Dr. L. Orley o)i Nematodes. 317 



XIV. Genus Atractis, Duj. 



Lips inconspicuous ; two dissimiUar spicula ; three prreanal 

 papillae. 



Atractis clactt/lura, Duj., is the onlj representative of the 

 genus in this collection, from Testudo grceca. 



XV. Genus Spiroxis, Schn. 



Mouth provided with two lips ; two dissimilar spicula of 

 large size. 



Spiro.vis contorfa, Schn.(?), is the only representative of the 

 genus in this collection, from Enu/s eui-ojxea. 



XVI. Genus Strong ylus, Rud. 



Doclnniiis, Moliii. 

 Ancylodomum, Diibini. 

 Sclerostomn, Rud. 

 DiciplianocepliaJus, Dies. 



Mouth-parts various in form ; buccal cavity with chltinous 

 teeth 5 two similar spicula. Bursa funnel-shaped. 



No. Species. Species of host. 



1. striatus, Zed. Erinaceus curopoeus. 



2. trigouocephalus, Rud. Cauis famiHaris. 



3. annulatus, Sieb. „ hipus. 



4. dispar, Dies. Fells concolor. 



5. clathratus, Baird. Loxodonta africana. 



6. sipunculiformis, Baird. Ehismodon indieus. 



7. filaria, Rud. Ovis aries. 



8. micrurus, Melilis. Sus scrofa. 



9. paradoxus, Mehlis. ,, „ 



10. arraatus, Rud. Equus caballus, 



11. tetracanthus, Dies. ,, „ 



12. tracliealis, 8ieh. Perdix cinerea. 



,, ,, Galhis gallinaceus. 



13. nodularis, Rud. Anser cinereus. 



14. mucronatus, Baird. Phyiuatura palluma. 



15. auricularius, Rud. Eana temporaria. 



C. Holomyarii, Schn. 



Of the Holomyarii Schneider enumerates eight genera, of 

 which Anguillula, Mermis^ and Gordius ure not to be reo-arded 

 as rightly placed among them, and two genera are not'repre- 

 sented in tliis collection ; on the other hand, I add to the 

 group the genus Tri'chodes, lately characterized by Linstow. 

 Tlius we have four genera of Holomyarii represented in the 

 collection. 



