CRUSTACEA. 



Inner edges of fingers of female denticulate throughout. 



The genus Pisoides resembles Hyas in the flattened farm of the 

 moveable basal joints of outer antenna, but the first basal joint is large 

 quadrate and the epistome is very narrow. 



Eyas Edwarddi, Bell, Trans. Zool. Soo. London, ii 40 1835, pi. 9 fig. 5 

 Pisoides tuhercnlosus, M. Edwards, Crust. D'Orbigny s Voy S. A. p. 11 pi. 5 fig. 1. 



This figure represents the animal without its villous coat, and hence differs from that by 



Bell. 



Subfamily LIBININJE. 

 Genus LIBIDOCLEA, Edwards and Lucas. 



The genus Libidoclea was instituted by Milne Edwards and Lucas, 

 in D'Orbigny's South America, Crustaces, p. G. It has the general form, 

 short beak and long legs of Doclea, but the inner angle of the orbit is 

 prominent as in Libinia, which genus is similar also in form, though 

 with much shorter legs. In the species described by Milne Edwards, 

 the anterior margin of the third joint of the exterior maxillipeds is 

 strongly notched, and this he lays clown as a generic character. It 

 fails, however, in our species, and cannot, therefore, be of this impor- 

 tance. The basal immoveable joint of the outer antennae has a Btrong 

 tooth on the outer side in both his species and ours; and in other 

 characters of generic importance, the two appear to agree. 



Libidoclea coccixea. 



Coccinea. Carapax orbieidato-triangtdafm, sparslm tuh rexdatospinoms 

 etftxmh subtiliter granulosus, rostro sat brevi. JFkdes md>tUwim& gra- 

 nulosi, tenues, digito pans lnii subulate et basin non tumido, arth <<!,, 

 parts 2di Mo valde breviore quam carapax, tarsexjue para breviort 

 quam artkidus quinfus, articido ito pedum 8 postimrum &iipra com* 

 planato et laid. Artlculus maxillipedk extend Stius antia ink get. 



Scarlet, Carapax round triangular, sparsely tuberculato-spinous, and 

 minutely sparse-granulous, beak shorter than in the L. granaria, 

 feet finely granulous, slender; finger of first pair subulate, not tumid 



