290 



PROCEEDINGS? OF THE NATIONAL MUSEUM. 



MUNIDOPSIS TOWNSENDI, new species. 



The carapace is a little longer than wide, measuring- from the base 

 of the rostrum. In shape it is almost as quadrate as 3f. qKadratus 

 Faxon. The areolations are jjrotuberant, and the entire surface is 

 thickly set with tubercular granules subequal in size. These granules 

 extend to the end of the rostrum. The rostrum is short and narrow, 

 extending but little beyond the eyes. A tooth on the margin behind 

 the antennae forms the outer angle of the orbital sinus. 



The posterior margin is armed with granules of the same size and 

 character as the surface of the carapace. 



The second and third segments of the abdomen are armed each with 

 a large tubercle; the tubercles and the surfaces of the segments are 



covered with the same granulations as the 

 carapace; the other segments are smooth. 

 The upper surface of the merus of the 

 cheliped is armed with about fifteen short 

 and very stout syjines; the lower surface is 

 semicylindrical and smooth; the carpus is 

 armed with nine to twelve short tubercles. 

 The palm is rather longer than the fin- 

 gers and a little narrower. On the outer 

 surface, in line with the gape of the 

 lingers of the right hand, are the three 

 largest spines on the cheliped; near the 

 crest and parallel with the line of large 

 spines is a row of very much smaller ones. 

 The lingers are compressed, thin, and 

 evenly toothed on the prehensile edges. On the left hand the three 

 spines behind the gape are replaced by six smaller ones, and one or 

 two of the parallel rows are hardly indicated. 



The merus of the ambulatory feet is tubercular or spiny on the distal 



half, the carpus is tubercular, and the propodus is smooth with the 



exception of a lino of three to four conical spines on the upper surface. 



The dactyls are short and nuu-h curved. The merus of the maxilli- 



peds is armed with two short, stout spines. 



Length of carapace, from base of rostrum, 7 mm. ; greatest width, 

 8 nun. 



Named for Mr. C. H. Townsend, who served as naturalist on the 

 U. S. Fish Conunission steamer AJhatrosn. 

 The type is a female with eggs from Albatross station 2818. 

 Type.—Q2X. No. 26107, U. S. N. M. 



Fig. 33.— MUNIDOPSIS townsendi, 

 a X 3^, ?) X 2. 



