Boone, Crustacea, Cruises of "Eagle" and "Ara," 1921-28 55 



31, fig. 1, 1852. — Desmarest, Consid. sur la classe des Crust., p. 



287, 1825. 

 Grimotea sociale, Grimotea gregaria Guerin-Meneville, Crust. Voy. 



''La Coquille," Zool., vol. 2, pi. 3, fig. 1, p. 33, 1830. 

 Grimothea nova zelandiae Filhol, Passage de Venus, Mission de 



I'lle Campbell, p. 426, 1874 (Institute de France). 

 Munida gregaria Miers, Proc. Zool. Soc. London, p. 73, 1881. 

 Munida subrugosa Henderson, "Challenger" Report, vol. 27, 1888, 



Anomura, p. 124. 

 Munida gregaria A. Milne Edwards, Mission Scient. du Cap Horn, 



Crust., p. 32, pi. 2, fig. 1, 1891.— Benedict, Proc. U. S. Nat. Mus., 



vol. 26, p. 308, figs. 45 and 46, 1902. 

 Munida cokeri Rathbun, Proc. U. S. Nat. Mus., vol. 38, p. 559, pi. 



53, fig. 5, 1911. 



Munida stimpsonl A. M. Edwards. 



Plate 13. 



Type : The type series of specimens was taken at several stations in 

 the West Indies, by the "Blake" and is deposited in the Museum of 

 Comparative Zoology; paratypes are in the Museum National d'His- 

 toire Naturelle, Paris, and the United States National Museum. 



Distribution : West Indian region ; deep-sea, ranging from shallow 

 water of the "Ara" record which is a very young specimen, to 

 180-1105 fms., for the larger adults of the "Blake" and "Challenger" 

 records. 



Material examined : One very young specimen, from Porto Padre, 

 Cuba, 2 fms., taken by the "Ara." 



Technical description : This specimen, which is a very young one, 

 conforms to Dr. Benedict's M. flinti, from the northern part of the 

 Gulf of Mexico in every respect, especially in the fact that it is less 

 spinose or granulose than is M. affinis. I believe that this is due to the 

 juvenile character of my specimen and in the light of the knowledge 

 of the extreme variation in this phase of the many species which have 

 come to my attention in larger series, I am convinced that M. affinis 

 presents an extreme form of development of the granulose carapace, 

 of which M. stimpsoni may be considered the type form, and M. flinti 

 the other extreme, approaching a nearly non-granulose carapace. The 

 major spines of the three do not differ. 



The rostral spine is twice as long as the eye, comparatively smooth, 

 the supraorbital spines acute, almost but not quite as long as the orbit, 



