﻿3 



PROCEEDINGS OF THE 



[May, 1254, 



well marked rugous appearance; each transverse ridge on the anterior por- 

 tion subdivided by the depressions marking the regions of the carapax into 

 three portions, a middle and two lateral, nearly continuous ; hairs parallel, 

 nearly equal in length, directed forwards, appressed to the carapax ; front 

 not trifid, middle portion prominent, lateral portions rounded, very slightly 

 prominent ; on each side of the front, just over the eye, there is a spine, form- 

 ing, as it were, the inner angle of the orbit, the outer angle is also formed by 

 a spine, short but very distinct, behind which, at a little distance, on the cara- 

 pax, is another, from which a marked ridge runs backward, forming a border 

 to the shell, but before reaching the posterior edge, turns upward and forms 

 one of the transverse ridges on th e back ; external antenna with a stout spine 

 on the basal joint, filament three or four times the length of carapax. 



Anterior feet subequal,right (frequently the left) somewhat the larger ; third 

 segment inconspicuous, terminated at inner anterior angle with a tooth, rugose 

 like the carapax, upper edge spinous ; carpus nearly as long as the carapax, 

 with five broad subequal teeth on anterior edge, the last forming the an- 

 gle at the articulation with the hand, the tooth on the third segment nearly 

 equal to these, and appearing as the first of a series of six ; outer edge of 

 carpus with five or six small spines ; hand subtriangular, serrate and ciliate 

 on the lower or outer edge, rugose, as also the carpus, with piliferous lines 

 or ridges like those of the carapax, ridges running entirely across the carpus; 

 moveable finger prolonged and hooked at tip, closing under the other, which 

 is also distinctly hooked. 



Color, red, more intense on the piliferous lines or rugae, the hairs grey or 

 ash color. 



Dimensions. — The figure was drawn from the largest specimen in my 

 possession at the time ; I have since seen some larger, 0.53 inch in length, 

 0.55 in breadth. 



Geo. Distr. — Key West, whence it was brought me by Dr. Wurdemann 

 in 1845; also occasionally found on Coast of South- Carolina. 



Remarks. — Some reasons should be given for presenting the synonymy 

 in the manner I have done, and it is requisite to make some statement of the 

 facts on which that view is based. 



As far as I can ascertain, the name Porcellana galalhina was first used by 

 Bose for a new species described by him, in his Histoire Naturelle des Crus- 

 taces, published by Deterville, in 2 vols. 18mo., Paris, an X., as part of the 

 suites a Buffon. A second edition of this work was published in Paris in 

 1830, under the superintendence of Desmarest, and this edition is the only 

 one in my possession, or accessible to me, and from it only can I quote, with- 

 out being able in every case to separate Bosc's original matter from Desma- 

 rest's additions. In this work there is a description at page 298, of " a new 

 species of Porcellana, remarkable for the structure of its carapax, absolutely 

 similar to that of Galathea striata, and which we will consequently call Por- 

 cellana galathina." The description which follows, placed under the general 



