150 BULLETIN OF THE 
ously granulated. The post-orbital spines are even more coarsely tuberculated. 
When viewed from above their margins appear laciniated. Surface of abdo- 
men thickly set with bead-like tubercles ; the first segment bears a prominent 
granulated spine, and there is a rudimentary spine on each of the three follow- 
ing segments. Chela slender, covered with small tubercles ; the remaining 
segments of the cheliped and the ambulatory appendages are furnished with 
small spines, tubercles, and scattered curled sete. 
Length of carapace, 7 mm.; breadth, 6 mm. 
Station 3369. 52 fathoms. 2 females. 
Anamathia occidentalis, sp. nov. 
Carapace pyriform, furnished with spines and tubercles which are arranged 
as follows: four on the gastric region (two in the median line, two lateral) ; 
the posterior median has the form of a tubercle, from which a low blunt keel 
runs back to the cardiac region; one on the cardiac region, one (tubercle) on 
the intestinal region, one on each hepatic region, five on each branchial region. 
Of the branchial spines the one near the middle projects upward and forward, 
the longest spine of the carapace, one half as long as the rostral horns. In ad- 
dition to these spines and tubercles there are four or five small tubercles on 
the outer border of the pterygostomian region. Rostrum produced into two 
divergent awl-shaped horns, which are more than one fourth the length of the 
carapace. Pre-orbital spines acute, post-orbital processes obtuse. Chelipeds 
twice as long as the carapace, not much more robust than the ambulatory 
limbs; chela little longer than the merus, the basal part cylindrical, distal ~ 
part gradually widening to the base of the fingers; fingers smooth, slightly 
curved, less than one half as long as the basal portion; prehensile edges 
regularly dentate, closing throughout their length. The merus of all the 
legs has a small tubercular projection at the distal end above, most prominent 
on the anterior pair. The carpus of the chelipeds has two low ridges on the 
outer face. Abdomen seven-jointed. 
Length of carapace without the rostral horns, 45 mm.; length of rostral horns, 
12 mm. ; breadth of carapace, 38 mm. 
Station 3404. 385 fathoms. 1 male. 
MAIOPSIS, gen. nov. 
Carapace subtriangular, as broad as long, spinose ; rostrum produced ante- 
riorly into two divergent horns with an accessory spine upon their outer 
margins; interorbital space broad. Eyes small, eyestalks slender, retractile 
within the orbits. Orbits large, with a forward aspect, incomplete below, the 
upper margin prominent, with two deep fissures, and supra-ocular spines. 
Epistome short. Basal segment of antenne very broad, with three prominent 
spines upon its anterior margin; flagellum of the antenne widely separated 
