UI.UOD-I'ARAISITKS. 411 



TilYl'ANOSOME.S KOINU J.\ THE Bl.OOD OK j\J A.Vi.MALS. 



^^^K. Haihtat. Character. 



Fat Mouse {Nteat(»ii>/s pra/ensis) S. Africa. Of NaK.'ina type. 



Hi) KdU ( l<Jpim,ys noriH-gicus) Kiigland. T. lewisi. 



Birds. 



Ueii- will-red Kniiicoliii ( Francolinus S. Africa. 7'. avium typp. 



ffariepen.tis). 



Chukar Partridfrc (C'nrrafti* c/ntAvir) India. do. 



Mnvsh liWd (Lcistes ffnianensis) Deinerara. do. 



WiixhiW (Ji'strel da melj)oda) Australia. do. 



I^vailIaiit'.sFraiicolin {Francolinus leixtil- Cape Colony. do. 

 lanii). 



\'>\n\ \V\\\\ {('opsj^chus saularis) India. do. 



Bower Bird {Ambli/ornis subalnris) Mew (iiiinea. do. 



Uatrachjaxs. 



*M\h\eVYn^i liana esculenta) Europe. T. rotatorittm \yi,«. 



*Tree Vroy; ( Hjila arburea) ,lo. j,,, 



Troe Fro^CHylavenulosa) S. America. do. 



There are certain flagellated organ i.sins which niav appear in 

 the blood and live there not as actiial para.site.s, but a\-cidentally. 

 In reptiles there are certain kinds of inflannnation of the intes- 

 tine, accompanied by ulceration, which cause the walls of the 

 intestine to become permeable, .so that some of the flagellated 

 organisms which are often found there are able to get into the 

 blo(>d and live there. The alteration of .structure of the intestine 

 during the nianition of hibernation is also favourable to the 

 l>Mssage of organisms through the intestinal wall. 1 have found 

 the.se flagellates in the blood of 8 reptiles, and they have been 

 either varieties of Ilexamitus, found tir.st by Dujardin in 1841 in 

 the frog's intestine, or of Trichomonas : the former in the fro>' 

 and tortoises, the latter in the .snake. " 



The only other mention of the.se organi.sms in the l^lood is bv 

 Danilew.sky, in 1889, who found the Hexaviitvs in the blood Jf 

 Kwys hUaria and Bana esculenta, so that those given in the 

 following list are all new hosts for this kind of infection. In the 

 HexmniUis infections there was general (edema of the ti.s.sues and 

 ascites, and the organisms were found also in the transudation. 



I.NTE.STIXAL (JllGAXLS.MS FOi;.\D IN THE Hf.OOU OF JiEI'TJI.ES AXD 

 JiATRACHlAXS. 



'^'*«E. Habitat. Type of Parasite. 



\in\\ ¥vn^ {Rana ratesbiana) N.America. Hexamifvx. 



Leopardine .Snake {Coluber lenjmrdinus). Europe. Tric/iomo'ias. 



I u(\\iiu Cohva {Naia tripudians) India. do. 



Mox Tortoise>> (Cistudo Carolina) N.America. Hexamitus. 



Three-banded Terrapin {Ci/clem>/s tri- E. Indies. do. 

 fasciata). 



Hog--nosed Snake (mterodon simus) N. America. Trichomonas. 



West-African P'ython I P.v^/iOK «-W) W. Africa. do. 



Anpulated lnr\.o\'<c {Trsfpdn anr,„lala) ... S. Africa. Hr.vamifux. 



