MUSEUM OF COMPARATIVE ZOOLOGY. 187 



below the anterior margin of the carapace. The abdomen is devoid of spines, 

 the pleurae have truncated lateral angles. A spine projects over the cornea of 

 the eye. The antennse are shorter than the body ; a spine on the outer side 

 of the basal joint, one on each side of the second joint, and one on each side 

 and one on superior margin of third joint. The chelipeds are long, spinose, 

 except the fingers ; hand long, the basal part longer than the, fingers. All the 

 joints of the ambulatory appendages are spiny except the dactyli. 



Length (ovigerous female), 40 mm. ; length of carapace, 13.5 mm.; breadth, 

 14 mm. ; rostrum, 5 mm. 



Station 3424. 676 fathoms. 2 males, 1 female ovig. 

 " 3425. 680 " 1 male, 1 female ovig. 



Munidopsis tanneri, sp. nov. 



Carapace flat, quadrangular, covered with squamous setiferous tubercles 

 which have a tendency to develop spiny points on the gastric region. This 

 is especially true of a transverse row of six on the anterior part of that region. 

 The rostrum is triangular and horizontal. There is a prominent spine on each 

 side of the anterior margin of the carapace between the eye and the antenna, 

 another at the antero-lateral angle, and two or three on the side of the hepatic 

 area; the hind border of the carapace is denticulated. A small spine over the 

 eye. Antennas shorter than the body ; one spine on the outer side of the first 

 joint, two lateral and one superior on the second and third joints. Cheliped 

 (present in only one specimen) long, slender ; merus and carpus many-spined ; 

 propodus spiny along the upper and lower margins ; tips of fingers enlarged 

 and denticulated. Ambulatory limbs : a prominent row of spines on the upper 

 edge of the merus and carpus, propodus and dactylus devoid of spines. Abdo- 

 men without spines ; pleurae narrow, angles rounded. 



Length, 41mm.; length of carapace, 23.5 mm.; breadth, 15.5 mm.; rostrum, 

 6 mm. 



Station 3396. 259 fathoms. 2 males, 1 female (1 male with Bopyrus). 

 " 3397. 85 " 1 male. 



This species is nearly related to M . scabrosa, but differs from the latter spe- 

 cies in having the carapace broader and flatter, with squamous tubercles which 

 are not produced into points except a few on the gastric area. The spine be- 

 tween the eye and the antenna is longer ; the propodi of the ambulatory legs 

 are smoother, with no well-developed spines. 



Munidopsis hamata, sp. nov. 



Body and limbs clothed with short, scattered seta?. Eostrum long, curved 

 slightly upward, basal half furrowed longitudinally, with a row of short spines 

 on each side of the furrow ; infero-lateral edges of rostrum also furnished with 

 small spines. Carapace quadrangular, anterior border forming a right angle 

 with lateral border, both borders spinulose ; lateral border with an indentation 



