13 



spine is very small, terminal ; the terminal claw is slightly longer than the penultimate segment, 

 moderately slender, and moderately and evenly curved. 



The ends of the basal rays are just visible in the angles of the calyx, bridging over 

 the narrow subradial clefts; the IBi-j are very narrow, trapezoidal, about five times as broad 

 as long, entirely united laterally ; the IBr 2 (axillaries) are very broadly pentagonal, twice as 

 broad as long, free laterally ; the IIBr series are 4 (3 -f 4-)- 



There are 20 arms 110 mm. long; one of the IIBr series is absent, but a IIBr 2 

 series (the only IIBr series not 4 [3 + 4]) bears a IIIBr 2 series internally ; the brachials 

 resemble those in young specimens of C. nmltiradiata ; the more proximal are obliquely wedge- 

 shaped, almost triangular, half again to twice as broad as long ; the distal edges of the bra- 

 chials are slightly produced, and are armed with numerous short fine spines. Syzygies occur 

 between brachials 2 + 3, 13 + 14 to 30 + 31 (usually in the vicinity of the i5 th ), and distally 

 at intervals of from four to eight (usually seven) oblique muscular articulations. The dorsal 

 and lateral surfaces of the arms and division series are thickly beset with very fine spines, 

 which are rather more prominent on the lateral surfaces. 



Pd is 15 mm. long with 30 segmerits ; the comb, which resembles that of C. multi- 

 radiata, consists of from seven to nine well developed, and three or four rudimentary teeth ; 

 the pinnule is comparatively slender; P 1 is 14 mm. long, similar to Pd, but slightly more 

 slender; P 3 is 13 mm. long, similar to P x ; P 3 is 10 mm. long, resembling the preceding ; P t 

 is 8 mm. long, with a comb; combs occur at intervals to the end of the proximal half of 

 the arm. 



The mouth is submarginal, radial ; the anal tube is central ; the perisome of the disk 

 is naked. 



Another specimen from Stat. 166 has 14 arms 100 mm. long and cirri XVI, 28 — 30, 

 28 mm. long; on some of the cirri the outermost segments bear dorsally a transverse ridge 

 with a small but distinct spine in the centre; one of the IIBr series is 2, the remainder 4 



(3 + 4). 



Of the fourteen specimens from Stat. 318 one has 10 arms, two have 11, three 12, 

 one 13, one 15, three 16, one 23, one 25, and one 30 ; the largest and best developed 

 example has 25 arms 125 mm. long, and cirri 35 mm. to 40 mm. long; the arms borne by 

 the five rays are 4, 4, 3, 3, 1 1 ; the right posterior ray bears a IBr series ending in a tra- 

 pezoidal ossicle from which four arms are given off, two, side by side, from its distal (longest) 

 face, and one from each of the lateral faces ; this segment represents two normal IIBr axil- 

 laries (with their derivatives) fused, and there is a faintly indicated median dividing line. An- 

 other large individual has 23 arms 125 mm. long; of the nine IIBr series one is 2, one 1, 

 and the others 4 (3 -j- 4) •, individual IIIBr series are all internal. 



The specimen from Stat. 319 has 32 arms 85 mm. long; on every ray one of the 

 derivatives from the IBr axillary remains undivided so that 27 of the arms are borne upon 

 five IIBr series. 



Of the examples from Stat. 320 two have 10 arms, two 12, two 13, two 14, one 17, 

 one 18, two 21, two 22, one 23, and one 28; one with 21 arms has the anterior and right 



