316 Dr. L. Orle.y on Nematodes. 



form of a slit leading into a circular month-capsule ; two 

 similar spicula ; seven to eight prasanal papillffi. 

 Two species occur from two hosts, 



No. Species. Species of host. 



] . microceplialns, Dnj. Emys guttata. 



2. elegans, Zed. Murseua anguilla. 



B. Meroniyarii^ Schn. 



Of the Meromyarii Sclmeider enumerates ten genera, of 

 which hepfodera and PeJodera {\io\\\-= Bhnbditis^ Di^'O ^I'e not 

 to be regarded as rightlj placed among them ; and Lahiduris 

 and Dermaioxys are not reprcsentctl in the collection. 



XI. Genus Nematoxys, Schn. 



Mouth provided with three very small lips; two similar 

 spicula. Body covered with many papillre both in male and 

 female. 



Nematoxys ornatas^ Duj., is the only representative of the 

 genus in this collection, from Puma escidenta. 



XII. Genus Oxysoma, Schn. 



Mouth provided with three lips, asymmetrical. Two similar 

 spicula ; three pra;anal papillaj constant. 



No. Speci&s. Species of host. 



1. hrevicaudata, Zal. Bufo variabilis. 



,, ,, Augiiis fragiHs. 



2. acumiuata, Rad. liana temporaria. 



XIII. Genus OxYURis, Rud. 



Asceiris, Rud. (in part). 

 Passalurus, Duj. 

 Orolaimus, Uuj. 

 Stychoceplialus, Dies. 



Lips very inconspicuous ; two dissimilar spicula. Bursa 

 present or absent. 



No. Species. Species of host, 



1. vcrroicularis, Rud. Homo sapiens. 



2. obvelata, Rud. Mns musculus. 



3. ambigua, Rud. Lepus timidus. 



4. tetraptera, Nhz. Mus sylvaticus. 



5. curvula, Rud. Equus caballus. 



