1921] Schmitt: The Marine Decapod Crustacea of California 159 
Paralomis multispina (Benedict) 
Plate 23; plate 30, figures 7 and 8 
Leptolithodes multispinus Benedict, Proc. U. 8. Nat. Mus., 17, 484, 1894. 
Paralomis multispina Bouvier, Ann. Sci. Nat. (8), 1, 25, 1896. 
Leptolithodes multispina Rathbun, H. A. E., 10, 165, 1904. 
Original Description.—The carapace is about as broad as long; the areolations 
are well defined. On the median line at the summit of the gastric region there is 
a sharp spine about 4 mm. in length. The lateral margins are armed with from 
twelve to sixteen spines about 3 mm. in length. In the young and in some of the 
adults there are small spines on the branchial region. <A semicircular line of six 
or seven spines marks the limits of the branchial and intestinal regions. The 
carapace is thickly studded with blunt spines, each terminating in a flattened face 
or surface cut obliquely to the surface of the carapace; this face is encircled by a 
fringe of short, stiff bristles. The rostrum consists of a simple median spine with 
two basal spines. Under the rostrum proper there is a very short, conical spine 
homologous with the subrostral spine of Lithodes; behind the spine are one or 
more spinules. The abdomen in the male is composed, after the second segment, 
of several rows of leathery plates; the second segment is better calcified and 
harder. The abdomen of the female is twisted to the right as in Lithodes. 
The chelipeds are moderately slender and extend almost to the distal end of 
the carpal joints. The spines on the inner margin of the carpal segments are the 
most prominent. The ambulatory legs are long and slender and thickly set with 
spines. The spines of the merus are not so distinctly arranged in rows as on the 
carpal and propodal segments; there is, however, a distinct row on the upper 
margin. The spines of the carpus are arranged in eight more or less distinct 
rows; on the propodal segment the spines are arranged in six full rows and two 
half rows. There are four short rows of spines on the proximal end of the 
dactylus. The dactyli are compressed, slightly bent, and a little twisted (Bene- 
dict). 
Dimensions.—Specimen of average size: length 80 mm., width 78 mm., distance 
from tip to tip of ambulatory legs 360 mm. (Benedict). 
Type Locality—Off Queen Charlotte Islands, British Columbia, 876 fathoms 
(‘‘Albatross’’ station 2860). 
Distribution—From off Shumagin Bank, Alaska, to off San Diego, California, 
625 to 876 fathoms (Rathbun). 
Paralomis verrilli (Benedict) 
Plate 24; plate 30, figures 5 and 6 
Pristopus verrilli Benedict, Proc. U. S. Nat. Mus., 17, 486, 1894.. 
Paralomis verrilli Bouvier, Ann. Sci. Nat. (8), 1, 25, 1896. 
Pristopus verrilli Rathbun, H. A. E., 10, 165, 1904. 
Original Description—The carapace is verrucose, the areolations prominent. 
The gastric region is much elevated and is surmounted by a small spine. On each 
side, on the border of the branchial region, there is a deep pit. A groove runs 
from the pits to the depression between the gastric and cardiac regions. There 
are about twelve spines, two to three mm. in length on the lateral border of the 
carapace. The posterior boundary of the intestinal region is marked by a semi- 
circular row of tubercles. The cardiac region is triangular; the apex of the 
triangle cuts well into the intestinal region where the depression that marks it 
runs into a deep slit or oblong median depression. The frontal margin is broad 
and straight. The spines of the anterior angles and the orbital spines point 
forward; the orbital spines are a little the longer. Between the spine on the 
angle and the orbit there is a row of smaller spines and one or two granules. The 
trispinose rostrum is composed of a bifureate rostrum proper and the subrostral 
spine which extends much beyond the two upper rostral spines. The antennal 
