A MONOGRAPH OF THE EXISTING CRINOIDS 417 



is very short, the second is about twice as broad as long, the third is slightly longer, the 

 fourth is nearly or quite as long as broad, and those succeeding are longer than broad, 

 the longest (eighth-twelfth) about half again as long as broad, with the terminal only 

 slightly longer than broad. The last 10 or 11 segments have a narrow and very low 

 median dorsal carination. There are 32 arms 140 mm. long. When present IIIBr 

 series are developed on the outer side of the postradial series, occasionally also on the 

 inner side of the IIBr series. P x is 11 mm. long with 21 segments, tapering evenly 

 from the base to the tip, somewhat stiffened but not spinelike. The first two segments 

 are broader than long, the third is slightly broader than long, the fourth is longer than 

 broad, the sixth is about twice as long as broad, and the distal are about three times 

 as long as broad. P 2 is 15 mm. long, much stouter than P^ stiff and spinelike, with 

 14 segments. The first two segments are nearly half again as broad as long, the third 

 is about one-third again as long as broad, and the remainder are mostly about three 

 times as long as broad, except for the terminal, which is minute and conical. P 3 is 

 12.5 mm. long, with 12 or 13 segments, similar to P 2 but proportionately smaller. 

 P 4 is 7.5 mm. long, spinelike, but smaller at the base and tapering more rapidly than 

 those preceding, and more slender distally; it is composed of 12 segments of which the 

 outer are very greatly elongated. P s is 6 mm. long, with 12 segments, more slender 

 than P 4 and less stiffened. The next two pinnules resemble P 6 , and those following 

 are more slender and more flexible. The distal pinnules are 9.5 mm. long, with 20 

 segments, very slender, with the third and following segments between three and four 

 times as long as broad. 



The second specimen from Vatel van Toeal has 30 arms 150 mm. long; each 

 postradial series bears an external IIIBr series on each side. The cirri are XXII, 

 21-23, from 20 to 25 mm. long. The color of both specimens is deep purple, more or 

 less marked with fighter or darker. 



In the larger specimen from the Danish Expedition to the Kei Islands station 3 

 the centrodorsal is discoidal, thin, with the flat dorsal pole 2 mm. in diameter. The 

 cirrus sockets are arranged in two closely crowded and irregular marginal rows. The 

 cirri are XXIX, 15-17, from 14 to 17 mm. in length. The first segment is three times 

 as broad as long, the second is twice as broad as long, the third is from one-third to 

 one-half again as long as broad, the fourth is nearly or quite twice as long as the 

 median width, and those following slowly decrease in length so that the outermost 

 are about as long as broad, very slightly longer than broad, or, more rarely, slightly 

 broader than long. The segments up to and including the proximal two-thirds of the 

 sixth have a dull surface, the distal third of the sixth segment and the segments fol- 

 lowing having a highly polished surface. The dorsal profile of the segments following 

 the sixth is moderately convex, the maximum height of the convexity being near the 

 distal end, and their dorsal surface is sharply carinate in the median line. The 

 opposing spine is prominent, conical, arising from the entire dorsal surface of the 

 penultimate segment, with the apex terminal or subterminal; its height is equal to 

 about half the width of the penultimate segment. The terminal claw is slightly longer 

 than the penultimate segment and is moderately and regularly curved. The radials 

 are visible as a narrow line above the rim of the centrodorsal which is wider inter- 

 radially than elsewhere and is usually interrupted in the midradial line. The IBrj 

 are extremely short and bandlike, very slightly longer in the midradial line than 



