ON FILARIID WORMS FROM MAMMALS AND BIRDS. 



401 



31. Filariid AVorm.s from Manunals and Birds in the 

 Society's Gardens, 1914-1015. By C L. Bohlenger, 

 M.A., I). Sc., F.Z.8., Processor of Zoolooy^ University 

 of tlie Panjali, J^ahore. 



[Received September 1, 1920: Read Noveml)('r 10, 1920.] 



(Text-figures 1-12.) 

 Index. 



Page 



Introduction 491 



Filaria snbctitanea v. Linst ^ 492 



AcantliQclieilonema diacantha (Molin) 494 



„ gracile (Rud.) 496 



Dicheilonema horriduni (Dies.) 499 



Diplotricena tricusjns (Fedtsch.) 499 



diucce, sp. n 501 



„ fiahellata (v. Linst.) 502 



Filaria aramidis, sp. n 503 



In February 1914, I was asked by the Prosectorial Committee 

 to undertake the identification of the Nematode parasites 

 obtained at the Society's Gardens, and mateiial w^as forwarded 

 to me from the Prosectorium at regular intervals until the 

 beginning of 1916. During this period monthly reports, con- 

 taining provisional identifications, were sent to the Committee, 

 the material being laid aside for further investigation. My study 

 of the collection thus accumulated was interrupted l)y ni}^ depar- 

 ture for Mesopotamia on war service, and \A as only resumed three 

 years later at the end of 1919. 



The material described in the present memoir consists of the 

 representatives of the Family Filariidse obtained from Mammals 

 and Birds in the Gardens. Altogether eight species wfei-e met 

 with, two of which are described as new. Of the known forms, 

 three have been previously observed on single occasions only and 

 are species about which further information was desired ; the 

 other three are worms commonly reported from Zoological 

 Gardens; yet even of these our knowledge is by no means com- 

 plete, and I have therefore added a short account of two of them 

 to my descriptions of the less known species. 



During recent years renewed attempts have been made bv 

 various authoi'S, especially Pailliet and Henry, to break up the 

 old genus Filaria s. 1., and have resulted in a much improved 

 knowledge of many of tlie commoner Filariids ; some of the older 

 generic names proposed hj Yiborg, Diesing, etc., have been revived 

 and several new genera estal)lished. In this paper, I have 

 attempted, wherever possible, to refer the worms described to 

 these new groupings. 



33* 



