Ae eee Had f AL, IGS 
270 COLE 
6 or 8 eggs in a ball; the male may have from 1o to 15 of these masses 
on each oviger. 
Legs about twice as long as body, rather slender, especially in the 
male; ¢.1 with an especially long finger-like projection on its dorsal side, 
nearly as long as the joint itself; ¢.2 about half again as long as ¢.1; ¢.3 
equals ¢c.1; f. broader in the female, with the conical projection and spine 
characteristic of the genus at its distal end; 4.1 and 4.2 each about equal 
to 7, outer border uneven and armed with scattering short spines; ¢s.1 
nearly unarmed; ¢s.2 large and stout, nearly as long as #.2, well arched, 
with a few small spines on the dorsal side; heel with 3 rather strong, dis- 
tally curved spines; a row of short, slender spines along the sole beyond 
it; cZ. stout and but little curved, half as long as ¢s.2; aux. cl. well devel- 
oped, half as long as c/, Except as mentioned, the leg is almost free of 
armature; there are a few short spines on ¢.2 and ¢.3. 
Length 1.5 mm. to 2 mm.; extent about 8 mm. 
SPECIMENS EXAMINED. 


Lot. Locality. No. of specimens. Date. Source. 
ee g | Lands End, San PE BS) Feb. 8, 1899 Univ. of Calif. 
Francisco Co., Calif. 
12 | Oakland Creek, Calif. | 24, 20 juv. March, 1899 Univ. of Calif. 
Remarks.—The present species of Ammothea was much the smallest 
representative of the genus in the collections. In size it compares with 
A. echinata of Europe. This species is described from the 3 speci- 
mens from Lands End (Lot g); the specimens from Oakland Creek 
(Lot 12) differ slightly from these, but with the material at hand it did 
not seem advisable to separate them as a subspecies. The process on 
the first coxal joint is not so long, while the chelifori and caudal seg- 
ments are apparently a little longer in proportion. With Lot 12 there 
are 20 immature specimens in various stages of development, and all 
with chelate chelifori. 
There were two species of Hydroids in the bottle with Lot 12, among 
which the Pycnogonids were probably collected. These were identified 
by Professor Nutting, one as Odelia dichotoma, the other as Odelia gela- 
tinosa or a Closely epg species. 
Ache tea 
PRIBILOFENSIS sp. nov. 4: 
Plate x11, fig. 6; plate xviu, figs. 7 and 8; plate xrx, figs. 1-8. 
Lype.— $ and ¢, University of California, No. 19,507, St. Paul Island, 
Bering Sea. 
Trunk broad, not markedly tapering posteriorly, unarmed; antero- 
