154 RATHBUN 
middle of eye-stalk; large cheliped of male elongate, the 
carpus twice, or nearly twice, as long as broad . . dongimana. 
B’. Eye-stalks oblong, their inner extremities tuberculiform, and not 
diverging ; cornea in front of middle of eye-stalk ; carpus of large 
cheliped of male very little longer than broad, and very little 
longer, sometimes even shorter, than palm. . . . . affnis. 
A’. Front with a sharp and prominent median tooth. 
B. Eyes not pigmented, oblong; large cheliped of male with carpus 
much shorter than wide . . . . . . . © goniophthalma. 
B’. Eyes pigmented, tips acute and divergent, cornea behind the mid- 
dle of the stalk; large cheliped of male with carpus a little 
longer than twidey 7). jen ie, sean io ist acu ne Ua oneness: 
CALLIANASSA CALIFORNIENSIS Dana. 
Distribution. —From Mutiny Bay, Alaska (Lockington), to mouth of 
Tia Juana River, San Diego County, California (Dr. E. A. Mearns, U.S. A.). 
Besides ‘published localities, there are in the National Museum speci- 
mens from Departure Bay, Vancouver Island, British Columbia, and San 
Diego, California. 
CALLIANASSA LONGIMANA Stimpson. 
Distribution. — From Vancouver Island, British Columbia (Bate), to San 
Quentin Bay, Lower California (Lockington). 
CALLIANASSA GIGAS Dana. 
Distribution.— Puget Sound (Dana, Calman). Gulf of the Farallones, 
California, 21 fathoms (A/darross station 3150), one fragmentary specimen 
showing the large cheliped and portion of abdomen. 
CALLIANASSA AFFINIS Holmes. 
Distribution.— From Catalina Harbor to San Diego, California. 
CALLIANASSA GONIOPHTHALMA Rathbun. 
Plate viii. 
Callianassa goniophthalma RATHBUN, Proc. U.S. Nat. Mus., XXIv, 886, 1902. 
Carapace contained in the abdomen two and a third times. Rostrum 
triangular, acuminate, reaching barely one third the length of eyes. Lat- 
eral projections of the front shallow blunt teeth. Behind and parallel to 
the front there is a sulcus which is continued back, defining the raised 
area of the gastricregion. No median carina, but a slight, blunt elevation 
near the posterior margin, corresponding to the strong tooth of C. cecigena. 
