88 



5. Cancer Pagurus, Auct. Canc. testd granulatd ; margine an- 

 tico-laterali decem-lobato, lobis ąuadratis, contiguis, integris ; 

 manibus lavibus. 



Hab. ad oras Magnae BritanniBe et Europse Occidentalis. 



In illustration of Mr. Bell's paper the several Crabs described in 

 it were exlubited, and it was stated that drawings of them would be 

 prepared. 



Mr. Bell subseąuently read a paper " On Microrhynchus, a new 

 Genus of Triangular Crabs." Its characters are thus given : 



Microrhynchus. 

 Testą subtriangularis, postice rotundata, anticė rostro brevissimo 



terminata. 

 Oculi pedunculo elongato muito crassiores, retractiles. 

 Orbita suprž, unifissa, extrorsūm unidentata. 

 Antennm exteriores ad latera rostri insertze, articulo basilari rostro 



vix breviore. 

 AntentKB interiores in fossulS. integra anticė aperta et ad apicem 



rostri ferė attinente locatae. 

 Pedipalpi externi caulis intemi articulo secundo cordifonni, anticė 



profundė emarginato. 

 Pedes antici maris corpore vix longiores, reliąuis muito crassiores, 



digitis arcuatis ; fceminse minimi : pedes octo posteriores subcon- 



similes, corpore fere duplo longiores, unguibus leviter cur\is. 

 Abdomen maris 7- foeminae 5-articulatum (hujus articulis tribus 



ultimis conjunctis). 

 Genus Camposcicz affine, et verosimiliter Camposciam inter et Ina- 

 chum collocandum. 



1. Microrhynchus GiBBosus. Micr. testd gibbosd ; rostro bifido. 

 Long. testae 6 ; lat. 5 lin. 



Hab. ad Insulas Gallapagos dietas. 

 Flavescenti-albidus . 



2. Microrhynchus depeessus. Micr. testd depressd, granulatd ; 

 rostro minuto, triangulari, integro. 



Long. testae 6 ; lat. itidem 6 lin. 



Hab. cum prsecedente. 



Albidus carneo obsoletissimė tinctus. 



The reading of tbe paper was illustrated by tbe exhibition of the 

 specimens on which it is founded, and which form part of the šame 

 collection \vith the Crabs before referred to. Mr. Bell stated that 

 he regarded it as part of a Descriptive Catalogue of the Crustacea of 

 the westem coast of South America, on Avhich he is no\v engaged, 

 and the materials for which will be chiefly furnished by the collec- 

 tion presented to the Society by Mr. Cuming. 



