Some Trematodes in South African Anura. 
199 
their dispersal, must have been considerably different from their repre- 
sentatives now living. 
LITERATURE REFERRED TO. 
Those papers marked with an asterisk (*) I have not been able to see, but have had to 
depend for any knowledge of their contents on such works as (1), (2), (17), (18). 
(1) Benham. — "The Platyhelmia, Mesozoa, Nemertini," Lankester's Treatise of 
Zoology, pt. iv. 
(2) Braun. — " Vermes," in Bronn's Classen u. Ordnungen des Thierreichs (1892-3). 
(3) Braun. — "Zur Verstandigung iiber die Gultigkeit einiger Namen von Fascioliden- 
Gattungen," Zool. Anz., xxiv (1901). 
(4) Braun. — " Trematoden der Chelonier," Mitt. a. d. Zool. Mus. in Berlin (1901). 
(5) Braun and Luhe. — Handbook of Practical Parasitology, English edition, 1910. 
*(6) Braun, M. — Fortsetzung der Beytrage zur Kenntniss der Eingeweidewiirmer (1792). 
(7) Cawston, F. G. — " The Cerceriae of the Transvaal," Parasitology, vol. xi, No. 1, 
1918. 
*(8) Creutzburg. — inters uchungen iib. d. Bau u. d. Entwickelung d. Dist. Ovocau- 
datum Vulpian, etc. 
*(9) Diesing. — " Monographic der Gattungen Amphistoma und Diplodiscus" Ann. d. 
Wiener Mus. der Naturgeschichte, Wien, 1835. 
*(10) Frolich. — Beytrage zur Naturgeschichte der Eingeweidewiirmer (1792). 
(11) Fischoeder. — "Die Paramphistomiden der Saugethiere," Zool. Anz., xxiv, Bd. 
No. 646, 1901. 
*(12) Goeze. — Versuch. einer Naturgeschichte der Eingeweidewiirmer thierischen Korper, 
Leipzig, 1787. 
(13) Gilchrist. — "The Life-history of Distoma luteum, n. sp., with Notes on some 
Cerceriae and Rediae found in South Africa," Parasitology, vol. x, No. 3, 1918. 
(14) Johnston, S. J. — "On some Trematode Parasites of Australian Frogs," Proc. of 
the Linn. Soc, N.S.W., vol. xxxvii, No. 146. 
(15) Looss, A. — " Recherches sur la Faune Parasitaire de FEgypte," Memoires l'lnstitut 
Egyptien, tome iii, fascicule premier, Le Caire, 1896. 
(16) Looss, A. — " Uber Amphistomum subclavatum Rud.," Festschrift, Leuckart, 1892. 
(17) Looss, A. — "Die Distomen unserer Fische u. Frosche," Bibliotheca Zoologica, 
Heft 16, 1894. 
(18) Looss, A. — " Weitere Beitrage zur Kenntniss der Trematoden-Fauna Agyptens, 
u.s.w.," Zool. Jahrb. Syst., xii, pp. 521-784 (1899). 
(19) Looss, A. — " Zur Sammel- und Conservierungstechnik von Helminthen," Zool. Anz., 
xxiv (1901), p. 302. 
*(20) Pagenstecker. — Trematodenlarven u. Trematoden, Heidelberg, 1857. 
*(21) Roesel von Rosenhof. — Historia naturalis ranarum, etc. (1758). 
*(22) Rudolphi. — Entozoorum sive vermium intestinalium historia naturalis (1809). 
(23) Stiles and Hassall. — " An Inventory of . . . the Fasciolidae," Archiv de 
Parasitologic, i, 1898, p. 81. 
*(24) Vulpian. — " Note sur un nouveau Distome de la grenouille," Compte rendu, 1859. 
*(25) Zeder. — Erster Nachtrag zur Naturgeschichte der Eingeweidewiirmer, etc., Leipzig 
(1800). 
(26 ) Zeller. — " Untersuchungen iiber die Entwicklung und den Bau des Polystomum 
integ err imam" Zeit. Wiss. Zool., xxii, 1872. 
