41(3 CRUSTACEA. 



Valparaiso ? 



Length of carapax, 8-2 lines; breadth, 84 lines. Colour, dark 

 brown with interrupted lines of brown and yellow, especially on poste- 

 rior part of carapax. The species differs from both the violacea and 

 granulosa in the hairs of the outer antennae ; it has the lateral margin 

 nearly, the orbit, the granulous carpus and hands, and the hirsute 

 extremity of the fourth pair of legs, of the granulosa; but the broad 

 third joint of the same legs, the plane beak without a medial depres- 

 sion or furrow, are as in the violacea. The villous covering on the 

 hand near its outer margin is also characteristic. 



PORCELLANA VIOLACEA, Guerin. 



Plate 26, fig. 6 a, part of flagellum of outer antennae, from near its 

 middle, enlarged ; Z>, extremity of leg, natural size. 



Among stones, along the shores of the Bay of Valparaiso. 



Length of carapax, 9'8 lines; breadth, 1O2 lines; ratio, 1 : 1'04. 

 Colour, fine blue and purplish blue. The outer antennae are long, and 

 the flagelluin is without hairs, excepting a few that are shorter than 

 the joints and inconspicuous. The fourth joint of the second, third, 

 and fourth pairs of legs is naked, and so also the fifth, excepting near 

 tip, and a single range on the outer lateral surface in fourth pair ; on 

 the inner surface near lower margin there are three or four minute 

 spines, the line terminating in one or two at the lower apex of the 

 joint. 



Porcellana violacea, GUERIN, Bull. Soc. Sci. Nat. de France, S6anee du 23 De"c., 

 1835, p. 115; Mag. de Zool., 1838, p. 5, pi. 25, f. 2; EDWARDS, Crust., ii. 250. 

 P. macrocheles, P(EPPio, Crust. Chili, Wiegm. Arch., 1836, p. 142, pi. 4, f. 1. 



PORCELLANA GRANULOSA, Guerin. 



Plate 26, fig. 7, part of flagellum of outer antennae, from near its 

 middle, enlarged. 



