206 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. XXXIV. 
Stem and basal ring lacking. 
Radial funnel with somewhat convex sides, and the anterior angles 
produced anteriorly between the first costals, about twice as broad at 
its anterior end as high; the radials are strongly convex dorsally; 
first costals trapezoidal, about as wide at the anterior end as long, with 
a strong median elevation occupying the whole of the posterior 
border, but becoming narrow anteriorly; costal axillaries about twice 
as broad as long, trapezoidal, the anterior angle very low, the anterior 
edges very slightly curved, furnished with a prominent rounded 
median ridge, narrow posteriorly, but rapidly widening anteriorly ; 
first three brachials oblong, not quite so long as broad; fourth brachial 
COPY YR x 
YSN 
SNS : KE aa 
O f SV OR> 
NSA LBS I Lg Ar 
S a) BE Lapse 
(5 iy | OY one 
2S, VHA ge 
<a. KOO 
iy oY, 
at 2, 
ae i a 
i 
as “ 
vy, 
GQ 
Fie. 1.—BATHYCRINUS SERRATUS; CROWN. 
trapezoidal, rather broader than long; fifth brachial similar; follow- 
ing brachials squarish; the distal edge of the second brachial projects 
somewhat, those of the third and following being strongly overlap- 
ping, giving the arms a very serrate appearance; the first six brachials 
are provided with a strong rounded median ridge and thin lateral 
borders; the remaining brachials are strongly convex dorsally; the 
first pinnule is on the tenth brachial. Length from lower edge of 
radial funnel to tip of arms 40 mm. (fig. 1). 
Type.—Cat. No. 22667, U.S.N.M., from U. S. Bureau of Fisheries 
steamer Albatross, station No. 2226; 37° 00’ 00’ north latitude, 71° 
54’ 00’’ west longitude (off the coast of Virginia) ; 2,045 fathoms. 
