1910.] FROM KERIMBA ARCHIPELAGO. 169 



grisea and Synapta glabra. The spicules and the calcareous ring 

 are very similar in both species. 



The calcareous ring consists of fifteen pieces. Each of the five 

 rarlial pieces has abroad anterior prolongation which is perforated 

 by a small hole. The ten inter-radial pieces are prolonged in front 

 as short rod-like processes. 



The spicules agree with Semper's figures. 



Total length of anchor 315 /.(. 



Total length of anchor-plate 225 /j. 



Diameter of miliary granules 15 p. 



General distribution. Bohol, Fitzroy Is., Queensland, Indian 

 Ocean. 



CUCUMARIA SEMPERI Bell. 



Cucumaria semperi Bell, 1884 (17); Lampert, 1885 (18); 

 Theel 1886 (20). 



One specimen from Station "VII. South of Pekawi. Length 

 45 mm.; breadth 15 mm. 



There is nothing to add to previous descriptions and to my 

 notes given in the report on the Mergui Holothurioidea. 



General distribution. Port Denison, Torres Str., Mergui. 



Cucumaria turbinata Hutton. 



Labidodesmus turbinata Hutton, 1878 (13). 



Cucumaria turbinata Lampert, 1885 (18). 



(?) Cucumaria (Labidodesmus) turbinata Theel, 1886 (20). 



Cucumaria (?) turbinata Dendy, 1897 (27). 



Cucumaria turbinata Pearson, 1903 (29). 



One specimen from Station VII. South of Pekawi. Length 

 48 mm. ; breadth 13 mm. 



I have already given a full description of this species in the 

 report on the Ceylon Holothurioidea (29). In the present 

 specimen the body has not the same shape as in the Ceylon 

 specimen. It is evidently in a contracted condition so that the 

 tapering anterior end which was characteristic of the Ceylon 

 specimen is not shown. 



The whole of the body has a brown colour. The pedicels are 

 black and are arranged in five double rows at both ends of the 

 body. In the central region the tube-feet also spread over the 

 inter-ambulacra and are more numerous on the ventral surface. 



The tentacles are absent. There is one Polian vesicle and 

 the stone-canal. There are two respiratory trees (see text-fig. 13, 



In addition to the deposits in the general integument which 

 have been already described in the Ceylon Report, there are well- 

 developed tables in the pedicels. These tables are long and narrow 

 and are prolonged into two arms (text-fig. 14 A, p. 171). In the 

 centre are four holes and at the end of each arm there are two or 

 three holes (text-fig. 14 B). From the centre of the table arises a 

 short tower having one cross-beam and being surmounted by a few 



