Fisher — Neio East Indian Starfishes. 33 



adoral spinelet is a shorter one generally pointed away from the furrow ; 

 the large actinal spine, equal to 2 or 3 plates in length, is situated on the 

 aboral half of plate. Costal area swollen, occupying somewhat more than 

 basal third of ray; integument thin, devoid of prickles. Breadth of disk 

 equal 5 times width of ray at base (6 mm. ). R=410 nmi., r=15 ram. 



Type.— Cat. No. 37,022, U. S. N. M. 



Type-locality. — Station 5626, between Gillolo and Kayoa Islands, 

 Molucca Islands, 265 fathoms, gray mud, fine sand. 



Brisinga acanthogenys new species. 



Diagnosis. — Rays 11. Costfe 20, complete, prominent, well spaced, 

 with 1 complete and 1 or 2 incomplete bands of intercostal pedicellariae; 

 costal spinelets fairly prominent, few in number; disk small, with beveled 

 margin; plates granuliform, spaced, with usually 2 or 3 very small spine- 

 lets but no pedicellarife ; lateral spines long, equaling length of 7 or 8 

 adambulacral plates; no integumentary prickles on rays; adambulacral 

 plates about as wide as long proximally; armature, proximally: 1 true 

 furrow spinelet at each end, 1 minor adoral subambulacral spinule a 

 little longer than the plate, and a major sul)ambulacral spine 3^ to 4 

 plates in length, situated on a prominence of the aboral half of the plate; 

 mouth plates each with 2 suboral spines. Breadth of disk equal to 3)4 

 times width of ray at base (6 mm. ). R=350 mm., r=ll mm. 



Type.— Cat. No. 37,023, U. S. N. M. 



Type-locality. — Station 5440, mouth of Lingayan Gulf, Luzon, 172 

 fathoms, fine gray sand, globigerina; bottom temperature, 53.2° Fahr. 



Craterobrisinga new subgenus. 



Diagnosis. — Proximal adambulacral plates short, wider than long; the 

 major subambulacral spines of proximal plates clavate, with enlarged 

 capitate, often truncate tip. Type, Brisinga panopla Fisher. 



This subgenus includes B. panopla Fisher, B. alberti Fisher, B. cri- 

 cophora Sladen, B. parallela Koehler, besides the species described 

 below. 



Brisinga (Craterobrisinga) eucoryne new species. 



Diagnosis. — Rays 11. Related to B. alberti Fisher. Five or 6 incon- 

 spicuous rudimentary costse at base of ray, followed by 17 to 20 well- 

 spaced prominent ridges occupying proximal third of ray; numerous 

 small integumentary spinelets, and about 3 inconspicuous bands of pedi- 

 cellarise between the costae, which are composed of elongate elliptical 

 plates, usually not compressed, bearing 1 or 2 spinelets in center; disk 

 small, with crowded, rather long, solitary spinelets giving a hirsute 

 appearance; adambulacral plates proximally wider than long, with 

 crowded armature; first dozen plates with the slenderer of the 2 sub- 

 ambulacrals often truncate and slightly flaring; typical armature; a true 

 furrow spinelet at either end of the plate and 2 large actinal grooved 



