NO.lSll. 



SOME NEW DEEP SEA CRUSTACEANS— BENEDICT. 



285 



having- sharp procurvod points, especially those near the sides of the 

 carapace; the gastric area has two large spines of this nature and 

 numerous smaller ones. There are two on the median line on the 

 cardiac area. The posterioi" margin of the carapace is raised, the 

 middle third is free from spines, 1)ut on either side of this space is a 

 pair, rather large and procurved. 



The chelipeds are about thi-ee times the length of the carapace, not 

 including the rostrum; the merus is set with rows of elongated gran- 

 ules, the middle inner surface is set 

 with three sharp spines on one 

 cheliped and with two on the other; 

 there are three spines on the distal 

 margin. The armature of the car- 

 pus is similar; the palm is thickly 

 set with small spiny granules below, 

 large ones run along the upper mar- 

 gin in a well-formed line. There 

 is a line of hair along the ridge of 

 the movalde linger; the hiatus 

 formed by the lingers is set with 

 hair. The ambulator}' feet are 

 thickly set with spiny granules. 



The second, and third segments 

 of the abdomen are armed with 

 spines, the second segment has two 

 spines in a central position on the 

 posterior margin, and a paired 

 group of two on the surface nearer 

 the side; the third segment has a spine on the median line on the ante- 

 rior margin and a pair separated b}^ the line on the posterior margin, 

 also smaller spines near the sides. 



The carapace of the largest specimen, a female without eggs, is 9.5 

 mm. in length measured from the orbit, and 8 mm. in width; the 

 chelipeds are 28 mm. in length, the palm at the base of the dactyl is 

 3.3 mm. in width, the lingers are 4.5 mm. long, and the palm 6.8 mm. 



Three specimens were taken at Alhah'oss station 3697 in 265-120 

 fathoms, off Honshu Island, Japan. 



Ti/jje.— Cat No. 26164, U.S.N. M. 



MUNIDOPSIS MINA, new species. 



The rostrum is a!)out as long as broad, measured from its base to 

 the base of the lateral points. The distance between the lateral points 

 is about live-eights of the length of the base. The carapace is elon- 

 gated; the sides are slightly arcuate and armed with four short spines. 



There are two short spines on the gastric area, as in 21. tridens 



Fig. 2S.— MUNIDOPSIS hastifp:r, 



