58 Bulletin, Vanderhilt Marine Museum, Vol. Ill 



both placed above the base of the second joint, while below it is another 

 similar, two-jointed spine. 



The antennae have the basal joint armed with an acute spine at the 

 outer distal angle ; the second article has two spines, one at the upper 

 and one lower, outer distal angle; the third article has one very long 

 spine at the outer distal angle; the flagellum is about as long as the 

 chelipeds and consists of 75 rings. 



The external maxillipeds have the ischium wider distally and armed 

 with an acute tooth at the outer distal angle; the merus is slightly 

 longer than the carpus and is armed with two very acuminate, conical, 

 outpointing teeth on the lateral margins and with the distal margin 

 excavate, its outer angle forming a short, acute tooth ; the palp is long, 

 three-jointed, ciliated. 



The chelipeds are equal, of moderate size, 52 mm. long, the ischium 

 produced to an acute point on its inferior distal margin ; the merus is 

 roughened by rugose scales, with three or four spines on the inner 

 lateral margin and with three at the respective angles of the dis- 

 tal margin ; the carpus is similar to the merus but only one-third as 

 long, with three acute spines at the distal margin, two above, one 

 ventral; the propodus is about as long as the merus, with the palm 

 slightly longer than the fingers, cylindrical; the fingers are slender, 

 subequal, cutting edge finely, regularly crenulated, tips curved, meet- 

 ing. The entire cheliped is covered with rough, squamous rugae. 



The second, third and fourth legs are similar, slightly decreasing in 

 length posteriorly; the merus cylindrical, elongate, rough with gran- 

 ules; the carpus short; the propodus very slender, about as long as 

 the merus; the dactyl is about two-thirds as long as the related pro- 

 podus, curved, acuminate and armed on its inferior lateral margin 

 with a continuous row of stout, short spines, between which are tufts 

 of short setae. 



The fifth legs are short, rudimentaty, reflexed upon the back, sub- 

 chelate, with the propodus and dactyl furnished with a brush of long 

 setae. 

 Synonymy. — Galathodes simplex A. Milne Edwards, vol. 8, p. 56, 



1880. 

 Munidopsis simplex A. Milne Edwards and E. L. Bouvier, Ann. des 

 Sci. Nat. Zool. (7), vol. 16, p. 275, 1894; Mem. Mus. Comp. Zool., 

 vol. 19, No. 2, p. 89, pi. 5, figs. 2-7, 1897.— Benedict, Proc. U. S. 

 Nat. Mus., vol. 26, p. 326, 1902. 



