THE STARFISHES OF THE HAWAIIAN ISLANDS. 
1113 
(1.5-2 mm. long) on margin toward actinostome and near median suture; a similar spinelet on the 
lateral prolongation, pointed over furrow. Both bear numerous microscopic pedicellarise. (2) Along 
actinal face of plate a curved longitudinal row of 4 tapering spines and spinules extending outward 
• from the inner marginal spine.- The third from the outer end is longest (4 mm.), and thence they 
diminish in length toward either end of series. All are invested with membrane and bear the usual 
microscopic pediceilarise. Usually these spines stand erect, but occasionally the outermost is directed 
over the furrow. 
Madreporic body circular, subtubercular, 2 mm. in diameter, and situated at the edge of the disk 
on curvature uniting lateral and abactinal surfaces. Ft is situated on the upper arm of the interradial 
plate, which is more prominent than the others, and is covered densely with spinelets like those of 
remainder of abactinal surface. 
Color bleached ashy in alcohol; probably salmon pink or red in life. The writer does not 
recollect any member of this family taken during the Hawaiian cruise which departed from this tint. 
No color is recorded for this species, however. 
Variations: A specimen from 3992 has, at base of ray, a third furrow spinelet situated just aborally 
to the usual adoral spinelet, and less commonly there may be a group of 3 in this position. Similarly 
there may be 2 aboral furrow spinelets, one situated above the other. The aboral spinelet, which is 
often typically absent on alternate plates, seems very seldom lacking in this specimen. On the outer 
part of ray the armature is arranged like that of type,’ although rarely 2 adoral furrow spinelets are 
present. In other respects this specimen is fairly typical and does not appear to be a different species. 
Localities: Type (no. 21192, U. S. National Museum) from station 4177, vicinity of Niihau Island, 
451-319 fathoms, gray sand and globigerina; bottom temperature, 41°; 4 specimens. Taken also at 
station 3992, vicinity of Kauai Island, between 400 and 500 fathoms; fragments. 
This species is characterized by its small disk, extensive genital region, with rather widely 
separated genital costae; by the very long lateral and actinal adambulacral spines, and by the armature 
of the adambulacral and mouth plates. It is a constantly 9-rayed form, and presents' some resem- 
blances to B. cricophora Sladen from 390 fathoms, northwest of St. Thomas, Virgin Islands. It is, 
however, widely different from this form in its much smaller disk, fewer rays (11 in cricophora), and 
in the details of its armature. While B. cilherti resembles the preceding species in the more general 
features of the adambulacral armature, it is at once separable on account of its smaller disk, fewer 
rays, fewer and more widely separated genital costae, and numerous other details shown in the 
accompanying figures. 
Named for my father, Dr. Albert K. Fisher. 
Brisinga evermanni, new species. 
PI. sun, fig. 2; pi. xlv, fig. 4; pi. xi.vii, fig. 3; pi. XLVIII, figs. 2, 2a-e. 
Rays 15. R = at least 270 mm. (ray-tip gone) ; r = 15 mm. R = about 18 r. Breadth of rayat 
base, 6 mm.; at widest part of genital inflation (70 mm. from disk) 8 or 9 mm.; at distal limit of 
genital region (100 mm. from disk) 6 mm. 
Rays long and slender and somewhat contracted at base. Thence they widen quickly but evenly 
into the slightly inflated genital region, which is depressed when the ray is straight. Genital region 
maintains a fairly uniform width nearly to its distal limit, when ray gradually and evenly begins to 
taper toward the long and attenuate extremity. Portion beyond genital region is more or less 
depressed in its proximal fourth, but is marked by the usual truncate carination of ambulacral ridge 
on its outer three-fourths. Disk large. Costal ridges of arms rather widely separated. Lateral spines 
long. ‘ 
The disk, which is large, has been somewhat mutilated, but its essential characters remain intact. 
Abactinal surface is raised but slightly above the bases of arms, and is beset with very short, sharp 
prickles, distinctly spaced but closely set. Each prickle is invested with a thick membranous sheath, 
so that it appears papilliform. Around bases of prickles are numerous crossed pedicellarije. Each 
spinelet is borne on a slight boss of its plate, and near the border of disk where prickles are shorter 
each of these slight ^tubercles may bear a group of 2 or 3 prickles. Surrounding anal opening is a com- 
pact group of stout, tapering, sharp spinules, the longest 2 mm. in length and all membrane-invested. 
.Some of the papillse of general surface appear truncate, especially toward center of disk, but the 
