THE S.TAKEISHES OF THE HAWAIIAN ISLANDS. 
1117 
Lateral spines are not nearly so prominent as in the preceding species. They begin at about 
seventh adambulacral plate and are articulated to a lateral plate at the end of each primary annular 
ridge. At the base of fay the spines are about 3 to 4 mm. long; in mid-genital region 6 to 7 mm., and 
on outer third of ray 4 to 5 mm., being here slightly longer than the actinal adambulacral spinules. 
In variations a and b the lateral spines are longer than in the type, but only slightly. Lateral spines 
membrane-covered and beset with minute pedicellarise. 
Actinostome rather large, 9 mm. in diameter. Mouth plates fairly prominent, not deeply excavated 
toward furrow, nor is there a prolongation of the inner furrow corner of plate as is usual in this genus. 
.Each plate has a slightly curved edge toward actinostome, and rises gently toward medium suture, 
which is conspicuous. " Armature as follows: (1) A marginal series of 3 short spinelets on edge toward 
actinostome. These spinelets are 1.5 mm. long, and the lateralmost is directed across mouth of furrow. 
If a line is drawn from outer furrow corner to inner suture corner of each plate, it would pass (usually) 
through the bases of 3 spinelets which stand on the actinal surface, the outermost on the very edge of 
plate and often directed across the furrow. The innermost of the series stands in center of plate and 
is stoutest but scarcely longer than marginal spinelets. Median spine of this group, which occasionally 
stands on the slightly excavated furrow margin, is slender and longer. All spinelets have an exceed- 
ingly delicate membraneous sheath, beset with comparatively few pedicellarise. In variation a the 
actinal spinelets form a more transverse than diagonal series. 
Madreporic body of fair size, subtubercular, being much larger than interradial plate, just adcen- 
trally to which it is situated. Striations coarse, irregular. 
Color in life, coral red to light salmon pink. 
Localities: Type (no. 21194, U. S. National Museum) taken from station 3824, south coast of 
Molokai Island,' 222-498 fathoms, coral rocks, broken shells; bottom temperature, 49.5-41.5°. Typical 
specimens also from the following localities: Stations 3865, 3910, 3920, 4090, 4166. 
Record, of localities. 
Station. 
Locality. 
Depth. 
Nature of bottom. 
3817 
South coast of Oahu 
Fathoms. 
320 ^ 
Coarse lava, coral sand, shells. 
Fine volcanic sand, rocks. 
Fine gray sand. 
Fine gray sand and mud. 
Gray sand and mud. 
Gray sand, broken shells. 
Gray mud, foraminifera. 
Fine gray sand. 
Do. 
Do. 
Do. 
Coral sand, rocks, foraminifera. 
satis 
Northeast approach to Pailolo channel, between Maui and 
Molokai. 
North coast of Molokai 
328-414 
311-337 
289-292 
3910 
'3914 
South coast of Oahu 
do 
3920 
do 
280-265 
382-253 
304-308 
308- 306 
272-286 
309- 257 
293 
4041 
4090 
4091 
West coast of Hawaii 
Northeast approach to Pailolo channel 
do 
4096 
do 
4131 
4161 
Vicinity of Kauai 
Vicinity of Bird Island 
This is the commonest Brisinga in Hawaiian waters, and seems quite distinct from any form 
heretofore described. It is related more or less closely to B. exilis Fisher from off the California coast. 
