx.

Vol. 1

CUADERNOS DEL INSTITUTO DE INVESTIGACIONES CIENTIFICAS

LITERATURE CITED

l. Efectos de la Octopresina en Vejiga de Sapo y Piel de Rana. Por G. Molina,
R. Moreira y L. A. Garza, pp. 1-15 (Mayo, 1963).

AMARO, A.
.
.
. .
1963. Sobre Opalina elongata Carim, 1937, (Mastigophora, Opalimna),
entozoário de anuro. Atas Soc. Biol. Río de Janeiro 7:1-4.
1966. Revisao dos paratipos de cinco espcie de opalinídeos do Brasil,
depositados na "Smithsonian Institution" nos Estados Unidos
(Sarcomastigophora, Opalinata). Mem. Inst. Oswaldo Crus 64:35-39.
1972. Sinopsc das recentes especies de opalinídros (Sarromastigophora,
Opalinata). 3a. nota: género Cepedea Metcalf, 1920. Atas Soc.
Biol. Rio de Janeiro, 15: 153-158.

2. Protozoarios Ciliados de México. VI. Algunos aspectos del Ciclo Vital de
Multifa,sc-iculatum alegans (Protozoa: Suctorida), Por E. López ü"choterena,
pp. 1-13 (Noviembre, 1963).

BEZZENBERGER, E.
1904. über Infusorien aus asiatische Anuren. Arch. Protistenk., 29:
255-264.
1970. Hegneriella dobelli gen. n., sp. n., (Opalinidae) from Bufo valliceps and sorne remarks on the systematic position on the Opalinidae. Acta Protazool., 9: 41-48.
F ANTH.AM, H. H.

1931. Sorne parasitic Protozoa found in South Africa. XIV. South African J. Sci., 28: 323-333.
GURVICH, V. F.
1926. (Fauna Prostyeyshij Kishyeynka Pyagushek Okrysmnosmyi Tashkenja). Univ. Asie Centrale (Tashkent) Bull., 14: 47-61.
KACZANOWSKI, A.
1973. Morphological studies on Opalinids. II. Acta Protozoo!., 12: 29-51.
DE MELLO, F.
1941. Further additions to the list of ciliates living in the intestine of
Rana CJlan&lt;Yphlyctis from Nova Goa. J. Roy. Asiatic Soc. Bengal
(Sci.), 10: 1-7.
MEfCALF, M. M.
1923. The oryalinid ciliate Infusorians. Bull. U.S. Natl. :r.~us. 1211: 1-184.
19--27. "Optilina ewngata" Gourvitch is Cepedea sahc,rana M~tcalf. Science, 66: 170.
1940. Further studies on the opalinid ciliate infw:orians Proc. U S.
Nat. Mus., 87: 4€5-635.
WESSENBERG, H.
1961. Studies of the life cyele and morphogenmis of Oprdina. Univ.
Calif. Publ. Zool, 61: 315-370.

3. Tratamiento Proposicional del Algebra de Clases. Por Hugo Padilla, pp. 1-17
(Mayo, 1964).

4. Optimización en un Proyecto para el Control de Avenidas de un Río. Por Eladio Sáenz Quiroga, pp. 1-14 (Junio, 1964).
5. Tres Nuevas Especies de Trematoda Rudolphi, 1808, que Parasitan a Murciélagos ( Chiroptera Blumenbach, 1774) de América Latina. Por Eduardo
Caballero y C., pp. 1·34 (Julio, 1964).

6. Datos

Biológicos Preliminares de las Cochinillas de los J.ardines,
Principalmente Po,ceUio laevis Latreille, 1904, en Monterrey, N. L. Por M.
Ortiz y J. J. Ortiz H., pp. 1-17 (Abril, 1965).

7. La acción le los Grupos Sulfhiclrilos y Disuliuro Unidos a las Proteínas en
el Mecanismo de Acción de la Hormona Antidiurética. Por Gilherto Molina,
A. Farah y R. Kruse, pp. 1-30 (Mayo, 1965).

8. Características Químicas Farmacológicas y Ana.tomo-Patológicas del Principio Activo de la Karwinskw humboldtdwna. Por I. N. Martínez C., H. Menchaca S., S. de la Garza y G. Molina, pp. 1-26 (Diciembre, 1965).
9. Estudio de la Polimerización del Estireno en Presencia de Piridina. Por M. Saloma T. y H. Menchaca S., pp. 1-34 (Marzo, 1966).
10. Hipertrofia Uterina. Por Salvador Martínez Cárdenas y
1-24 (Noviembre, 1966).

J. Guerra Medina, pp.

11. Lista de Peoes dd Estado de Nuevo León. Por Salvador Contreras Balderas,
pp. 1-12 (Abril, 1967).
12. La Hormona Antidiurética y la Furosemida en el Transporte de Sodio. Por
G. Molina B., J. O. González H. y U. G. Orozco V., pp. 1-19 (Enero, 1967);
13. La Hormona Antidiurética y la Furosemida en el Transporte de Sodio (11).
Por G. Molina B., J. O. González y J. G. Orozco, pp. 1-18 (Abril, 1967).
14. Datos Botánicos de los Cañones Orientales de la Sierra de Anáhuac, al Sur
de Monterrey, N. L., México. Por Jorge S. Marroquín, 1-80 (Diciembre 4,
1968).

�15. Berberidáceas de México I. Por Jorge S. Marroquín, pp. 1-22 (Febrero 28,
1972).
16. Agonostomus monticola (Bancroft): Primer Registro de la Familia Mugilidae
en Nuevo León, México. Por Salvador Contreras Balderas, pp. 1-5 (Septiembre 28, 1972).
17. Tremátodos Digéneos de Peces Dulceacuícolas de Nuevo León, México I. Dos
Nuevas Especies y un Registro Nuevo en el Carácido Astyanax Jasciatus mexicanas (Filippi). Por Fernando Jiménez G., pp. 1-19 (Mayo 11, 1973).
CAMBIO DE TITULO
LOS CUADERNOS PASA:\ A LLAMARSE PUBLICACJONES Y SE SEPARAN
POR DISCIPLE\\S, DE LAS Cl,ALES LA PRIMERA ES PUBLICACONES BIOLOCICAS, COl\ OTRAS SERIES El\ PREPARACJOT\.
1(1). Tres '\uc,os Registros ele A\"es para el L"-lado de Nuevo León, Méxieo. Por
Armando Jesús Contreras Balderas, pp. 1-8 (Agwto lo., 1973.)
1 (2). {\'otropis aguirrepequeñoi, Especie :\urva Endémica del Río Soto la Marína,
Tamaulipas. :\léxico (Pi.oces: Cyprinidae). Por Salvador Contreras-B y
Raúl Rivera-T.• pp. 9-23 (Octubre 5, 1973).

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