1921] Schmitt: The Marine Decapod Crustacea of California 169 
directed backward; one on the cardiac area; two (rarely six) on the hind margin 
of the carapace; one on each branchial area; there is a spine at the external angle 
of the orbit, and the lateral margin of the carapace is spinose. Second, third and 
fourth segments of abdomen conspicuously two-ridged; the second segment has a 
pair of small spines on the anterior ridge, and another pair nearer the median line 
on the posterior ridge; third segment also with a pair of spines on the anterior 
ridge, and occasionally with a third spine in the median line on the posterior 
ridge. Chelipeds long, hairy, and very spiny from the proximal end of the merus 
to the base of the fingers. 
Dimensions.—Type, ovigerous female: length 48.5 mm.; length of carapace 
26 mm.; breadth 15 mm.; length of rostrum 8 mm. 
Type Localities—Off Tres Marias Islands (‘‘ Albatross’’ stations 3424 and 
3425), 676 to 680 fathoms, and off Acapulco, Mexico (‘‘ Albatross’’ station 3417), 
493 fathoms. 
Distribution.—From off Anacapa Island, California, to off Acapulco, Mexico; 
302 to 680 fathoms. 
Munidopsis verrilli Benedict 
Munidopsis verrilli Benedict, Proc. U. 8S. Nat. Mus., 26, 291, fig. 34, 1902. 
Fig. 108. Munidopsis verrilli, X 1%4 (from Benedict, U. 8S. N. M.). 
Characters—Abdomen unarmed. Rostrum slender and triangular in cross 
section, upper margin running back as a carina to a point behind the spines of 
the gastric region. Front, from base of rostrum to a point under the anterolateral 
spine, is nearly straight and is at an angle of about forty-five degrees to the median 
line. Eye-stalks armed with two spines, of which the inner is much the longer. 
