159 

 Stat. 302. io°27'.9S., I23°28'7E. Timor Sea. 216 Metres. 1 Ex. 



The centrodorsal is discoidal, with a bare flat polar area 3.5 mm. in diameter. 



The cirri are XIV, 18 — 20, 23 mm. long; the first segment is very short, the following 

 gradually increasing in length to the fourth, which is slightly broader than long, and the fifth- 

 seventh, which are as long as, or very slightly longer than, broad; the eighth, a transition 

 segment, is about half again as long as the median diameter; the ninth is about as long as 

 the median diameter; the following gradually decrease in length so that the last three or four 

 before the penultimate are about twice as broad as long; the distal dorsal edge of the eighth 

 is thickened ; on the succeeding this soon becomes a thick rounded dorsal spine of the type 

 characteristic of the genus. 



The ends of the basal rays are visible as small but prominent rounded tubercles in the 

 angles of the calyx. The radials are concealed. - 



The IBr, are very short, about twice as long on the lateral border as in the median 

 line, in lateral apposition for the basal two thirds but in the distal third diverging in nearly 

 a straight line, extending well up in the angles of the calyx ; they bear a low blunt median 

 carination. The IBr, (axillaries) are rhombic, twice as broad as long, the lateral angles in 

 contact with those of their neighbors; the cutting away of the distal angles of the IBi^ forms 

 large and conspicuous water pores just beneath the apposed angles of the axillaries; in the 

 median line of the axillaries there is a low blunt median carination ; from the lateral angles a 

 horizontal ridge runs inward for one third to one half of the distance to the median line, 

 sometimes in the middle of the angle, sometimes toward the proximal side, where it branches, 

 one branch curving downward and becoming a produced proximal border which runs to the 

 median carination, the other branch running as a thickened rim along the distal faces of the 

 axillary, or as a ridge just within the distal edges, sometimes meeting just proximal to the 

 distal apex, but usually forming a broad curve beyond which is the apex. The IIBr series 

 are 2; the proximal and distal edges of the elements of the IIBr series are moderately thickened 

 and everted; there is a slight rounded median carination; the axillaries have thickened distal 

 edges and produced proximal edges, the latter running in broad curve in the central part of 

 the segment, in the lateral third or fourth running nearly or quite straight to the lateral angle, 



The edges of the first two brachials are modified like those of the elements of the IIBr 

 series; there is a tracé of a median carination. 



Pj is 10 mm. to 12 mm. long with 17 — 21 segments which become about as long as 

 broad on the sixth, and nearly twice as long as broad terminally; the pinnule is evenly 

 tapering, rather strongly prismatic, and but little enlarged ; the second-fifth segments are sharp 

 distally, though not distinctly carinate; the outer segments have the distal angles rather 

 prominent, though not produced. P., is 6.5 mm. long with 12 segments, shorter, more slender, 

 and slightly less tapering than Pj ; the pinnule is strongly and sharply prismatic,' the profile 

 of the prismatic angle on the outer segments being sligthly convex; the distal segments have 

 slightly prominent distal angles. P 3 is 6 mm. long with 1 2 segments, similar to P., but tapering 

 slightly more rapidly distally. The following pinnules resemble P... The distal pinnule are slender 

 9 mm. long with 17 segments. 



