NEMATODE GENUS PHYSALOPTERA. 



1001 



Seurat. Yon Linstow added 19 species to those of his mentioned 

 above, one — Ph. cvrnphihia — being the only record of the occur- 

 rence of a member of this genus in amphibians, and another — - 

 Ph. caucasica — being the first species described from man. 

 Seurat has added 8 new species and two varieties of Ph. cdata, 

 Rud., 1819. 



The latest addition to the literature of this group is two papers 

 by Irwin-Smith reviewing the parasites found in reptiles. In 

 her firs b paper (1921) she gives a host list of all tlie reptilian 

 Physaloptera, as well as a bibliographical catalogue in connection 

 with them. In her second paper (1922) she brings together the 

 description of 13 species, all from lizards, and states that of the 

 15 species recorded from this group of reptiles, only 9, perhaps 10, 

 are valid, the others being either synonj-ms or not members 

 of this genus. 



In Stiles and HassaH's 'Index Catalogue of Round-worms '(1920) 

 80 species and 2 varieties of Physaloptera are listed, many of 

 which, however, are either synonyms or do not belong to this 

 genus. The addition of 3 species by Gedoelst (1916), 1 by 

 Hall and Wigdor (1918), and 1 by Travassos (1920) not listed 

 in the catalogue, and 7 new species described in this paper 

 brings the number recorded up to 92. These are distributed 

 among the principal host groups as follows : — 43 species from 

 mammals, 20 species and 2 varieties from birds, 28 species fi'om 

 reptiles, 1 species from amphibians, and 1 species, Ph. honnei, 

 sp. n., from a host in Dutch Guiana of which its native na.me 

 is " Sapalcara," but of which I have been unable to obtain the 

 scientific name. 



The following list comprises all the species recorded from each 

 of these host groups : — 



AMPHIBIA. 



Fh. anipliihia v. Linst., 1899. 



Fh. ahhreviata RiuL, 1819. 



Fh. ahjecta Leid3', 1856. 



Fh. affinis Gedoel., 1916. 



Fh. alba Stoss., 1902. 



Fh. aloisii-sabaudice Par., 1907. 



Fh. antarctica v. Linst., 1899. 



Fh. hritaiiica Skrjabin, 1916. 



Fh. chamceleontis Gedoel., 1916. 



Fh. colubri (Rud., 1819), Dies., 1851. 



Fh. constricta Leidy, 1856. 



Fh. contorta Leidy, 1856. 



Fh. dentata v. Linst., 1883. 



Fh. gracilis, sp. n. [1917, 



Fh. leptosoma (Gerv., 1848), Seurat, 



EEPTILIA. 



! FJi. 



Fh. 

 Fh. 

 Fh. 

 Fh. 

 Fh. 

 Fh. 

 Fh. 

 Fh. 

 Fh. 

 Fh. 

 Fh. 

 Fh. 

 Fh. 



longissima, sp. n. 

 monodens Mol., 1860. 

 muoronata Dies., 1851. 

 obtiisissima Mol., 1860. 

 pallaryi Seurat, 1917. 

 paradoxa v. Linst., 1908. 

 'phrynosoma, sp. ii. 

 quadrovaria Leiper, 1908. 

 retusa Rud., 1819. 

 simplicidens, sp, n. 

 sonsinoi v. Linst., 1895. 

 spiralis Sclm., 1866. 

 striata v. Linst., 1883. 

 varani, Parona, 1839. 



