112 BRISINGIDAE. 
Freyellidea oligobrachia,' sp. nov. 
Plate 6, fig. 3, 4. 
Rays 6. Disk 10 mm. across. Rays all broken but certainly more than 
90 mm. long and probably in excess of 100. Disk moderately high but flat, 
covered with relatively large, thick, irregular plates which more or less overlap; 
the largest are about .75 mm. in diameter and carry as many as fifteen spinelets; 
spinelets very small with one, two, or three glassy terminal points; around anus 
the spinelets are noticeably coarser; there are a few small pedicellariae scattered 
among the spinelets. Rays rather stout, about 4 mm. wide at base, and 3 mm. 
near middle; genital area not sharply defined, about 20 mm. long and only 
4.5 mm. wide, where widest; its covering is very similar to that of the disk, 
except that spinelets are fewer and pedicellariae much more numerous; beyond 
genital area, the plates disappear quite rapidly. 
Adambulacral plates long and slender, the distal end curved inward slightly, 
its inner corner prolonged into a long slender peak; armature, of a single spine 
about 3 mm. long, which is located on aboral end of plate on actinal surface, and 
is normally covered with thick skin, densely clothed with pedicellariae; at base 
of ray these spines have flat, expanded, dentate tips but these rapidly give way 
to simple points and distally the spines are very acicular; there is no furrow- 
spine and no pedicellariae in the furrow. Inferomarginal spines small, acicular, 
completely skin covered like the actinal spines, which they seldom equal in 
length and never exceed; basally they occur at irregular intervals of 2-4 adam- 
bulacral plates but distally they are more regular and seem to accompany every 
other actinal spine. Tube-feet rather small, lying against the distal curved end 
of adambulacrals. Oral plates small, squarish, little swollen; on actinal surface 
at distal end is a long, clavate spine covered with skin and numerous pedicel- 
lariae; at adoral outer corner of plate are two or three slender spinelets lying 
horizontally and each carrying a few pedicellariae. There is no spinelet at distal 
outer corner of plate but there are a few pedicellariae in the furrow at that point. 
Color, in alcohol, nearly white. 
Station 4656. Eastern Tropical Pacific, 6° 54’ 36” S., 83° 34’ 18” W., 2,222 fms. Bott. temp. 35.2°. 
Fne. gn. m., mang. nod. 
Station 4742. Eastern Tropical Pacific, 0° 3’ 24” N., 117° 15’ 48” W., 2,320 fms. Bott. temp. 34.3°. 
Fne. It. gy. glob. oz. 
Three specimens. 
* 6Alyos = few + Spaxlw» = arm, in reference to the number of rays, the minimum for the genus. 
