dark — Seventeen New East Indian Crinoids. 27 



Eudiocrinus pinnatus ap. nov. 



The centrodorsal is discoidal, the tlat dorsal pole 2 mm. in diameter; 

 the cirrus sockets are arranged in two marginal rows. 



The cirri are xvn, 17-22, 10 nun. to 11 mm. long; all the segments 

 beyond the third arc subequal, none being quite so long as broad; the 

 fourth to the eighth or ninth have slightly prominent distal edges, espe- 

 cially dorsally. The cirri arc rather stout and arc of the same type as 

 those of E. variegatus. 



The live arms are about 75 mm. long; the brachials are unornamented, 

 and their distal edges are not produced. 



17' is 4 mm. long, with eleven segments, moderately stout, strongly 

 prismatic, evenly tapering to the tip, the distal border of the segments 

 sharply, though narrowly, earinate; Pi is 4.5 mm. lone, witli twelve seg- 

 ments, similar to IV; ]',, i< 11 mm. long, with seventeen segments, very 

 slender like the succeeding pinnules, though very stiff; the first two seg- 

 ments are slightly broader than long, the third and fourth half again as 

 long as broad, the following gradually increasing in length and becom- 

 ing distally three or four times as long as broad; the distal edges of the 

 third and following segments are produced and spinous; the pinnule 

 resembles the lower pinnules in certain of the more slender species of 

 Colobometra ; I'i is similar to l'„, 11 mm. long, with seventeen segments; 

 l'l, is similar to P3, 8 mm. long, with eighteen segments; P3 is 8 mm. 

 ong, with eighteen segments, proportionately more slender than P2 and 

 with much shorter segments which become as long as broad on the third 

 and twice as long as broad basally on the tenth or eleventh; P c and P4 

 are 7.5 mm. long, with eighteen segments, and resemble the preceding 

 pinnules; the distal pinnules are 12 mm. long, with from twenty to 

 twenty-four segments which, beyond the fifth, are twice, and distally are 

 three times as long as broad, with very finely spinous distal ends. 



Type local ily.—" Si boga " Station No. 310. 



Eudiocrinus venustulus sp. nov. 



The centrodorsal is thin discoidal, the bare dorsal pole fiat, finely papil- 

 lose, 1 mm. in diameter; the cirrus sockets arc arranged in a single 

 marginal row. 



The cirri are xii, 15-16, 6.5 mm. long, rather slender ; the first segment 

 is short, the second longer, the third about as long as the median diam- 

 eter; the fifth and sixth are the longest, about as long as their distal 

 diameter or slightly longer ; the segments after the eighth are subequal, 

 slightly longer than broad ; the third to the seventh segments are con- 

 stricted centrally with strongly expanded distal ends which overlap the 

 bases of the succeeding segments, especially dorsally; beyond the seventh 

 this character gradually dies away. 



The distal edge of the radials is just visible beyond the edge of the 

 centrodorsal, and is ornamented with a row of small regular tubercles; 

 the pseudosyzygial pair (the ossicle- of the 1 Br series) is oblong, not 

 quite twice as broad as long, with the proximal, distal and lateral edges 



