318 ECHINODERMA OF THE InDIAN MuSEUM, PART VII. 



ments ; P^ is 6 mm. long. The carination of the earlier segments is very strong 

 on PP5-7, but nearly or quite obsolete from that point onward. 



The colour is flesh-colour, pvu'ple at the articulations ; the cirri are yellow. 



Locality. — Sotit/iiresf of the month.'i of tie Irrairaddy River; " Investigator " 

 Station 387 (15° 25' N lat., 93° 45' E. long.); 49—40 fathoms. -^One specimen. 



Remarks. — This new species, while in general habitus perhaps most nearly 

 resembling H. savignii, differs markedly from that form in the strong carination 

 of the earlier segments of the lower pinnules, and in the smaller dorsal spines 

 on the cirri, which begin much further from the centrodorsal. 



It differs from H. cotnpta in its more slender cirri which have more prom- 

 inent spines, beginning further out, and in the comparatively large size of P.,. 



From H. bengalensis it differs in its longer and more slender cirri which 

 have longer segments, not developing spines until much further from the 

 centrodorsal. The number of cirrus segments is somewhat greater than in any 

 of these species. 



From H. brockii it differs in the smoothness of the lower pinnules, and 

 from H. singularis it may readily be distinguished by the large size of P., as well 

 as by the greater number of cirrus segments. 



HETEROMETRA BENGALENSIS. 



Localities. — 0§ Gopalpore; 25 — 28 fathoms. — Five specimens. 



Off Gopalpure ; 30 — 38 fathoms. — Ten specimens. 



'I India. — Two specimens. 



Remarks. — Of the five specimens dredged in 25—28 fathoms off' (_;oj)alpt)rc 

 one has fourteen arms 80 mm. long; one of the four llBr series is 2, the other 

 three being 4 (3+4); the cirri have 34-41 segments; the colour is white, the 

 iirticulations banded with ])urple; the cirri are white, the distal part purple 

 dorsally. Three of the specimens have each seventeen arms 80 mm. long, 

 seven lIBr series being present in all cases; one has all the IIBr series 4 (34-4); 

 tlie cirri have 31 segments; the colour is white with a row of small brown spots, 

 in jiairs, on the sides of the proximal third of the arms; another has one of the 

 IIBr series 2, six being 4 (3-|-4) ; the cirri have 30 — 33 segments and are 20 ram. 

 to 25 mm. long; the colour is white, with occasional blotches of brown on the 

 arms; the third has two of the IIBr series 2, five being 4 (3+4); the colour 

 is white, the cirri and well separated regular narrow bands on the arms bein.n 

 purple. The fifth specimen has nineteen arms 80 mm. long; one of the IIBr 

 series is absent ; the cirri are XVIII, 28^32, 20 mm. long ; the dorsal pole of the 

 centrodorsal is flat. 3 mm. in diameter: the colour is white, the cirri, narrow 

 bands on the arms, and a series of small regular spots on the proximal third of 

 the arms, brown. 



Of the ten examijles dredged in 30—38 fathoms off' Gopalpore two have 

 beventeen arms, three have eighteen arms, three have twenty arms, and two 



