84 Clark — New Recent Crinoids from the Indian Ocean. 



squarish aliout the eighteenth and in the terminal part longer than broad ; 

 P;j al)ont In mm. long, and P4 16 mm. or 17 mm. long, reseml)ling P2; 

 Vr, similar, 1:5 mm. long; Pg similar and of the same length ; P7 and the 

 following pinmiles 12 mm. long witli the joints in the proximal two-thirds 

 slightly expanded laterally; in the next four or five the pinnules decrease 

 in length to S nun., while the expansion of the joints becomes more pro- 

 nounced, beginning on the second, reaching a maximum on the fourth or 

 fifth, then gradually dying away distally; distal j)iiinul('s stout as in the 

 other species of the genus, 10 mm. long. 

 Color (in spirits). — Yellowish brown. 



Family ANTEDONIDtE. 



Genus EUMETRA A. H. Clark. 



Eumetra indica sp. nov. 



Type. — Cat. No. 4(t, Indian Museum; Port Blair, Andaman Islands. 



Centro-dorsal conical, 3 mm. broad at the base and 3 mm. high, the 

 cirrus sockets arranged in six closely crowded alternating rows. The 

 centro-dorsal as a whole resembles closely that of Hathrometra. 



Cirri about i.xx, all lacking. 



Radials extending slightly beyond the edge of the centro-dorsal, diverg- 

 ing at an acute angle in the angles of the calyx; i Bn somewhat trape- 

 zoidal, about three times as broad as long, not in contact basally; i Br2 

 (axillary) rhombic, the free lateral edges rather longer than those of the 

 I Bri, forming with them somewhat more than a right angle; synarthrial 

 tubercles moilerately developed. 



Ten arms, about 60 mm. long; first brachial longer outwardly than in- 

 wardly, slightly incised by the second, not united interiorly, but the inner 

 edges diverging at approximately a right angle; second l)rachial nearly 

 twice as large, irregularly quadrate, with a rounded posterior })rojection 

 incising the first; third and fourth brachials (syzygial pair) about as long 

 as broad ; next eight or nine brachials slightly wedge-shaped, half again 

 as broad as long, then becoming almost or quite triangular, about as long 

 as broad, and further out on the arm wedge-shaj^ed again and longer than 

 broad. Syzygies occur between the third and fourth, ninth and tenth, 

 and fourteenth and fifteenth brachials, and distally at intervals of three 

 obli(pie muscular articulations. 



Pi al)out 6 mm. long, very slender and delicate, somewhat stiftened, 

 with about nine joints, the first about as long as, or slightly longer than, 

 broad, the second and third twice as long as broad, the following gradually 

 increasing in length and becoming exceedingly elongated distally ; V-z about 

 10 mm. long, proportionately stouter than Pi and stifi'er, with fifteen 

 joints, the first squarish, the second slightly longer than broad, the third 

 twice as long as broad, the remainder three to four times as long as broad ; 

 Pa 8 mm. long with fifteen joints, similar to P2 but slightly less stout; P4 

 like Ps; P5 5 mm. long, slightly more slender than P4, with ten joints, 

 which have slightly everted spinous distal ends ; following pinnules sim- 

 ilar ; the distal pinnules are lacking. 



