249 



the IBr series; similar conspicuous pores occur on the line of the articulation 

 betvveen the first and second brachials (west of Celebes; 724 Metres) dione 

 c" ossicles of the division series and first two brachials in close lateral contact 

 throughout, in small specimens through ventrolateral processes ; distal angles 

 of the IBr x slightly produced, overlapping the proximal portion of the lateral 

 angles of the axillaries ; lateral edges of the first brachials sharply and 

 broadly flattened; cirri with 25 — 28 segments of which the longest are 

 from two to three times as long as the diameter of the much expanded 

 and overlapping distal ends, and the last seven to ten are about as long 

 as broad; arms about 50 mm. long (Philippine Islands; 509 — 13 14 

 Metres) explicata 



1. Fariomctra scutifera sp. nov. 



Stat. 119. i°33'.5 N., i24°4i'E. Celebes Sea. 1901 Metres. 2 Ex. 



The centrodorsal is sharply conical with straight sides, 3.5 mm. in diameter at the base 

 and 3.0 mm. from the apex to the interradial border, thickly covered with very numerous 

 cirrus sockets. 



The distal border of the radials is even with the rim of the centrodorsal in the median 

 line, and is slightly produced — very much less than in most species — ■ in the interradial 

 angles; the distal angles are slightly separated. 



The IBfj are very short, eight to ten times as broad as the median length, the proximal 

 border parallel with the curved distal border of the radials, the distal border on either side 

 of the median line convex, nearly parallel with the concave proximal sicles of the axillaries. 

 In direct lateral view (viewed at right angles to the dorsoventral axis) the IB^ appear almost 

 or quite bisected by the posterior process from the axillary. The bases of the IB^ are widely 

 free laterally. 



The IBr 3 (axillaries) are about as broad as long with the anterior angle considerably 

 produced ; the lateral angles project somewhat beyond the clistal angles of the IBi-j so that 

 narrow elongate water pores are formeel. Neither the IBi^ nor the axillaries have ventrolateral 

 processes. 



The first brachials are extremely short in the median line, very slightly longer in median 

 length, but becoming four to five times as long externally ; their inner sides diverge at approxi- 

 mately a right angle. ^ 



The second brachials are longer than broad, rather sharply convex dorsally, with the 

 proximal sides rather strongly concave so that a relatively long and narrow process incises the 

 first brachials. 



The arms are all broken at the syzygy between the third and fourth brachials. The 

 eversion of the distal edges of the brachials and the development of spines along these edges 

 are almost obsolete. 



In a smaller specimen the centrodorsal is sharply conical, slightly higher than broad at 



SIBOGA-EXPEIHTIE xlii£. 32 



