Mr. H.J. Carter on Microscopic Filaridaj. 43 



Urolabes infrequens. PI. III. fig. 30. 



Female. The same as in the foregoing species, but a little 

 larger in every way. 



Alimentary canal and organs of generation the same generally. 

 Ova undergoing segmentation and the embryo developed in the 

 ovisac, but not liberated there. 



Ocelli the same in situation, but semi-opake and of a yellowish 

 colour throughout. 



Size. Undetermined. 



Male. Same as the female, but with a short curved tail, pre- 

 senting on each side of the inner curvature a membranous ex- 

 pansion supported on setaceous ribs, which extends from the 

 tip of the tail to some little distance above the anus. Organs of 

 generation the same as in the foregoing species ; form of testis 

 undetermined. 



Hab. Same. 



Loc. Island of Bombay. 



Urolabes ocellata, n. sp. PI. III. fig. 31. 



Female. Linear, cylindrical, unstriated, ocellated, diminishing 

 gradually towards the head, w r hich is obtuse and provided with 

 four short linear cirri ; also diminishing gi-adually towards the 

 tail, which is short, somewhat curved, and furnished with a 

 pointed digital termination. Mouth, vulva, and anus situated 

 as in the foregoing species. 



Alimentary canal the same, but with the oesophageal sheath 

 more bulbous posteriorly, and no globular dilatation of the in- 

 testinal sheath posterior to it. Hepatic organ the same. 



Ocelli the same as in U. erijthrops, but smaller, less rich in 

 colour, and a little nearer the head. 



Size. About l-32nd of an inch long. 



Male. The same as the female, with the exception of the 

 difference in the generative organs, which are the same as those 

 of the foregoing species ; form of testis undetermined. 



Hab. Same. 



Loc. Island of Bombay. 



Urolabes barbata, n. sp. PI. III. fig. 32. 



Female. Body the same as the last, but much longer. Head 

 furnished with four linear, short cirri. Tail short, somewhat 

 curved, furnished with a short, pointed, digital termination. 

 Mouth and anus the same. Vulva situated much posteriorly to 

 the middle of the body, about the junction of the middle with 

 the anterior third of the posterior half. 



Alimentary canal the same as in the foregoing species, but the 

 intestinal sheath terminating less abruptly upon the commence- 



