384 AUSTRALIAN FREE-LIVING MARINE NEMATODES, 



a distinct tessellation. The rectum is equal in length to the anal 

 body-diameter. The ventral gland is situated in front of the 

 cardiac collum ; the duct is naiTOw and the ampulla elongated. 

 The lateral fields are one-fourth as wide as the body. The 

 anterior half of the tail is conoid; thence to the naked, somewhat 

 swollen terminus it is cylindroid and an eighth as wide as at the 

 anus. The caudal glands appear to be situated in front of the 

 inconspicuous anus. The vulva is depressed; the vagina is one- 

 half as long as the body is wide. The refiexed ovaries reach 

 nearly the whole distance back to the vulva. 



Found in sand near low-tide mark. Port Jackson, Kew South 

 Wales, Australia. 



Anticoma LATA, n.sp. — I have not seen the female of this 

 species, which seems to be simply " one more," — another tiresome 



addition. — — ^ — ^ ^ — ^ 2-6 mm. The cuticle is not marked 



by strife, but bears short and inconspicuous hairs throughout. 

 The convex-conoid neck ends in a truncate head bearing ten setse 

 each one-third as long as the head is wide and all arranged opposite 

 the middle of the pharynx. The two longitudinal rows of four closely 

 approximated pectoral hairs occur on the neck at a distance from 

 the anterior extremity equal to one-fourth the distance from the 

 anterior extremity to the excretory pore. The obscure lips seem 

 destitute of papillse. Lateral organs, in the form of transverse 

 slits one-half as long as the head is wide, occur on the head at a 

 point as far behind the setse as the latter are behind the anterior 

 extremity. Eyes are lacking. The pharynx is very small and 

 simple, being conoid in shape and in its widest part not above 

 three micromillimetres wide. The cylindrical anterior half of 

 the oesophagus is one-half as wide as the corresponding part of 

 the neck; behind the nerve-ring, however, the oesophagus begins 

 to expand in size and becomes in its posterior part one-half as 

 wide as the base of the neck. When the oesophagus is vieAved in 

 optical section its lining is distinctly to be seen. The intestine, 

 which is two-thirds as wide as the body, is separated from the 

 oesophagus by a shallow but distinct constriction; the granules con- 



