408 



Dr. 11. A. RivlisoM 



sjilieiit .njij^lo^ |if.stfriorly ((1^:;. 2, a.). Tlie dorsal lip (Ho-. 2) 

 lias a traii><veise (liamefer of about ()*47 mm., and carries a 

 jiair of di)nl)lc papillui at the ends of two l)liiiitly rounded 

 outer lobes of the pulp. In each ventro-lateral lip these two 

 outer lobes of the pulp are unequal, the lateral lobe bein^ 

 considerably longer than tlio ventral lobe. The latter carries 

 a laroc double papilla, while that of the former is small ami 

 sini])le. The neck is wider than tlie head. The oeso|)ha(rii.s 

 is very short {about 4 nun.), somewhat club-shaped, witii a 

 jnaximnni thickness near the posterior end of 0*1 mm. It is 

 muscular throughout aiid has no bulb or ventriculus. There 

 are no intestinal or oesophageal caica. The nerve-ring is 

 situated at 1-1*15 mm. from the anterior end. The tail in 



F\2. 2. 



C.r 



O-l mm. 

 Asca}-is dasypodina. Dorsal lip, external aspect. 



n., posterior angle of dentigerous ridge ; d.r., dentigerous ridgo ; 

 p., papilla. 



both sexes is bluntly rounded, and carries a small terminal 

 spike. 



In the male the caudal end is curled ventrally in the usual 

 nianufr. The tail is extremely short (0"15 mm.). The 

 spicules are equal and short, measuring 1*25 mm. in length. 

 r)wing to the fact that only one male is available, it has TU)t 

 been found ])ossible to obtain a ventral view o£ the caudal 

 end, but, as far as can be made out, there are nine pairs of 

 ))ostanal papillae, of which six ))airs are subventral and lie 

 (li.se together in the short space between the cloaca and the 

 tail-spike ; two ])airs are laterally situated at about the level 

 of the cloaca, and of these the anterior is considerebly larger 



