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86 



STALK-EYED CRUSTACEA. 



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Munidopsis subsquamosa aculeata Hend. 



Mimidopsis subsquamosa, var. aculeata Hend., Rep. Challenger Anomura, p. 153, Plate XVI. Fig. 1, 1888. 



Station 3382. 1793 fatlioms. 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 in 1375 fathoms, and off the west coast of Patagonia in 1450 

 fathoms. 



This form is closely allied to if. erassa 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 X/X, Fig. 2. 



Bull Mus. Comp, ZooL, XXIV. 182, 1893. 



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

 from low squamous tubercles and transverse ruga) 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 shghtly 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 

 pleura) have rounded external angles. The eyes are freely movable and des- 

 titute of spines. The second antcnnal segment is armed with a prominent 



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* Proc. U. S. Nat. Mus. YIL 494, 1884; Ann. Ecp. U. S. Fish Comra. for 1885, p. G45, Plate 

 IV., 1886. 



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