672 



Memoirs of the Indian Museum. 



[Vol. V, 



are uniannulate ; somites II, III, XXIV and XXV biannulate ; the twenty somites 

 IV-XXIII are complete with three rings. 



The six eyes are disposed in two close sub-parallel rows, as is the case with 



G. com-planata. The first and small- 

 est pair lie in ring 3. The second and 

 larger pair occur in ring 4 but may be 

 shifted somewhat further back and 

 appear to extend into ring 5. The 

 third pair are usually one ring behind 

 the second, that is in ring 7. 



The colour in spirit is pale buff 

 or pale grey, being marked with some 

 three longitudinal rows of dark brown 

 pigment patches, one in each half of 

 the body and one median in position. 

 The patches are arranged metameri- 

 cally, marking the middle ring of each 

 somite. Harding speaks of there 

 being traces of four longitudinal brown 

 stripes on the dorsal surface, but no 

 trace of such stripes was shown in the 

 specimens examined. 



In structural respects the body- 

 wall presents no noteworthy feature, 

 being constructed in a similar manner 

 to that found in other Glossosipho- 

 nids. 



The mouth lying at the level 

 nearly between the anterior two pairs 

 of eyes leads into the pharyngeal 

 sheath with the pharynx, which ex- 

 tends over about four somites VIII- 

 XI. The salivary glands are closely 

 aggregated into a compact group in 



Fig. 5.— Diagram showing the organization of Glosso- each half of the body, the group lying 

 siphoma ceylanica, Harding, as seen from the dorsal , . ii .... ., _^ .. 



side. Index letters as in fig. 1. symmetrically, within somites X and 



XI. The oesophagus represents a 

 short passage connecting the base of the pharynx with the crop. The crop, differ- 

 ing from the general form of this genus, possesses seven pairs of lateral diverticu- 

 lae, a pair arising in the middle of each of somites XIII-XIX. All of the first 

 six pairs are usually bilobed distally, and each of the seventh pair is reflected pos- 

 teriorly and extends into somite XXII, giving off four secondary lateral diverticu- 

 la e, which come off metamerically in somites XIX-XXII. The stomach is pro- 



XVII 



XVIII 



XXII 

 XXIII 



xxiv~ ~~~_ 



XXV - XXVI I 



/ — ~ - en. 



an. 



