Clark — New Recent Crinoids from the Indian Ocean. 77 



timate joint, moderately stout and moderately curved basally, becoming 

 more slender and less curved distally. 



Kadials about even with the edge of the centro-dorsal ; i Bn oblong, 

 about three times as broad as long, not in contact basally; iBr2 (axillary) 

 pentagonal, about twice as broad as long, the lateral edges about half as 

 long as those of the i Bri, making with them a very obtuse angle ; i Br 

 series and lower brachials with a slightly indicated rounded median cari- 

 nation. 



Arms 10, 65 mm. long, resembling those of C. informis, to which this 

 species is most closely related. 



Pf, absent; Pi small and weak, 4 mm. long with fourteen joints, the 

 first short, the second squarish, the following gradually increasing in 

 length, becoming twice as long as broad distally; joints in the distal third 

 with the distal edges armed with fine spines; P2 13 mm. long, stouter 

 tliau Pi, though of the same proportions, with seventeen joints, which 

 become squarish at the third and twice as long as broad terminally; 

 second and following with a few spines on the distal edge; P3 6 mm. long, 

 basally as stout as P2, but not tapering so rapidly, and therefore less deli- 

 cate distally, with fifteen joints, the distal elongated; Va 4 mm. long, not 

 so delicate as Pi, with ten joints; Pe 3 mm. long, following pinnules 

 increasing slowly in length, the distal pinnules being 7 mm. long, 

 slender, with elongated joints. 



Coloi' (in spirits). — Brown, the perisome darker. 



Family TROPIOMETRID^. 

 Genis CALOMETRA a. H. Clark. 



Calometra magnifica sp. nov. 



Type.—Q-At. No. 15A = ^V-^ Indian Museum; Malay Archipelago, 160 

 fathoms. 



Centro-dorsal hemisi^herical, the bare polar area convex, 2 mm, in 

 diameter; cirrus sockets arranged in two or three closely crow^ded irregu- 

 lar marginal rows. 



Cirri xx, 41-48, 40 mm. long; first cirrus joint short, the next two 

 about twice as broad as long, the following gradually increasing in length 

 to the fifth or seventh, which is about one-third broader than long; fol- 

 lowing joints similar to almost the middle of the cirrus, at which point 

 they begin to decrease gradually in length, being twice as broad as long 

 in the terminal portion ; at about the eighth joint the median portion of 

 the distal dorsal edge begins to project in a small A -shaped spine; this 

 very slowly increases distally, the whole dorsal surface of the joint becom- 

 ing rounded-earinate and rising somewhat at the same time, until in the 

 terminal third the cirrus joints bear broad spatulate carinate processes, 

 equal in height to about one-third their diameter; opposing spine tri- 

 angular, similar in shape and size to the spine on the preceding joint, 

 blunt, the apex terminal, arising from the distal two-thirds of the pen- 

 ultimate joint, about equal to half the diameter of the penultimate joint 

 in height; terminal claw conical, equal in length to the penultimate 

 joint, stout, slightly curved. 



