NEMATODA IN THE COLOMBO MUSEUM. 93 



Cuticula annulate ; lips with large intermediate lips without 

 denticulations (Zahnleisten ) ; the inner pulp is produced forwards ; 

 the dorsal lip is 0'099 mm. broad, 0*073 mm. long ; the tail end is 

 conieally attenuated. 



The male is l"22 mm. in diameter, the very short tail measures 

 only 0'2'2 mm., the long cirri measure 5'53 mm. 



The female has a diameter of I'oO mm. ; length of tail, 0*32 

 mm. ; spherical thick-shelled eggs, 0*062 mm. 



3. — Ascaris brachyura^ n.sp. 

 PL I., %. 3. 



Habitat : intestine of Calotes versicolor, Dum. et Bibr., Colombo. 



Cuticula broadly annulate • lips with tooth-rows, the denticles 

 high and acute: intermediate lips absent; dorsal lip concave 

 in front, 0"176 mm. broad, 0"097 mm. long ; papillae large, 

 obliquely placed ; body slender, tail very short and rounded ; the 

 oesophagus extends over ^^ to yV of the body length. 



The male has a length of 31 "6 mm. and a diameter of 0*91 mm. ; 

 the tail has a length equal to ^^y of the body, and carries a very 

 fine style-shaped process ; the falciform cirri have rounded ends 

 and measure 0*62 mm. ; at the caudal end on each side there are 

 22 prae-anal and two post-anal papillae. 



The female attains a length of 34*3 mm. and a width of 0*86 mm. ; 

 the tail is 3^0 ^^ ^^^ entire length, and is destitute of a styliform 

 process at the end ; the vulva lies somewhat in front of the 

 mid-region of the body, dividing the latter in the proportion of 

 3:5; the reproductive organs leave the anterior third of the 

 body free, and behind ^^ ; eggs were not mature. 



4. — Ascaris quadraki, u.sp. 

 PI. I., tig. 4. 



Habitat : stomach of Grocodilus porosics, Gray, Bolgoda. 



There is only one specimen in the collection, an immature 

 female, but the formation of the lips is so characteristic, and 

 diverges so much from that of the other Nematodes known from 

 African and American crocodiles, that it is possible to diagnose 

 the species. 



The cuticula is finely annulate ; lips without teeth and without 

 intermediate lips ; the dorsal lip is 0*132 mm. broad, 0*088 mm. 

 long, quadrangular, with front angles rounded ; the pulp (jmlpa) 

 is produced into two quadrangular projections. The length 

 amounts to 15'8 mm., the diameter to 0*55 mm. ; the oesophagus 

 occupies ^ of the entire length y a ccecum arises from the intestine 



