NEMATODE PARASITES OF BIRDS 



189 



Female 12 to 21 mm. long by 170 to 260> wide. Buccal cavity 50 

 to 60/a, esophagus 2.4 to 3.6 mm. long. Anus (fig. 259<g) 90 to 

 ISO/x from tail end. Vulva 1.8 to 2.9 mm. from cephalic end, salient, 

 limited by 4 or 5 large nipple-like prominences formed by the cuticle 

 and usually arranged cross-wise. Eggs 46 to 57/u, long by 30 to 33/x 

 wide. 



Life history. — Unknown. 



Distribution. — Africa (Dahomey) . 



The host and the character of the cuticular formation around the 

 vulva appear to be the only differences between the female of this 

 species and that of H. Ihuillieri, the male of the latter being un- 



Fig. 259. — Hadjelia inermis. a, Male tail as usually seen (most posterior 



PAPILLAE HIDDEN) ; b, MALE TAIL STRAIGHTENED OUT; C, LEFT SPICULE", d , RIGHT 

 SPICULE ; e, FEMALE TAIL. AFTER GENDRE, 1922 



known. Vulvar prominences or "papillae" have been found to 

 vary in number and constancy of appearance in species of othei 

 genera (see Heterakis isolonche, p. 65). There is a possibility that 

 this species and that of Seurat may prove identical. 



HADJELIA PARVA Gendre, 1922 



Host. — Primary : Tracltelotis sencgalensis; secondary : Unknown. 



Location. — Gizzard. 



M ' orphology .—LladjeUa (p. 187) : Male 5.5 inm. long by 180/x 

 wide. Buccal cavity 33/* long; first part of esophagus 240//,, second 

 part 1.66 mm. long. Cloacal aperture 110/i from posterior end. Six 

 pairs of pedunculated papillae (fig. 260r<) on large caudal alae. 

 Spicules unequal, the left 1.29 mm., the right 240/i. long. 



