MUNIDOPSIS SUBSQUAMOSA. 85 



Munidopsis vicina Fax. 

 Plate XVIII., Fig. 2, 2\ 



Bull. Mas. CoLup. ZooL, XXIV. 181, 1S93. 



Near M. ciliata, from which it differs as follows : it is a very much smaller 

 species, the adult ovigerous female being only twenty-nine millimeters long ; 

 the anterior margin of the propodite of the ambulatory appendages bears two 

 very prominent spines ; on comparing the telson of M. vicina with that of 

 M. ciliata a marked difference is apparent in the division of the telson by 

 sutures, — a difference most readily comprehended by a glance at Figs. 2 and 

 3 of Plate XVIII. The pair of long and narrow plates which lie on each side 

 of the small central plate in M. ciliata are entirely wanting in 31. vicina. As 

 in AI. ciliata, the carapace of M. vicina is covered with squamoid tubercles, the 

 rostrum is curved slightly upward, and the chela is short. 



Length, 29 mm. ; breadth, 9.5 mm. 



Station 3360. 1672 fathoms. 1 fern. 



3382. 1793 " 1 fem. ovig. 



The specimen from Station 3360 is a smoother, less setose form than the 

 specimen from Station 3382. 



Munidopsis subsquamosa Hexd. 



Ann. Mag. Nat. Hist., 5tli Ser., XVI. 414, 18S5 ; Rep. Challeuger Anomura, p. 152, Plate XVII. 



Pig. 4, 1888. 



Station 3360. 1672 fathoms. 1 male. 

 3361. 1471 " 1 fem. 



The rostrum is curved upward to a considerable degree in the " Alba- 

 tross " specimens (most strongly in the female), and there are but three 

 spines on the gastric area, — two in a transverse line at the base of the ros- 

 trum, and a smaller one in the median line a little further behind. The 

 outer or lower margin of the hand, too, is more concave than in Henderson's 

 figure of M. subsquamosa. 



The types of this species Avere taken off Japan in 1875 fathoms. A 

 nearly allied form, M. subsquamosa pallida Alcock,* has been dredged in the 

 Bay of Bengal, 1803 fathoms. 



» Anu. Mag. Nat. Hist., 6ih Ser., XIII. 331, 1894. 



