282 



PROCEEDINGS OF THE NA TIONA L MUSEUM. 



MUNIDOPSIS ESPINIS, new species. 



The rostrum is al)out three times as long as ])road in the middle; 

 the apex is ])lunt. The carapace is ijibout as broad as long, subciuad- 

 rate; the antero-lateral angle is formed by a broad, triangular, blunt 

 tooth, which projects l)eyond the base of the rostrum. The margin 

 between the rostrum and the tooth is divided by a triangular projec;- 

 tion into two parts; the inner part is semicircular. In this the eye is 

 immovably fixed both to the front and rostrum. On the margin 

 behind the antero-lateral tooth is a double-pointed tooth; behind this 

 and in front of a deep transverse depression is a small tooth. 



Fk;. 'JS.— Munidopsis ESPINIS, X 2^ 



This species is altogether without spines, with the exception of two 

 on the merus of the maxillipeds. 



The carapace is 7,5 mm. in each dimension. 



Locality.— Albatnjfi.s, station 2351, 426 fathoms, ofi' Yucatan, 



Ti/pe.—Odt. No. 20559, U,S.N.M. 



MUNIDOPSIS EXPANSA, new species. 



The front extends forward horizontally and ends in two points and" 

 a sharply upturned rostrum. The carapace is ver}'^ broad, and, except- 

 ing on the margin, is altogether devoid of spines; the surface is rather 

 crowded with short, semicircular, raised lines; the antero-lateral angles 

 are formed by triangular teeth, the points of which are directed for- 

 ward; behind the angles are two teeth on a small lobe and a third one 

 at about the middle of the margin. The merus of the maxillipeds is 

 unarmed. The distal margins of the meral joints of both the chelipeds 



