NO. 1162. BRA CHYURA COLLECTED B Y THE A LB A TB0S8—IU TUB UN. 613 



bears at its proximal end a strong acute spine projecting obliquely 

 backward. Terminal segment long and narrow. 



Merus of chelipeds cylindrical, length less than twice the thickness. 

 Carpus, propodus, and dactylus with a thin, acute crest. Palm 

 swollen, lower margin very convex; fingers as long as the palm, not 

 gaping. Ambulatory legs armed above with small spinules. 



Dimensions. — Male: Length on median line, 9.G mm. 5 width, 10 mm. 



Type.—^o. 21599, U.S.N.M. One male. Off Abreojos Point, Lower 

 California, 48 fathoms, station 2834. 



142; LITHADIA CUMINGII Bell. 



Lithadia cumingii Bell, Trans. Linn. Soc. London, 1855, XXI, p. 305, pi. xxxiii, 

 ligs. «, 7. 



Southern part of Gulf of California, 2Gi fathoms, station 2823, one 

 female; Magdalena Bay, Lower California, 51 fathoms, station 2833, 

 one young female. 



Bell's description and figures were made from males only. The 

 females are much broader than long, but the elevations and depressions 

 are arranged as in Bell's Plate XXXIII, fig. 7; the ridges are acute; 

 the tubercles in the depressions are flat-topped. 



Dimensions. — Adult female: Entire length, 11.7 mm; Avidth 14 mm. 

 Young female: Entire length, 7.5 mm; width, 8.6 mm. 



143, PERSEPHONA TOWNSENDI Rathbun. 



Miiru townsendi Rathbun, Proc. IT. S. Nat. Mus., 1893, XVI, p. 255. 



Panama Bay, 7 and 14 fathoms, stations 2800 and 2801. 



Persephona and 3Iyra are separated by too slight characters. There 

 is every gradation between the curved outer margin of the maxilliped 

 of 3Tyra fugax and the nearly straight margin in Persephona punctata.) 

 and also between the elongated chelipeds of the former and the short, 

 partly flattened chelipeds of the latter. 



144. PERSEPHONA SUBOVATA Rathbun. 



Mtjra suiovata Rathbun, Proc. U. S. Nat. Mus., 1893, XVI, p. 256. 

 Panama Bay, 33 and 51^ fathoms, stations 2795 and 2805; off Abre- 

 ojos Point, Lower California, 48 fathoms, station 2834. 



145. RANDALLIA ORNATA (Randall). 



Ilia ornata Randall, Jour. Acad. Nat. Sci. Phila., 1839, VIII, p. 129. 

 BandalUa ornata Stimpson, Proc. Boston Soc. Nat. Hist., 1857, VI, p. 85; Jour. 

 Boston Soc. Nat. Hist., 1857,. VI, p. 471 [31], pi. xx, fig. 3. 



Magdalena Bay and off Abreojos Point, Lower California, 5^^ to 51 

 fathoms, stations 2833, 2834, and 2835. 



