242 



Mr. F. Piiilpot on a new 



XXXI. — On O-walilocriiz a wisei, a new Nematode from the 

 " Saki " MonLij. By F. Philpot, M.Sc* 



A FEW specimens of a sinnll bui^afce nematode, sent to 

 Piofessor Lei per by Dr. Wise, now Surgeon-General of 

 Trinidad, were collected t'roin the " sackawinki " monkey in 

 British Guiana, belong apparently to an undescribed species 

 of the genus ihtcaldocruzia, Travassos, which has hitherto 

 been recorded only from re[)tilian and amphibian hosts. 



Fif?. 2. 



Fijr. I. 



Fig. 1. 

 Fig. 2. 



-Head of female. 

 -Tail of feiuale. 



The parasites are veiy small, delicate forms, tlie female 

 measuring 9'8 mm. by 0'06 mm., the male G*4 mm. by 

 0'05 mm. The head is surronnded by a cuticular collar of 

 equal diameter throughout its length and sliowing transverse 

 markings ; in the female it measures 004:7 mm. long by 

 0'035 mm. broad, in the male 043 mm. long by 020 mm. 

 broad. The mouth-aperture is simple, surrounded by three 



* From the Ilelininthological Department, i^ondon F^cli ol of Tropical 

 ^tedicine. 



