532 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 39. 



Ends of the basal rays visible as small tubercles in the angles of the 

 calyx; radials concealed in the median line but visible interradially 

 as broad low triangles; IBt^ exceedingly short, six to eight times as 

 broad as long; IBr2 triangular, not greatly broader than long, the 

 anterior angle acute and somewhat produced. 



Ten arms probably about 60 mm. long, resembling those of Comis- 

 sia liltkeni; the lower brachials are triangular, about as long as broad ; 

 the arm increases slightly in diameter up to the twelfth or fourteenth 

 brachial, then gradually tapers distally; the distal intersyzygial 

 interval is three oblique muscular articulations. 



P^ 12 mm. to 14 mm. long, very slender, with forty segments; 

 terminal comb composed of from fifteen to seventeen long curved teeth 

 set very closely together basally; Pg 12 mm. long resembling Pj with 

 a comb of fourteen teeth ; P3 9 mm. long resembling P,; P4 8 mm. long 

 with a comb of fourteen teeth; P5 7.5 mm. long with a similar comb; 

 Pe somewhat stouter than the preceding pinnules, 5 mm. long, with a 

 rudimentary comb; following pinnules resembling Pg, but without 

 combs; the distal pinnules are slender, 9 mm. long. 



Color, yellow. 



Type.— Cat. No. 27485, U.S.N.M., from station 5431. 



Subfamily COlMACTIlSrilN^. 

 Genus COMATULA. 



COMATULA PECTINATA (Linnaeus). 



Station 5276. — One fine specimen with only six rather short and 

 slender cirri; these are irregular in position, not being segregated 

 in the interradial angles like the cirri of C. purpurea. 



Station 5358. — One fine specimen with the cirri XIV, 13, 13 mm. 

 to 15 mm. long, rather stout. 



SuTofainily COlM^STERIISr.^]. 



Genus COMASTER. 

 COMASTER FRUTICOSUS, new species. 



Centrodorsal discoidal with a broad flat bare polar area 2 mm. 

 to 2.5 mm. in diameter. 



Cirri slender, XXVII-XXX, 8-10 (usually 9) 7 mm. to 9 mm. 

 long; the first segment is much broader than long, the second is 

 about twice as long as its median breadth, and the third is the long- 

 est, three times as long as the median breadth; the fourth is some- 

 what shorter than the third, a transition segment; the following 

 segments gradually become shorter, the antepenultimate being 

 about as long as broad and the penultimate slightly broader than 

 long; the transition and following segments have slight dorsal 

 processes, as in the other small species of the genus. 



