570 



TREMATODA 



ovary was branched, and it — the shell gland and the yolk glands (which met 

 each other posteriorly) — resembled those of F. buski. 



Pathogenicity, — The patient sufiered from vomiting, which resulted in the 

 expulsion of the flat- worms. 



Fasciolopsis goddardi Ward, 1910. 



Definition^— Fasciolopsis with spines and very large vitellaria. 

 Remarks, — -This fluke, which is imperfectly known, was found 

 in Shanghai, China, and measures 22 x 9 mm. 



FAMILY HETEROPHYIID^. Odhner, 1914. 



Definition.' — Fascioloidea, hermaphroditic, with the ovary in 

 front of the testes, genital pore behind the ventral sucker, and 

 surrounded by a pseudo-sucker, which is behind or on a level 

 with the acetabulum, and has its muscles blended with the body 

 musculature and not sharply differentiated therefrom. 



Type Genus. — Heterophyes Cohhold, 1866. 



Classification. — -The two genera which concern us can be differen- 

 tiated as follows : — 



A. Acetabulum and genital suckers ventrally situate and 



separate- — Heterophyes. 



B. Acetabulum and genital suckers dextro-laterally situate 



and surrounded by a complex musculature — Metagonimus. 



Genus: Heterophyes Cobbold, 1866. 



Synonyms. — Cotylogonimus Liihe, i8gg; Coenogonimus Looss, 1899. 



Definition.— Heterophyiidse with suckers ventrally situate, 

 with a narrow, movable, anterior portion, and a broader, less 

 movable, posterior portion, which contains the genitalia. Cuticle 

 with scale-like spines; suckers widely separated; oesophagus long. 

 Genital pore placed laterally, behind the ventral sucker, and 

 surrounded by a genital prominence with chitinous rodlets. No 

 cirrus pouch. The testes are at the posterior end, and the ovary in 

 a median position between them. Yolk glands are small, and 

 situated at the sides posteriorly. 



Type Species — Heterophyes heterophyes v. Siebold, 1852. 



Heterophyes heterophyes V. Siebold, 1852. 



' Synonyms. — Distomum heterophyes v. Siebold, 1852 ; Mesogonimus 

 heterophyes Railliet, 1890 ; Ccenogonimus heterophyes Looss, 1900 ; 

 Cotylogonimus heterophyes, Braun, 1901. 



Definition. — Heterophyes with ventrally situate and separate 

 acetabular and genital suckers. 



History. — ^This minute parasite was discovered by Bilharz in the 

 intestine of a boy in Cairo in 1851, and again a little later, but the 

 third observation was not till 1891 by R. Blanchard ; since then Looss 

 has found it in Alexandria and Cairo, where he says it is not un- 

 common. Leiper has recorded several cases in Chinese seamen. 



