522 Stimpson on the Crustacea and Echinodermata 
produced and rounded ; its inner angle bearing the 15-artic- 
ulate flagellum. Eye transversely oblong. Feet covered 
with simple hairs. Those of the first and second pairs with 
small subcheliform hands; those of the third and fourth 
pairs with the third and fourth articles dilated, the fifth 
slender, the sixth very small. Feet of the posterior three 
pairs very much widened; those of the sixth pair largest. 
Caudal stylets of the first and second pairs with short styli- 
form rami, the inner ones being a little shorter than the 
outer ones; those of the third pair with long, flattened, 
equal rami, the outer ones spinulose along their outer 
edges, both fringed with long sete on the inner sides. 
Terminal caudal spines of considerable length. 
The color is yellowish-white. Length, half an inch. 
It was dredged on a sandy bottom in ten fathoms, in the 
channel near the entrance of San Francisco Bay. 
Mus. N. P. Exp. 
PZECILOPODA. 
ARGULUS PUGETTENSIS. Dana. 
Argulus Pugettensis, Dana; U. S. Exploring Expedition, Crust. ii, 151, 
PL XCIV. f. 2. 
Several specimens of this species were taken from fishes 
in Tomales Bay, by Mr. Samuels. 
Mus. Expl. Exped.; Smithsonian. 
ECHINODERMATA. 
The Echinoderms, as yet known from this coast, are iw 
in number.. In fact, the character of the greater part of the 
shores of California and Oregon is not such as affords the 
most favorable conditions for the development of numerou* 
species of this order. Nearly the whole line of coast 15 
