464 Stimpson on the Crustacea and Echinodermata 
The dimensions of two specimens from San Francisco 
Bay are as follows :— 
Length of carapax, 2.43 inch ; breadth, 3.70 ; proportion, 1:1.52. 
g P 
[1j [1j 9.13 € €€ 3.0 : HE 
The male is therefore broader than the female. 
Its hairiness and the great length of the outer antenne 
distinguish it from all other species. In a variety found in 
Tomales Bay, the upper surface of the carapax is hairy as 
well as the sides. "The middle tooth of the inter-antennary 
front is sometimes wanting in this, as in other species. 
It is not uncommon about the mouth of San Francisco 
Bay, inhabiting rocky bottoms at the depth of two or three 
fathoms. It was also found at Monterey by Mr. Taylor, 
and at Tomales Bay by Mr. Samuels. i 
Mus. Bost. Soc.; Smithsonian; Phil. Acad.; Paris; 
Acad. Petrop. ; 
OZIUS VERREAUXII. De Saussure. 
Ozius Verreauxii, De SAvssuRE; Revue et Magasin de Zoölogie, v. 359, 
PL XIL f. 1. 
Mazatlan, ( Verreaux.) 
Mus. Phil. Acad 
Trine CORYSTOIDEA. 
TRICHOCERA OREGONENSIS. Dana. 
Trichocera Oregonensis, Dana; U. S. Exploring Expedition, Crust. i. 299, 
: PL XVIII. f. 5. 
"Thislittle crab has much the aspect of a small Cancer, 
and may be recognized by its rounded carapax, hairy legs 
and long antenne. The whole margin (including the pos- 
tero-lateral) is dentate with about thirteen teeth on each 
side. 
Puget Sound, (Expl. Exped.) 
