Some Trematodes in South African Anura. 
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Order MALACOTYLEA Mont. 
Family FASCIOLIDAE Eail. 
~ . P f Plagiorchinae Liihe. 
bub-iamily < _ 
^ =Lepodermatinae Looss. 
Genus Opisthioglyphe Looss (18). 
2. Opisthioglyphe endoloba Dujardin. 
Frolich (10) included this parasite with Diplodiscus subclavatus under 
the name Fasciola ranae. Kudolphi referred Frolich's Fasciola ranae to his 
own Distomum clavigerum, and in this was followed by a number of later 
writers, e.g. Dujardin and Diesing. Dujardin found the real 0. endoloba, 
however, and, recognising it as distinct from D. clavigerum, described it 
in 1845 as Distomum endolobum. It was subsequently also described by 
Looss (17). 
These small trematodes were found in the posterior region of the in- 
testine, and in the rectum of Xenopus laevis from Stellenbosch. They 
are small oval worms with a body-length of 2-2-55 mm. Anteriorly the 
body tapers slightly more than posteriorly. The posterior extremity is 
slightly emarginate. I only came across it once. In about a half-inch 
length of the intestine, just before it opens into the rectum, I found as 
many as fifteen individuals. 
0. endoloba is the common European frog parasite in Rana temporaria, 
occasionally in Bufo variabilis, calamitas, and vulgaris, and in Triton cristatus. 
The genus renamed by Looss (loc. cit., Zool. Jahrb., p. 588) is closely related 
to the genera Dolichosaccus (Johnston) and Brachysaccus (Johnston) found 
in Australian frogs (14). 
Sub-family Syncoelinae Looss. 
Genus Halipegus Looss. 
3. Halipegus ovocaudatus Vulpian. 
Vulpian first records this trematode in 1860. It was subsequently 
described by Creutzburg (8) and Looss (18). Sonsino (1893) also found it 
in the stomach and in the anterior region of the intestine, whereas it is 
usually found in the buccal cavity under the tongue. 
From the buccal cavity of Rana fuscigula, Stellenbosch. 
Family PARAMPHISTOMIDAE Fisch. 
Sub-family Cladorchinae Fisch. 
Genus Diplodiscus Diesing. 
4. Diplodiscus subclavatus Goeze. 
Frolich (10) included Opisthioglyphe endoloba with Diplodiscus sub- 
clavatus under the name Fasciola ranae. Previouslv, in 1787, Goeze (12) 
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