NATURAL SCIENCES OF PHILADELPHIA. 239 



of branchial region. Tooth on superior margin of orbit obtuse ; 

 orbit obtuse at external angle. External antennas ciliated ; ros» 

 trum slightly reflexed, more so in female than in male. The chcli- 

 peds larger in male than in female, smooth, with exception of arm, 

 ■which presents a row of tubercles on upper surface; covered with 

 rounded spots of a violet-red color. Fingers closely approximated 

 and finely denticulated at extremity ; in female approximated 

 along their whole length. Two or three rudimentary tubercles 

 on third article of second pair of feet. A deep red spot at tlie 

 projecting lateral angle of carapax. Color reddish shade. Length, 

 1.37 inch; breadth, .9-1 inch. 



Subfamily Mitiiracin^. 

 Mithraculus coronatus, Stimpson. An. Lye. Nat. Hist. N. Y., vol. VII., p. 186. 



CANCROIDEA. 

 Family CANCRID^. 



Subfamily Xanthine. 



Carpilius corallinus, M. Edw. Hist. Nat. d«s Crust., torn. I., p. 381. 



Actaea labyrinthica, Stimpfon, An. Lye. Nat. Hist. N. Y., vol. VII., p. 204. 



Menippe mercenaria, Stimpson. Cancer mercenaria, Say. Journ. Acad. Nat, 



Sei. Phila., vol. I., p. 448. 



Panopaeus chilensis, EJw. et Lucas. D'tDrbigny's Voy. en Am. Merid., Crust., p. 

 16; pL VIII., fig. 1. 



Family ERIPHIDJE. 



Subfamily Eriphin/E. 



Eriphia gonagra, M. Edw. Hist. Nat. des Crust., tvm. I., p. 426, pi. XVI., figs. 16 

 and 17. Dana. U. S. Expl. Esped., Crust., vol. I., p. 25'0. 



Family PORTUNID^E. 



Subfamily Lupin,.e. 

 Xupa dicantlia, M. Edw. Hist. Nat. des Crust., torn. I., p. 451. Dana, U.S. E.xpl. 



Exped., Crust., vol. I., p. 272, pi. XVI., fig. 7. 

 Lupa rubra, M. Edw. Hist. Nat. des Crust., tool. I., p. 454. 



ISTI.] 



