170 



BULLETIN 140, UNITED STATES NATIONAL MUSEUM 



were undoubtedly amphids. The cervical papillae could not be 

 located. 



Male about 6 mm. long by 250> wide. Buccal cavity 58/* deep; 

 total length of esophagus 2 mm. Caudal alae (fig. 243a) outspread, 

 280/u long, their span 230/*; they bear coarse transverse striations. 



Fig. 242. — Cyrnea colini. Head, a, Ventral ; b, fkont ; c, oblique 



LATERAL VIEW. ORIGINAL 



Cloacal aperture about 115/* from posterior end. Ten pairs of pedun- 

 culated papillae forming an unbroken series, the 4 most posterior 

 pairs slightly smaller than the others; the seventh pair from the 

 posterior end lies at the level of the cloacal aperture. Spicules very 

 unequal, the left 2 mm. long by 12/t wide, the right 365/* long by 24/t 



Fig. 243.' — Cyrnea colini. a, Male tail; b, female tail; c, ovejector. (Sgalb 



FOR 6 AND C THE SAME.) ORIGINAL 



wide. Gorgeret delicate; the left side (68/* in length) is longer than 

 the right side. 



Female 14 to 18 mm. long by 365/* wide. Buccal cavity 75/* deep ; 

 first part of esophagus about 280/* long; second part of esophagus 

 about 2.5 mm. long. Tail (fig. 2436) 33*2/* long. Vulva (fig. 2436) 



