320 ECHINOBERMA OF THR TNDIAN MUSEUM, PART VII. 



17 mm. long, no stouter than P, basally but tapering more gradually, very 

 slender, slightly stiffened, witli thirty-four segments, of which the third is 

 about as long as broad, the fifth is lialf again as long as broad, the tenth twice as 

 long as broad, and the terminal three times as long as broad. P, is 18-5 mm. long 

 with thirty-one segments, resembling P, but just perceptibly stoutei'. P^ is 

 11'5 mm. long witli twenty-one segments, as stout basally as P, but tapering 

 more evenly. P. is 6-5 mm. long with sixteen segments. P, is 5 mm. long 

 with twelve segments. P,, is i 5 mm. long with twelve segments, not stiffened 

 like the preceding pinnules ; the following pinnules are similar ; the distal pin- 

 nules are 7 mm. long with eighteen segments. 



The rays and division series are moderately separated. 



In colour the dorsal pole of the centrodorsal and the division series and 

 arm bases as far as the third brachial are light greyish, thickly sprinkled with 

 minute spots of white ; the first syzygial pairs and the adjacent portions of the 

 second and fifth brachials are blackish brown ; the remainder of the arms is 

 white, with narrow black bands at intervals of about 5 mm. ; the entire ventral 

 perisome is olive green with numerous small white spots ; the cirri are white. 



Locality. — Off Gopalpore; 30 — 38 fathoms. — Five specimens. 



Remarks. — -The five specimens have thirty-four, thirty-six , thirty-nine, forty 

 and forty- two arms. 



This sj)ecies appears to be most nearly related to D. flagellata, from whieli 

 it may be easily distinguished by the much longer and much more slender 

 proximal pinnules, which are composed of very much longer .segments, the 

 small size of P^, which is as small as P, instead of being as large as P.^ or P,., and 

 by the entire absence of the rugose appearance so characteristic of D. flagellata. 



DICHROMETPvA PROTECTUS. 



Localities. — Cinque Island. Audamans. — One specimen. 



" Investiciator " Station 91 : 28 jathoins. — -One specimen. 



Northeastern Ceylon: Entrance to Palk Straits, Point Pedro hearing SSE., 

 distant about 3 miles; 6 — 8 fathoms; sandy bottom.. — Four specimens. 



Remarks. — All the specimens recorded above are small and immature ; that 

 from Cinque Island has fifteen arms ; the colour in life is recorded as having 

 been in the "centre whitish, outer lialf of arms deep orange brown." The 

 example from Station 91 has twelve arms 35 mm. long. Of the four specimens 

 from Palk Straits one has nineteen arms about 50 mm. long, with cirri 15 mm. 

 long; one has twenty-one arms about 45 mm. long, and cirri XII, 15 mm. 

 long; another has twenty-six arms, two of which spring dii'ectly from IBr 

 axillaries; all the extra axiliaries are external: tlie fourtli has twenty nine arms; 

 IIIBr series are developed externally on all but one of the fIBr series ; tlie arms 

 measure 15 mm. and the cirri 12 mm. in length. 



