NEMATODA TN THE COLOMBO MUSEUM. 91 



NEMATODA IN THE COLLECTION OF THE COLOMBO 

 MUSEUM. 



By Dr. 0. VON LiNSTOW. 



(^Gottingpn.) 

 With two Plates. 



^T^HE small collection of endoparasitic Nematodes here de- 

 -^ scribed contains representatives of twenty-two species, of 

 which thirteen are new and one is made the type of a new genus, 

 Ctenocephalus. 



The following is a list of the species recorded, together with 

 their hosts : — 



PAGE 



1. Ascaris rotundicaudata, n.sp., from Calotes ophiomachus ... ^ 92 



2. A. ceykmica, n.sp., from Haliastur indus and Poliaeltis 



ichthyaelus ... ... ... 92 



3. A. hracliyura., n.sp., from Calotes versicolor ... 93 



4. A. quadrata. n.sp., from Crncod'dus porosus ... 93 



5. A. mystax, Zed., from Cam's familiarls and Felis pardus... 94 



6. A ^vHulorum, Goeze, from Bos tndicus ... ... 94 



7. Physaloptera varani, Parona, from Varanus hengalensis... 95 



8. Physaloptera^ spec. ? from Calotes versicolor ... 95 



9. Spiroptet'a deniuta, n.9.p., irovaSus cristatus ... 95 



10. S. triangubtm, n.sp., from Calotes ... ... 96 



11. S. obtusa, Had., from Mus decumanus ... ... 96 



12. S. bufonis? S>tos^ich,irom Bufo melanostictus ... 96 



13. ffeterakis trilubium,n.sTp., irom Centropus sinetisis ... 97 



14. H. anomala, n.sp., tvora Tropido7iotvs piscator ... 97 



15. Sti'ongylus pigmP7itatus,n.sp., iroia Lepus nigricoU/s ... 98 



16. Cylichnostomn'v, tetracanfhiim (Mehlis). from Equus cabal- 



lus ... ... ... ... 99 



17. Triodontophnrus serratus. Looss, from Erjuus cahallus ... 99 



18. Knlieephalus iii/lleyi, n.sp., from Vipera nisseUi and Colu- 



ber h plena ... ... ... 99 



19. Oxyuris poculuni, n.sp., from Equus caballus ... 101 



20. 0. acanthura, n.sp., from Calotes versicolor ... 101 



21. Ctenocephalus tiara, Von Linstow, from Varamis benga- 



lensis and Varanus salvator ... ... 102 



22. Filaria, vivipnra, n.sp., from Corvtts splendens ... 103 



Ascaris. 



The mouth is surrounded by three lips, of which the dorsal is 

 placed symmetrically across the dorsal middle line, while the 

 two ventro-lateral lips abut upon the ventral middle line ; the 



P 25-03 



