86 STALK-EYED CRUSTACEA. 



Munidopsis subsquamosa aculeata Hend. 



Muxidopsis subsquamosa, var. aculeata Hend., Rep. Challeuger Anomura, p. 153, Plate XVI. Fig. 1, 1888. 



Station 3382. 1793 fathoms. 2 males, 1 fern. 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 iu 1375 fathoms, and off the west coast of Patagonia in 1450 

 fathoms. 



This form is closely allied to M. 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. Zool., XXIV. 182, 1893. 



The whole surface of the body and limbs is beset with setae which arise 

 from low squamous tubercles and transverse rugte on the carapace and from 

 the transverse ridges of the abdominal segments. The ro.strum is triangular, 

 the di.stal 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 

 pleurae 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. 



