COLLECTION OF NKM iilKTBANS FROM SINGATORE. 117 



I'egeneration seems to the writer a subject better fitted for 

 experimental inquiry than for morphological speculation. 



Eupolia pholidota, n. sp. 



A single specimen of this worm was taken, and in the 

 preserved state measured 19 cm. in length. The posterior 

 two thirds or so were very slender, being barely half as thick 

 as the anterior portion of the worm, which was about 3 mm. 

 in diameter. The record of its appearance in lifetime shows 

 it to have been " white with reddish-black spots." The only 

 indication of such markings left are faint yellowish blotches 

 (fig. 7). These do not extend beyond the head furrow 

 anteriorly. 



The epithelium is high and in its outer portion lacks the 

 small granular cells which characterised that of the preceding- 

 species. The basement membrane (fig. 8, hm) is exceedingly 

 thick, and beneath it is a well-marked layer of longitudinal 

 muscle fibrils. The cutis glands are of the usual Eupolia 

 type. 



The muscular system presents no peculiarities. 



The vascular system resembles that described above for 

 E. melanogramma. The lacunoe round the cerebral organ 

 are, however, more complete, and the vessels forming the 

 buccal commissure (fig. 9, hhvc) are seen in section to pass 

 round the outer side of the cerebral organ instead of the inner 

 side as in the preceding species. 



In the alimentary canal the glandular tissue beneath 

 the oesophageal epithelium is com^Daratively thinner than is 

 usual in most members of the family. The oesophagus ter- 

 minates about 4"25 mm. from the tip of the snout. In the 

 intestinal region the lateral diverticula are small and there is 

 a deep ventral gutter. 



The proboscis is extremely slender. 



The generative sacs are full of spermatozoa, most of 

 which are ripe. Ducts are present. 



The excretory system commences at about '8b mm. from 



