496 N'0T1'> ox NEMADOTES OF THE GENUS PHVSALOPTERA, 



(iymnodaetyltis laturns, Varanus sp., and Hinulia sp. ; and among Ophidia, 

 "black snake" (5 colloctions), "whip snake" (2 collections) "brown snake" (1 

 collection), and "snake, Fliudei's Is." (2 collections). None of these collections 

 of Physaloptera has been recorded hitherto, and all the specimens still await 

 identification. 



The present work was undertaken with the intention of making a report 

 on them, and on various specimens which have from time to time been brought 

 under my notice from dissections of reptiles in the Zoology Department' of the 

 Sydney University. But while endeavouring to gather together the scattered 

 and fragmentary descriptions of known species, it has seemed to me that the 

 information so collected should be made more readily available to workers tlian 

 it has been hitherto, and that a brief general survey of the Physaloptera of 

 reptiles would be useful. 



With this end in view, I have compiled a systematic index of all the 

 known reptilian hosts, with the species parasitic in each, grouped under the 

 different orders of reptiles in which they have been found. Every recorded 

 species of the parasites has been included, whether the original description is 

 well defined or doubtful, and without regard to the question of synonymy. These 

 matters will be dealt with later, when the groups are considered in detail. Rut 

 the hosts have been recorded, as far as possible, under the names accepted in 

 the British Museum Catalogue of Reptiles (1885-1896), since many of the 

 early sjTionyms, under which the hosts appear in the original records are not 

 readily recognisable, and are difficult to trace. However, those names which 

 it is impossible to identify now are given in the original form, though they 

 must be regarded as nomina vu-da. This is the case with many of the hosts 

 enumerated by Molin, including most of Fitzinger's species. 



The bibliographical catalogue, wliich follo^vs the host list, is as full as it is 

 possible to make it witli the literature available to me; but many of the scientific 

 periodicals required are not possessed by our libraries, so the catalogue must 

 necessarily be regarded as incomplete. 



As the new genus Thuhuvaea, which was established by Seurat in 1914. is 

 very closely related to Physaloptera. T have added it to the catalogue. The 

 single species, Thjibunaea pudica, is a reptilian pa.rasite, being found in the 

 stomach of a Chnmaeloon. and in two snakes. Cera^ta^ vipara L. niid Srhteyx 

 nfficwalix Laur., in Nortliern Africa. 



TJost list for Physaloptera parasitic in IicptiJeK. 



Chelonia. 



P. contorta. Chrysemys reticulata Daud.. Chrysemys scripta Shoepff.. 



Cistuflo Carolina Ijinn., Cinosternum pennsi/lvaniiiciim 



Wagl. 

 P. sp. Emys venusta Gray. 



Crocodti.ia. 



P. mucroiiala. Allifjolor missisipiens-is Gray. Caiman tiiger Spix. 



Opiiidta. 



P. ai)hrrriata. Tropidovotiix tessellatus Laur., Ciconia nlba (pscndo 



panisite, swallowed with reptiles). 

 P. abjecla. Zamciisis flageUifurmCt Laur. 



P. affinis. Psammophis sibilans Linn. 



P. antarctica. Acanthnphis antarctiois Shaw. 



P. cnlubri. Coronella awtria^a Laur. 



