644 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxvi. 



at first evenly rounded dorsally, but after the basal third they gradu- 

 ally become compressed and more sharply rounded dorsally, and in 

 the outer half very narrow and very sharply rounded dorsally, though 

 not really carinate; after the basal third of the arm the brachials 

 develop slightly proje(;ting and finely spinous distal edges. The 

 dorsal (but not the dorso-lateral) side of the fourth and following 

 brachials is covered with fine short spines, which gradually become 

 coarser after the proximal third of the arm and tend to arrange 

 themselves into longitudinal lines; joints of the division series and 

 arm bases with strongly denticulate borders. Syzygies occur between 

 the third and fourth brachials, again between the twenty-fifth and 

 twenty-sixth to thirty-fifth and thirty-sixth (usually in the vicinity 

 of the twenty-ninth) and distally at intervals of five to seventeen 

 (usually seven to ten) oblicjue nniscular articulations. 



Pd 1'2 nun. long, moderately stout in the proximal half, but becom- 

 ing slender distally, with about twenty joints, all of which are approx- 

 imately as long as broad, and the basal two-thirds of which are 

 strongly carinate; P, 10 nun. long, similar to Pn, but less stout 

 basally; ]*o C mm. long, nnich more slender than 1\, tapering evenly 

 from the base to the tip, with fifteen joints, the proximal four or five 

 s(iuarish, then longer than broad, and about twice as long as broad 

 terminally. P., similar, (5 nnn. long; P^ and following pinnules 5 mm. 

 long with about thirteen joints, less slender distally than the preced- 

 ing; the joints have slight overlapping spines developed on the distal 

 edge along the dorsal crest ; distal pinnules 10 nnn. long, rather 

 slender, with about twenty joints, the first short and crescentic, the 

 second trapezoidal, about as broad distally as its median length, the 

 following half again as long as broad, the terminal four or five dis- 

 ]n'oportionately small; the dorsal crest is sharp and somewhat 

 spinous. 



TyjH'-spcc'tinen.—Cwi. No. 20A.= ^V'- , Indian Museum; Malay 

 Archipelago; yo fathoms. 



Cotijpe.—Ko. 2r)4S4, U.S.N.M.; from the same locality. 



This species is named for Dr. N. Annandale, the superintendent of 

 the Indian Museum, thi'ough wlioses courtesy the exceptionally inter- 

 esting collections of that institution have been sent to me for study. 



Subfamily CHA.KI'rOlVIET'JRIJSrJE;. 



Genus CRINOMETRA A. H. Clark. 



CRINOMETRA PULCHRA, new species. 



Cirri XX-XXIV, 18-20, moderately slender, 30 nnn. to 40 mm. 

 long. 



Ends of the basal rays visible as rather large tubercles in the 

 angles of the calyx; radials concealed, or at most forming a 

 /X-shaped ridge over the ends of the basal rays; IBr^ very nar- 



