6 PROCEEDINGS OF THE NATIONAL. MUSEUM yoh.GQ 



these differ in number in certain species. For the present, at least, 

 it seems more advisable to adhere to the conception of the genus 

 Ascaridia as defined by Railliet and Henry (1914). 



Superfamily STRONGYLOIDEA 



Family STRONGYLIDAE 



Genus PROTERACRUM Railliet and Henry, 1913 



PROTERACRUM VENULOSUM (Rudolphi, 1809) 



Host. — Gapra hircus. 

 Location. — Intestine. 



PROTERACRUM COLUMBIANUM (Curtice, 1890) 



Host. — Oapra hircus. 

 Location. — Intestine. 



Genus ANCYLOSTOMA (Dubini, 1843) 



ANCYLOSTOMA CANINUM (Ercolani, 1859) 



Hosts. — Felis tigris and Canis familiaris. 

 Location. — Intestine. 



ANCYLOSTOMA BRAZILIENSE (Gomez, 1910) 



Host. — Panther {Felis, species). 

 Location. — Intestine. 



Genus STRONGYLUS Goeze, 1782 



STRONGYLUS EQUINUS ^ (Mueller, 1780) 



Host. — Equus cah alius. 



Location. — Unknown, presumably cecum or colon. 



STRONGYLUS VULGARIS (Looss, 1900) 



Host. — Equus cdballus. 



Location. — Unknown, presumably cecum or colon. 



STRONGYLUS VULGARIS Looss, 1900) 



Host. — Equus cdballus. 



Location. — Unknown, presumably cecum or colon. 

 Genus TRICHONEMA Cobbold, 1874 



TRICHONEMA NASSATUM le Roux, 1924 



Host. — Equus cah alius. 



Location. — Unknown, presumably cecum. 



Genus CYLICOSTOMUM Looss, 1901 



Subgenus Cylicocercus Ihle, 1922 



CYLICOCERCUS CATINATUS (Looss, 1900) 



Host. — Equus caballus. 



Location. — Unknown, presumably cecum. 



'The five species of horse strongyles were determined by Miss E. B, Cram of this 



division 



