NO. 1798. CRINOIDS COLLECTED BY THE ALBATROSS— CLARK. 541 



Genus CRASPEDOMETRA. 

 CRASPEDOMETRA ANCEPS (P. H. Carpenter). 



Station 5355.— One small specimen with eighteen arms about 80 

 mm. long and cirri 20 mm. to 22 mm. long. 



An examination of the Ohallenger types in London has shown me 

 that Carpenter's Antedon clemens is the same thing as his Antedon 

 anceps and as m}^ Graspedometra al.iena. 



Subfamily STEPH^lSTOMlETRIlSr^E;. 

 Genus STEPHANOMETRA. 



STEPHANOMETRA CORONATA A. H. Clark. 



Port Busin, Barias Island. — One fine specimen closely resembling 

 the type in the Indian Museum at Calcutta ; it has thirty-four arms 

 about 150 mm. long; four of the post-radial series bear seven arms 

 and one bears six ; as in the type the division series omitted are always 

 internal; the cirri are XVIII, 27-29, 26 mm. to 28 mm. long. 



The color is dark purple. 



This species was previously only known from ''India." 



Srabfamily IVIA.RI^M[PGTE,IIsr.S:. 



SELENEMETRA, new genus. 



Centrodorsal large, hemispherical, bearing numerous cirri which 

 are long, moderately slender, with very numerous (45 or more) seg- 

 ments, of which the outer are short and bear sharp dorsal spines; 

 radials long, their outer sides parallel to the dorso-ventral axis of the 

 animal appearing when the animal is spread out as a short thick 

 column; IBr and division series in close apposition and sharply 

 flattened laterally; arms forty in number; proximal pinnules very 

 slender, with about twenty segments, evenly tapering distally, 

 slightly stiffened. 



Genotype. — Antedon jinschii Hartlaub, 1890. 



SELENEMETRA VIRIDIS, new species. 



Cirri XXXIII, 47-57, 30 mm. to 35 mm. long, rather slender; 

 sharp dorsal spines are developed from the tenth or twelfth, which 

 is a more or less marked transition segment, onward. 



Calyx and arm bases as in S. gracilipes,"' but the division series and 

 proximal ten brachials are sharply flattened laterally. 



Forty arms 90 mm. long. 



Pi 10 mm. long, slender, with nineteen segments, which become 

 twice as long as broad distally; Pj and Pg similar, 12 mm. long with 

 twenty-one segments, slightly stifi^er than P^, and proportionately 



a Eimerometra gracilipes A. H. Clark, Smiths. Misc. Coll. (Quarterly Issue), vol. 52, 

 1908, p. 219. 



