414 CRUSTACEA. 



third joint is somewhat hirsute, and the second and third pairs of legs 

 are similar. 



PORCELLANA SULUENSIS. 



Carapax convexus, ceque latus ac longus, non rugatus, sparsim crinitus, 

 fronte fere recto, leoiter triangulate; latere carapacis pone angulum 

 post-orbitalem sed ante emarginationem antero-lateralem imi-spinoso, 

 posteriore prope medium minutb tri-spinuloso. Pedes paulo hirtelli ; 

 antici mediocres, carpo oblongo, intus 2-3-dentato, dentibus tenuiter 

 spinuliformibus. 



Carapax as long as broad, rather convex, not rugate, sparsely crinite, 

 front nearly straight, faint triangulate, side of carapax behind the 

 post-orbital angle but anterior to the antero-lateral emargination 

 uni-spinose; more posteriorly, near middle, three minute spinules. 

 Feet somewhat hairy, anterior of moderate size, carpus oblong, two 

 or three teeth on inner margin, the teeth like slender spinules. 



Plate 26, fig. 4, animal, enlarged four diameters. 

 Sooloo Sea, from a depth of six and a half fathoms. 



Length and breadth of carapax, l - 4 lines. The specimen is evi- 

 dently young, yet its characters are so far peculiar that we have felt 

 warranted in naming and describing it. The hairs on the carapax 

 are probably, to a great extent, due to its young state. It resembles 

 the grossimana in the low triangular front, and is also near the 

 pisum; but it is distinguished by the oblong carpus, with its two or 

 three spiniform teeth, and the spinules on the lateral margin of the 

 carapax, as well as that just behind the post-orbital angle. It is 

 possible that on reaching maturity, the front becomes more inflexed, 

 so as to present a straight profile in an upper view, as in the pisum, 

 and others allied. 



PORCELLANA GROSSIMANA, Guerin. 

 San Lorenzo, Peru ; also, Valparaiso. 



