FROM THE MONTE BELLO ISLANDS. 655 
type; it has not so longa rostral tooth, and consequently the 
sinuses between that tooth and the orbital prominences are not 
so deep; the antennal peduncle is not so long as in Coutiére’s 
fig. 29, although it is a little longer than the antennular peduncle ; 
the merus of the larger cheliped has a tooth at the lower distal 
angle, not unlike the tooth shown in Coutiére’s fig. 29 a’, but he 
says (p. 821) “le méropodite est inerme,” and in the figure, the 
tooth is applied against the carpus so that it is inconspicuous. 
Family PALHMONIDS®. 
Subfamily Pontoniine. 
PERICLIMENES HERMITENSIS, sp. n. (PI. I. figs. 1-3.) 
Hermite; under rock; Aug. 17, 1912; No. 159, 1 2 ovig. 
Dimensions. Type @, length from: tip of rostrum to tip of 
telson, approx., 39 mm.; length of carapace, 14 mm. 
A Perielimenes with thorax strongly arched from front to back 
as well as from side to side. Rostrum reaching to middle of 
third segment of antennular peduncle, compressed, thin; upper 
margin convex, armed with six teeth, the posterior of which is 
slightly behind the orbit ; tip acute ; lower limb shallower than 
upper, margin slightly convex, unidentate. An antennal and an 
hepatic spine present; no supraorbital spine. Branchiostegal 
angle of carapace rounded. Eyes small. Seale of antennulee 
narrow-ovate, reaching nearly to end of second segment, basal 
spine curved, acuminate. Peduncle of antenne reaches just to 
end of first segment of antennul, basal spine small; scale ovate- 
oblong, most produced at inner angle, its outer spine small, scale 
reaching beyond the peduncle of the antennule but not so far as 
their flagella; the flagellum of the antenne when bent back 
reaches half the length of the abdomen. 
The added lengths of the last two articles of the third maxilliped 
exceed that of the antepenultimate article. The chelipeds of the 
first pair when extended reach beyond the acicle by the length of 
their chelze ; merusand carpus subequal, manus 13 times as long as 
fingers and 2 as long as carpus. Chelipeds of second pair sub- 
equal, reaching beyond the acicle by the length of the chele ; 
merus cylindrical, unarmed; carpus cup-form, a large V-shaped 
notch in the lower, outer portion of the distal margin; manus 
subcylindrical, gradually widening a little distally ; fingers nearly 
as long as palm, prehensile edges entire and meeting or over- 
lapping when closed except at the base, where there is a very low 
tooth on the fixed finger between two similar ones on the dactylus ; 
tips spiniform, turned sharply toward each other. 
The dactyli of the third, fourth and fifth feet are short 
(about 1 as long as the propodi), curved ; lower margin convex at 
the base, but without spines or other protuberance. 
The first three segments of the abdomen are very broad ; sixth 
segment not much longer than wide and 2 as long as the telson ; 
