NO. 1820 RECENT CRINOIDS FROM PHILIPPINES CLARK 229 



Measurements. — Arms 60 mm. ; cirri 20 mm. to 25 mm. 

 Color (in spirits). — Arms and cirri yellow, the calyx and division- 

 series, and the first four or five brachials, dark brown. 



Tv/'f.— Cat. No. 25448, U. S. N. M., from Albatross Station No. 

 5123: between ]\Iarinduque and jMindoro ; 283 fathoms. 



This species was also found at Station No. 5116; north of Mari- 

 caban Island (between Luzon and IMindoro) ; 200 fathoms; and at 

 Station No. 5198; oiT Panglao (west of Bohol) ; 220 fathoms. 



It gives me great pleasure to associate with this interesting species 

 the name of Dr. Hugh AI. Smith, of the United States Bureau of 

 Fisheries. 



Family ANTEDONID.^ 



Genus PEROMETRA A. H. Clark 



PEROMETRA ELONGATA, new species 



A specimen, consisting of the centro-dorsal (with the cirri) calyx, 

 and arm bases, belonging to a species of this genus, while agreeing 

 in the main with Carpenter's description of P. halanoidcs, differs 

 widely from his figure of that species, and probal^ly represents a 

 new form, which may be described as follows : 



Centro-dorsal sharply conical and greatly elongated, 4 mm. long 

 by 1.5 mm. broad at the base; cirrus sockets arranged in ten columns 

 of four or five each, two columns in each radial area ; sockets in each 

 column closely crowded, but the pair of columns in each radial area 

 separated from their neighbors by a shallow rounded furrow averag- 

 ing about half as broad as the adjacent cirrus sockets, the two col- 

 umns of each pair being separated by a line rather less than half as 

 broad as the furrow separating the radial pairs ; distal third of the 

 centro-dorsal marked with partially obliterated cirrus sockets which 

 bear no cirri. 



Cirri xlv, 27-35 (usually nearer the latter), 20 mm. to 26 mm. 

 long; first joint about twice as broad as long, second slightly longer 

 than broad, third about twice and one-half as long as broad, fourth 

 rather over three times as long as broad, fifth and following about 

 four times as long as broad or rather over; after the tenth or twelfth 

 the joints gradually decreasing in length, the terminal ten being 

 squarish or only slightly longer than broad ; after the first ten the 

 distal dorsal edge of the joints begins to be somewhat prominent, 

 this very gradually increasing distally ; opposing spine rising from 

 almost the entire dorsal surface of the penultimate joint, the apex 

 terminal in position, rather stout, reaching not quite to the diameter 

 of the penultimate joint in height ; terminal claw moderately stout 

 and moderately curved, about as long as the penultimate joint. 



