Comparative Parasitology 67(2) 2000 - Peru State College

of Professor Robert Bourgat (University of Perpignan,
France).
Remarks
Thaparia bourgati sp. n. differs from all other
species of the genus in the same characters as
T. carlosfeliui. Thaparia bourgati differs from
T. carlosfeliui in the shape of the preanal membrane
in the male—9 lobes in T. bourgati and 4
lobes in T. carlosfeliui—and in the size of the
eggs (smaller in T. bourgati).
Discussion
Thaparia bourgati sp. n. and T. carlosfeliui
sp. n. differ from all other species of the genus
Thaparia, except T. thapari, in the lack of caudal
alae. Both species differ from the subspecies
T. thapari australis in the shape and the disposition
of labial papillae, the lack of apical chitinoid
pieces, the lack of a tip at the end of the
male tail, and the presence of a longer spicule
compared with the length of the tail. They differ
from the subspecies T. thapari thapari in the
disposition of labial papillae, the lack of esophageal
teeth and the lack of apical chitinoid pieces,
the shape of the preanal membrane, and the
shape of the gubernaculum in the male, and
from T. thapari rysavyi in the arrangement of
labial papillae and in the shape of the adanal
BOUAMER AND MORAND—OXYUROID GENUS THAPARIA 179
tudinidae. Medium-sized, lateral alae present or
absent. Mouth with 3 or 6 slightly bilobed lips.
Esophagus rather short, divided into 2 parts of
about equal length: an anterior muscular corpus
and a posterior glandular isthmus terminating in
a valvulated bulb. Excretory pore bulbar or postbulbar.
MALE: Tail truncated, spiked, or simple.
Caudal alae present or absent. Spicule simple or
contorted, may be very long. Gubernaculum U-,
V-, or Y-shaped. Caudal papillae in 3 pairs: 2
circumcloacal, 1 pair at or near tail end.
FEMALE: Tail tapering to sharp point. Vulva
postequatorial, sometimes very close to anus.
Vagina long; ovijector present. Eggs thinshelled,
relatively few.
TYPE SPECIES: Thaparia macrospiculum Ortlepp,
1933, in Psammobates tentorius; South
Africa.
Key to the Species and Subspecies of the
Genus Thaparia
This key follows Johnson (1973b) and includes
T. capensis Fitzsimmons, 1961, T. macrocephala
Petter and Douglass (1976), T. microcephala
Petter and Douglass (1976), and T.
carlosfeliui sp. n. and T. bourgati sp. n., both
described herein.
membrane in the male. Finally, T. carlosfeliui 1. Caudal alae in male present 2
sp. n. resembles T. bourgati sp. n. in the arrange- Caucal alae in male absent ..... 7
ment of the labial papillae, but it is distinguished 2' Iai! in ma!e spiked " I
^ r Tail in male truncated 5
by the shape of the preanal membrane in the 3 Spicule contorted; vulva away from anus
male and by the size of the eggs. T. contortospicula Walton, 1942
The genus Thaparia shows a wide geograph- Spicule simple; vulva far away from anus ..... 4
ical distribution, with 3 Palearctic species (T. 4- Len§th of sPicule 1/2 of body
..... _, , . . „, , T. macrocephala Fetter and Douglass (1976)
carlosfelim sp. n., T. bourgati sp. n., and T. tha- Length of spicule 1/3 of body
pan), 2 Nearctic species, 2 South African spe- T. micmcephala Fetter and Douglass (1976)
cies, and 1 species from the Galapagos Islands. 5. Spicule simple; vulva far (more than 1,450 [Jim)
The question remains open concerning the pres- from anus T. capensis Fitzsimmons, 1961
ence of this genus in other members of the Pa- Splcule simPle; vulva near (less than 20° ^m) f
^ anus 6
learctic tortoises (T. horsfieldii, T. graeca, T. 6 Spicule less than 1 mm in length
hermanni, the Egyptian tortoise, Testudo klein- T. domerguei Fetter, 1966
manni Lortet, 1883, and the marginated tortoise, Spicule more than 2.5 mm in length
Testudo marginata Schoepff, 1792). T macrospiculum Ortlepp, 1933
7. Buccal cavity with 6 teeth
Emended diagnosis of the genus Thaparia , , . T: ll*apari th«pari Dubinina (1949)
to l Buccal cavity without teeth 8
The use of a scanning electron microscope al- g. Spicule less than 90 jxm; tail more than 90 jxm
lowed verification that the previously described in length T. thapari australis Fetter, 1966
adanal papillae are simple lobes. The lack of ter- Spicule more than 90 jun; tail less than 90 ^.m
. , . c j u * - , u in length 9
mmal nerves is confirmed by optical observa- 9 preana, ^embrane absent
tion. The new diagnosis of the genus is: T. thapari rysavyi Johnson, 1973
Pharyngodonidae: Intestinal parasites of Tes- Preanal membrane present 10
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