308 H. M. WOODCOCK. 



T. tincaj, Lav. and Mesn., 1904. Average length Son; width 2^- — 3/t. 

 This form (fig. 60b) is very similar to the last. The free part of the flagellum 

 seems to be rather shorter — judging from the figures, its length not being 

 stated. (V.) host, Tinea tinea, tench. 



T. abramis, Lav. and Mesn., 1904.. Named, but not diagnosed. The 

 authors say the blood of the specimen in which this Trypanosome was seen 

 was in too bad a condition to permit of examination. From a bream, 

 Abramis brama. 



T. barbatulje Leg., 1904. — The body of this parasite is rather wider 

 (relatively), and more stumpy than usual. Inclusive length 30— 40|x; 

 width 4 — 6/t. Free part of flagellum 11 — 12 M- The undulating mem- 

 brane possesses large and deep folds. The anterior end terminates in a 

 small beak, about l-g/^ in length. (V.) host, Cobitis barbatula, loach; 

 (I.) host, Piscicola, sp., a leech, in the intestine of which Leger has observed 



Fig. 61. — a, T. carassii, Mitr. ; b, T. cobitis, Mitr. (After 

 Mitrophanow, from Doflein.) 



important evolutive stages of the parasite (see above, p. 250). Leger regards 

 this form as being distinct from the following one. 



T. cobitis, Mitrophanow, 1883. (Synn., Hajuiatomonas c, Mitr,, 

 Trypanosoma piscium and T. fusiforme piscium, in part, Danil.). — 

 This and the other Trypanosome originally described by Mitrophanow do 

 not appear to have been studied since, hence the insufficient description and 

 also the poor figures (fig. 61b), which are the only ones available. The 

 length is given as from 30— lO^t, and the breadth 1 — l^n [P]. The 

 flagellum alone is 10 — 15/t. (V.) host, Cobitis fossilis, another loach. 



T. carassii, Mitr. 1883. (Synn., Hicmatomonas c, Mitr.,T. piscium 

 and T. fusiforme piscium, in part, Danil.). — Larger, but more flattened, 

 than the preceding form, which, otherwise, it much resembles. This very 

 slight description is about all that one has upon which to rely for 

 diagnosis of this form from Carassius vulgaris, Prussian carp. 



T. granulosum. Lav. and Mesn., 1902, is readily distinguishable from the 

 preceding forms, being more sharply marked off from them by its morpho- 

 logical characteristics than they are from one another. There can be no 



a 



