86 STALK-EYED CRUSTACEA. 
Munidopsis subsquamosa aculeata Henp. 
Munidopsis subsquamosa, var. aculeata Henv., Rep. Challenger Anomura, p. 153, Plate XVI. Fig. 1, 1888. 
Station 3382. 1793 fathoms. 2 males, 1 fem. ovig. 
The rostrum is shorter than is represented in Henderson’s figure. In the 
two males the hind border of the sixth abdominal somite is produced in the 
median line into a prominent rounded process. ‘The outline of the telson in 
Henderson’s figure is apparently very incorrectly drawn. 
The eggs measure 3 X 3.3 mm. 
The “ Challenger” specimens were captured between Marion Island and 
the Crozets in 1375 fathoms, and off the west coast of Patagonia in 1450 
fathoms. 
This form is closely allied to IZ. crassa Smith,* from off the east coast of 
the United States, 1742-2620 fathoms. The latter species is distinguished by 
its large rostrum and the spine which projects from the outer edge of the 
eye-stalk just behind the cornea. 
Munidopsis villosa Fax. 
Plate XIX., Fig. 2. 
Bull. Mus. Comp. Zodl., XXIV. 182, 1893. 
The whole surface of the body and limbs is beset with setse which arise 
from low squamous tubercles and transverse rugee on the carapace and from 
the transverse ridges of the abdominal segments. The rostrum is triangular, 
the distal half strongly upturned, cylindrical and pointed, the proximal half 
naked below and slightly carinated in the median line. A pair of tubercles 
ending in spiny points lie on the anterior part of the gastric region. One 
spine at antero-lateral angle of carapace, one at the front end of the anterior 
branchial lobes, and a rudimentary one further behind on the side of the 
branchial region. Frontal border armed on each side with a spine over the 
base of the antenna. There is a median spine on the second, third, and fifth 
abdominal segments, and a rudiment of one on the fourth. The abdominal 
pleurz have rounded external angles. The eyes are freely movable and des- 
titute of spines. The second antennal segment is armed with a prominent 
* Proc. U. S. Nat. Mus. VII. 494, 1884; Ann. Rep. U. S. Fish Comm. for 1885, p. 645, Plate 
IV., 1886. 
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