96 STALK-EYED CRUSTACEA. 
Munidopsis depressa Fax. 
Plate XXII, Fig. 2, 2, 2. 
Bull. Mus. Comp. Zodl., XXIV. 189, 1893. 
Closely allied to MZ. hamata, but differs as follows: the cephalothorax is 
more swollen, so that the sides of the carapace are visible below the epimeral 
sutures when the animal is viewed from above. The median row of spines 
on the carapace consists of a smaller number of spines (two on the gastric 
region, one on the cardiac region, and one on the posterior margin). The 
spinules of the lateral margin of the carapace are less developed. The de- 
pression on the carapace involves the gastric region to a greater degree. 
The anterior margin of the carapace is not so straight, and it is not spinulif- 
erous. The antero-lateral spine is more prominent, the eyes smaller, and 
the antenne shorter (shorter than the carapace). There is, moreover, no 
spine on the fifth abdominal segment. 
Length, 32 mm.; carapace, 19 mm.; rostrum, 5 mm.; breadth of cara- 
pace, 12.5 mm. 
Station 3425. 680 fathoms. 1 male. 
Munidopsis aspera (Henp.). 
Elasmonotus asper Wexp., Aun. Mag. Nat. Hist., 5th Ser. XVI. 416, 1885; Rep. Challenger Anomura, 
p- 163, Plate XIX. Fig. 4, 1888. 
Munidopsis aspera Fax., Bull. Mus. Comp. Zodl., XXIV. 188, 1893. 
Station 3357. 782 fathoms. 1 fem. ovig. 
SB00, A000 ec 1 male. 
« €= 3370. +134 1 fem. 
oe 3402.5 421 es 2 males, 5 fem. (3 ovig.). 
« 3403. 384 « 1 male. 
KS 4 002% Sao! ef 2 males. 
This species is subject to considerable variation. In the specimens from 
Stations 3402, 3403, and 3406, the tubercles of the carapace are more numer- 
ous and less spiny than in those secured at the other stations. The ambula- 
tory appendages of all the “ Albatross” examples are apparently more spiny 
than in the types from the “Challenger.” The latter came from the Straits 
of Magellan, 245 fathoms. 
