184 University of California Publications in Zoology [VoL. 238 
Genus Homola Leach, Alcock 
Carapace deep, longer than broad, more or less quadrilateral, or urn-shaped, 
with deep vertical sides; gastric region well demarcated and occupying the 
anterior half of the carapace; hepatic region well developed, hepatic (or antero- 
lateral) spine some distance behind the level of the supra-orbital spine; linea 
anomurica distinct and dorsal; front narrow, forming a rostrum, which is either 
entire or bifid, and has a spine, often of large size, on either side of its base. 
Propodus of last pair of legs dilated near basal end and never twice the length 
of the dactyl. 
Homola faxoni sp. nov. 
Plate 31, figure 7 
Description.—Carapace more or less quadrilateral, exclusive of rostral spine, 
a little longer than broad, greatest width at about posterior fourth of carapace; 
entire surface more or less obscured by a rather thick, short pubescence. 
The supraorbital spines, one on either side of the base of the rostrum, are 
quite stout, surpassing the rostrum both in size and length, and each on its upper 
or posterior margin is provided with two small, hooked spines. Behind and a 
little closer together than the supraorbital spines there are two much less promi- 
nent ones on the anterior part of the gastric region. External to each of these 
there is a spine of like size, about in line with the tubercle on the apex of the 
gastric convexity and the superior hepatic spine at the anterolateral angle of the 
carapace; a tubercle also between the median gastric tubercle and the outermost of 
the anterior gastric spines, one on each side. The hepatic region is well developed 
and below the stout spine at anterolateral angle of the carapace there is a smaller, 
inferior hepatic spine. Marking the lateral margin of the dorsal surface of the 
carapace behind the superior hepatic spine is a row of four slightly smaller spines 
on the branchial region, paralleling the linea anomurica, and decreasing in size 
from before backward. There are sundry other tubercles rather regularly 
arranged in more or less definite groups on the various regions of the carapace. 
Hairs covering chelipeds and legs longer than those on carapace; row of sharp, 
. hooked spines on upper margin of merus of all except the last pair of legs, the 
largest of the series overhanging the articulation with the carpus at the superior 
distal angle of the joint; a spine, similarly placed, occurs on the merus of the 
last pair of legs; fingers of chelipeds one-third the entire length of the hand, 
and dark colored. 
Abdomen also thickly pubescent, two basal segments, each armed with a sharp 
median tubercle. 
Dimensions.—Type, female (Cat. No. 53331, U. S. N. M.): length of carapace, 
including rostrum 45 mm., of rostrum 5 mm., greatest width of carapace 36 mm., 
length of last leg to distal extremity of propodus 66 mm., of next preceding leg 
to distal extremity of merus 47 mm. 
Type Locality Off Point Loma, 67 to 73 fathoms (‘‘Albatross’’ station 
4309). 
Distribution.—Only known from off Point Loma, about southwest eight to ten 
miles, 67 to 135 fathoms. 
Remarks.—This species is most closely related to Homola cuviert (Risso) (see 
Roux, Crust. Médit., p. 86, pl. vii, 1828, and Milne Edwards and Bouvier, Expéd. 
Sci. du Travailleur et Talisman, Crustacés décapodes, pt. 1, p. 10, 1910) of the 
Cine ee 
