400 



TRYPANOSOMIDM 



and is thought to be spread by a leech — Pontohdella muricata ; T. sacco- 

 branchi Castellani and Willey, 1905, in Saccobmnchus fossilis in the Lake of 

 Colombo, Ceylon, 



Trypanosomes have been found in eels. Brumpt in 1906 described a 

 number of new species in different kinds of fish, and Zupitza, in 1909, made 

 a valuable addition to the knowledge of this subject. 



Some trypanosomes found in fish are T. danilewskyi Laveran and Mesnil, 

 1904, in Cyprinus carpis ; T. carassw Mitrophanov, 1883, in Zarassms vulgaris ; 

 T. tincce Laveran and Mesnil, 1904, in Tinea tinea ; T. barbcs Brumpt, 1906, in 

 Barbus fluviatilis ; T. elegans Brumpt, 1906, in Gohio fluviatalis ; T. phoxini 

 Brumpt, 1906, in Phoxinius Icevis ; T. abramidis Laveran and Mesnil, 1904, in 

 Abramis brama ; T. leucisci Brumpt, 1906, in Leuciscus sp. (?) ; T. scardini 

 Brumpt, 1906, in Scardinius erythrophthalmus ; T. squalii Brumpt, 1906, in 

 Squalius cephalis ; T. cobitis Mitrophanov, 1883, in Cobitis fossilis. There are, 

 however, many others described. T. roule.i Mathis et Leger, 191 1, in 

 Monopteres javanensis ; T. pellegrini Mathis et Leger, 191 1, in Macropodus 

 viridi auratus : T. chagasi Horta and Machado, 191 1; T. dovhni Yakimoff, 

 1912, in Solea; T. ^a/emoj^ in Sytignatis. 



Section 11. : Trypanosomes of Amphibia. 



The trypanosomes of frogs were discovered by Gluge as far back as 1842 

 in the form of the largest trypanosome known — i.e., T. rotatorium. 

 It seems probable that leeches are the carriers of these parasites. 



Fig. 102. — Trypanosoma pertenue Fig. 103. — Trypanosoma vittatcB 

 Robertson. Robertson. Shows the Try- 



panosome ROLLING UP Prior to 

 Division. 

 (From drawing by Miss Robertson.) 



Trypanosoma inopinatum Ed. and Et. Sergent, 1904. 

 Synonyms. — T. elegans Fran9a and Athias ; T. undulans Fran9a ; T. Henderson 

 Patton. 



Found in R. esculenta L. in Algeria, in R. hexodactyla and R. tigrana in 

 India. It is very like L. lewisi, but is more stumpy. It is spread by the leech, 

 Helobdella algira. It gives rise to herpetomonas and crithidial forms and 

 Brumpt has been able to infect frogs by the bite of the infected leeches, and 

 has shown that the infection can be spread by the second generation also — 

 i.e., that it is hereditary. It is also inoculable. The crithidial forms are said 

 to be the infective agent by Fran9a. 



Trypanosoma nelspruitense Laveran, 1904. 

 Discovered by Theiler in R. angolensis Bocage and in R. theileri Macquart . 



Trypanosoma somalense Brumpt, 1906. 

 In Bufo reticulatus from Somaliland. 



