NEMATODE PARASITES OF BIRDS 



255 



cal, only slightly projecting, in the lateral lines a little posterior to 

 the curve formed by the anastomosing of the cordons. 



Male 6.55 mm. long by 260/* wide. Tail (fig. 318 b) about 160// 

 long, about 1/40 of total body length. Cordons 610/x long. Caudal 

 alae membranous and transversely striated ; no subdivision into 2 con- 

 centric zones as in certain species of Acuaria. Four pairs of preanal 

 and 5 pairs of postanal papillae. Spicules (fig. 318 c and d) unequal 

 and dissimilar; the left 900//. long, flexible, the right 180//. long by 

 19//, wide, arcuate and robust. 



Female 6 to 12 mm. long by 360 to 400//. wide. Cordons 900 to 

 970/x long. Gedoelst describes a membranous expansion of the euti- 



Figs. 316-318. — E'chinuuia horrida. 316, Head end. After Schneider, 1S66. 317, 

 Head end. After Stossich, 1891. 31 S, Echinuria lepxoptili. a, Head end; 

 b, male tail; c, left spicule; d, right spicule (the small drawing showing 



ORIFICE AT FREE END DILATED ON PRESSURE) ; C, FEMALE TAIL. AFTER GeNDKE. 1926 



cula along the lateral lines of the caudal region, extending from a 

 point 50//. from the tail end and measuring 400/*, wide. Gendre does 

 not mention this; he states that the dilation of the body just ante- 

 rior to the vulva, as described by Gedoelst, is due to contraction of 

 the body. Anus 65 to 95//,, according to Gedoelst, or 50/t, according 

 to Gendre (fig. 318 e) , from tail end. Vulva 80 to 145//., according 

 to Gedoelst, or 210/*., according to Gendre, anterior to anus. Eggs 

 32/x by 20/*. 



Life history. — Unknown; probably involves intermediate stages in 

 other hosts; (see E. unrinafa, p. 246). 



Distribution. — Africa (Belgian Congo and Dahomey). 



ECHINURIA LONGEORNATA (Molin. I860) Cram, 1927 



Synonyms. — Dispharagus longeornatus Molin, 1860c; Spiroptera 

 ardeae-maguari* Molin, 1860; Acuaria longeornata (Molin. 1860) 



e Catalogue of Vienna Museum. 



