640 FAMILY: CEYPTOBIID^ 



So far, no observer has noted an encysted stage of this flagellate, 

 though it appears evident that the flagellate is handed on from snail to 

 snail during copulation. 



Poche (1903) described a very similar flagellate from the stomach of 

 certain Coelenterates {SiphonojjJiora). The organism was studied by 

 Keysselitz (1904), who gave it the name Trypmwphis grohheni. The 

 flagellate measures 65 by 4 microns, has a centrally placed nucleus, and a 

 small kinetoplast which is near the anterior end of the body. There is a 

 short anterior flagellum and another posterior one, which is continuous 

 with an axoneme attached to the body by a narrow undulating membrane. 

 The flagellate differs from the members of the genus Cryptohia, considered 

 above, in the shortness of the anterior flagellum and the small size of 

 the kinetoplast, but it is doubtful if this is sufficient justification for its 

 inclusion in a distinct genus. 



A flagellate, which probably belongs to the genus Cryptohia, has been 

 described by Hesse (1910) from the vagina of leeches (Hirudo medicinalis 

 and Aulastomum gulo) as Trypanoplasma vaginalis. Cryptohia carinarice 

 was recorded by Collin (1914) from the seminal receptacle of the mollusc 

 Garinaria mediterranea. Another form, which undoubtedly belongs to the 

 same genus, was recorded by Fantham and Porter (1910) as T. dendrocoeli, 

 from the intestine of the fresh- water planarian, Dendrocoelutn lacteum. 

 The organism was studied by Gelei (1913). Its structure and method 

 of reproduction was very similar to that of G. helicis. Intracellular 

 forms also occurred, as previously noted by Fantham and Porter, but 

 Gelei did not observe them in the cells of the ovary, as these authors 

 maintained. He considered the intracellular forms as being merely an 

 indication of the phagocytic powers of the host cells. Hamburger (1912) 

 described as a Trypanoplasma a flagellate of the mole cricket, Gryllotalpa 

 vulgaris. Structurally, it resembled a Gercomonas in that there was no 

 separate kinetoplast, and it is possible that it belongs to this genus. 

 Under the name Trypanoplasma isidorce Fantham (1923) describes a 

 flagellate of the receptaculum seminis of the pond snail Isidora tropica 

 in South Africa, 



B. Intestinal Forms of Fish. 



The first flagellate of this type to be seen in the intestine of marine fish 

 was one discovered by Dahl in 1887 in Gydopterus lumpus. It was referred 

 to by Mobius (1888) as Diplomastix dahlii. Keysselitz (1906) named it 

 Trypanoplasma ventricoli, as Leger, L. (1905), had placed in this genus as 

 T. intesiinalis a similar flagellate from the marine fish, Box hoops (Fig. 263). 



Elmhirst and Martin (1910) gave the name T. congeri to a form from 

 the stomach of the conger eel. Conger niger. Its method of multiplication 



