MEXICAN, CENTRAL AMERICAN, AND CUBAN CAMBARI 7 
outer and inner sides, the hairs extending upon the distal part 
of the palm. (In young individuals, the pilosity is less marked 
or even absent.) Carpopodite and meropodite granulated, and 
with a few granules developed into sharp spines on the inner 
and lower sides (indistinct in old individuals); third pereiopods 
hooked in the male; first abdominal appendages of male with 
inner part pointed and straight, longer and much thinner than 
the broad and blunt outer part; shoulder of anterior margin 
only slightly developed; inner face flattened and only slightly 
dilated. Annulus ventralis of the female conically elevated. 
Description of adult male of the first form: 
fostrum subplane, margins elevated, gradually convergent, 
slightly convex, chiefly so anteriorly, with a distinct marginal 
spine on each side a short distance from the tip; acumen trian- 
gular, rather short, shorter than width of rostrum at base; mar- 
gins of acumen hairy; fostorbital ridges subparallel, ending 
in a spine anteriorly; carapace compressed, thickly and finely 
punctate, and finely granulated on the sides; suborbital angle 
blunt; branchiostegal spine small; cervical groove sinuate, two 
lateral spines on each side behind the cervical groove; areola 
very narrow, but not obliterated, with one irregular row of punc- 
tations, longer than half of the anterior section of the carapace 
(including rostrum). 
Abdomen about as long and as wide as the carapace; basal 
segment of telson with two (rarely three) spines on each side; 
posterior segment broadly rounded, short. 
Epistoma with anterior part triangular, obtuse; axtennal 
scale broad, broadest: in the middle; flagellum longer than the 
carapace, but shorter than the whole body. 
First peretopods elongated, subcylindrical; hand elongated, 
slightly compressed, with subparallel margins, widest at the base 
of the fingers; surface thickly granulate, granules tuberculi- 
form, rounded, very distinct, subequal; fingers about as long 
as the palm, both on outer faces with a smooth longitudinal 
ridge; for the rest, the fingers are thickly pilose on outer and 
inner side, the pilosity extending a short distance upon the palm 
on both faces; carpopodite subcylindrical, with an indistinct, 
longitudinal sulcus on upper side; granulated everywhere, gran- 
