558 ' PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. XXXIV. 
Zooids.—Ventral zooids forming short rows leading inward and 
downward from the bases of the leaves. There is a more conspicu- 
ous row of five or six zooids on the rachis just back of the base of 
each leaf. Each zooid is surrounded by a circlet of perpendicularly» 
placed spicules. Ova are seen near the bases of the leaves in the 
downward continuations of the polyp cavities. 
Color.—Bright scarlet. Polyps white (perhaps yellow in life). 
Type.—Cat. No. 22597, U.S.N.M., Albatross Station 4116, between 
Oahu and Molokai, 241-282 fathoms. 
Distribution.—South coast of Oahu: Station 3907, 304-815 fath- 
oms; Station 3908, 304-808 fathoms (Cat. No. 25414) ; Station 3910, 
311-337 fathoms (Cat. No. 25329, U.S.N.M.); Station 3917, 295-3830 
fathoms (Cat. No. 22582, U.S.N.M.) ; Station 3919, 220-257 fathoms 
(Cat eNO 22599 SU hos Nev) ee 
Between Oahu and Molokai: Station 4114, 154-195 fathoms; Sta- 
tion 4116, 241-282 fathoms (Cat. No. 22597, U.S.N.M.); Station 
4117, 253-283 fathoms (Cat. No. 22600, U.S.N.M.). 
One of the prettiest and most abundant pennatulids in the col- 
lection. 
PENNATULA FLAVA, new species. 
Plate XLI, figs. 5 and 6. 
Length of a large specimen 200 mm. Stem, to first leaf with normal 
polyps, 100 mm. The stem has a small basal bulb and an elongated 
swollen portion commencing about 25 mm. above the proximal end, 
and gradually diminishing until the ordinary caliber is attained be- 
low the first leaves; varying, however, considerably in different speci- 
mens. Leaves not so closely approximated as is usual in the genus, 
those with normal polyps being about twenty-five in number on 
each side; the larger ones being 20 mm. long by 34 mm. broad. They 
are an elongated triangle in shape. 
Polyps six to nine in number, decreasing toward proximal leaves, 
the last having but a single polyp. Calyces cylindrical, in a single 
row, directed toward the distal ends of the leaves, increasing in length 
from the proximal to the distal end of the leaf; average length of 
longest side, 2 mm.; margin with eight acute, elongated points. 
Spicules of the usual needle shape, bright yellow in color, usually 
of smaller size but abundant on the stem and rachis; almost absent 
on leaves except at their extreme bases, and on the polyp band; there 
being a few, however, on the general surface of the leaves. Those on 
the calyx walls larger, arranged in eight longitudinal rows, the upper 
ends of the rows projecting into the eight marginal points. 
Below the true leaves there is a long series of rudimentary leaves 
which dwindle away into mere spiny points. This series reaches to 
within 47 mm. of the basal end of the stem in a specimen 8 inches 
long. 
