134 E. C. PUNNETT. 



b — e). The organ is ovoid in shape, its dorso-ventral dia- 

 meter being the larger. The head slits reach nearly to the 

 brain. 



A frontal organ is present. 



Eyes are absent. 



The head glands are diffuse, and soon become continuous 

 with the cutis glands laterally. 



Cerebratulus ulatif ormius, n. sp. 



The single specimen obtained is rather flattened throughout 

 and about twice as wide as deep. The side folds are marked. 

 The length is just over 6 cm. The mouth commences just 

 behind the head slits, which end abruptly shortly before 

 the commencement of the former. The proboscis pore is 

 not terminal, but is found on the ventral surface 1 mm. 

 behind the tip of the snout. No caudal appendage was ob- 

 served. Colour a uniform orange-red. The name bestowed 

 on this worm is derived from the native word " ulat," 

 which Mr. Bedford informs me is a term applied to such 

 creatures. 



The epithelium contains small unicellular unstaining 

 gland cells. The cutis shows the usual circular and longi- 

 tudinal muscular fibrillse. The composite cutis glands (fig. 

 26, cgl.) are well marked in the oesophageal region, but almost 

 cease posteriorly. 



The muscle layers are of the usual type, the outer 

 longitudinal being considerably the thickest, especially later- 

 ally, where the side folds are developed. There is no 

 diagonal muscle layer. 



The vascular system shows a large well-marked head 

 loop. The dorsal vessel leaves the proboscis sheath 2*5 mm. 

 behind the tip of the snout. 



The alimentary canal is of the usual type, the intestinal 

 diverticula commencing about 5 mm. from the tip of the 

 snout. The animal is remarkable in having food inside its 

 intestine, but the remains are too problematical to make it 



