NO. lO CRINOIDS OF HAMBURG MUSEUM — CLARK 13 



has a carinate process similar to that of the second, but smaller ; the 

 following segments are without carinate processes, and therefore 

 appear more slender. The pinnules of the second pair are 4 mm. 

 long and consist of eleven or twelve segments; they are stiffened, 

 but only slightly enlarged; the first segment is twice as broad as the 

 median length, and has the distal angle very slightly produced ; the 

 second is slightly broader than the median length, but not quite so 

 broad as the first; the third is half again as long as broad, only 

 about half as broad basally as the first ; the fourth is similar to the 

 third but longer, twice as long as broad ; the following slowly incn 

 in length to about three times as long as the proximal diameter, the 

 terminal one or two being small as usual ; the distal edges of the 

 third and following are produced and spinous, the spines being 

 especially long on the prismatic angles ; the pinnules as a whole are 

 rounded prismatic, and taper regularly from the third segment to 

 the tip. The pinnules of the third pair are 3 mm. long and are 

 composed of eleven segments ; they resemble those of the second pair, 

 but are more slender with more elongated outer segments. The pin- 

 nules of the fourth pair are very slender, weak and delicate, not 

 stiffened, about 3 mm. long with ten or eleven segments which at 

 first are short, becoming half again as long as broad on the third, twice 

 as long as broad on the fourth and four times as long as broad 

 terminally ; the third and following have produced and spinous distal 

 edges. The distal pinnules are exceedingly slender, 7 mm. long with 

 fifteen or sixteen segments of which the third and following are 

 greatly elongated with produced and spinous distal edges. 



Family HIMEROMETRIDJE 

 AMPHIMETRA PHILIBERTI (J. Miiller) 



i. Kwala Cassan, Malay Peninsula; Ed. L. Mayer. — Six speci- 

 mens, all rather smaller than usual and apparently not quite fully 

 grown; one has twenty-four arms 100 mm. long; one of the IIIBr 

 series is 2, all the other division series being 4(3+4) ; there are 32 

 or 33 cirrus segments of which the longest are very nearly as long 

 as broad; another has twenty-two arms 100 mm. long; four of the 

 IIBr series and two of the IIIBr series are 2, the latter both internal ; 

 the cirri have 33 or 34 segments ; a third has twenty-two arms 95 mm. 

 long; both the IIIBr series (one external and one internal) are 2, all 

 the other division series being 4(3+4) ; the cirri are XXIII, 29-33, 

 23 mm. long ; a fourth has twenty-seven arms 90 mm. long ; one of the 

 IIBr series is 2, the others being 4(3 + 4) ; six of the IIIBr series are 



