ANOMOURA INFERIOR A. 429 



inch long, and half an inch wide; carpus, half an inch long, and nearly 

 eight lines wide to top of medial spine on inner margin. The warts 

 of the surface are very unequal ; but none are over a line in breadth ; 

 they have a crenulate border, or a subradiate appearance, as in the 

 enlarged figure. The fingers, as usual in the genus, are excavate and 

 have corneous tips. The abdomen is verrucose on the outer surface 

 throughout like the carapax. 



The granulosa of Hombron and Jacquinot, according to the figure, 

 has the beak projecting scarcely at all beyond the extra-orbital angle ; 

 the carpus is oblong and triangulately dilated within, and the fingers 

 are hardly hairy. They have as yet published no description. 



SECTION IV. ANOMOURA INFERIORA. 



AMONG the Anomoura of this the lower section, we find a transition 

 in the structure of the carapax to the Macroura, which it is of some 

 interest to trace out. We have remarked elsewhere upon the diffe- 

 rences in the sutures of the Brachyura and the Macroura ; that the 

 former have a longitudinal suture on the lower surface of the carapax, 

 between the legs and outer margin, and the latter a transverse dorsal 

 suture, with sometimes (as in the Astaci), traces of longitudinal dorsal 

 sutures posterior to the transverse suture. In this division of the Ano- 

 moura, the transverse dorsal suture of the carapax is strongly marked 

 in the Paguridea and .(Egleidea, though faint or wholly wanting in the 

 Galatheidea. The lateral longitudinal suture of the Brachyura exists 

 in Galathea distinctly; it is less distinct, although apparent, in jEglea, 

 and is wanting wholly in many Paguridea ; while the dorsal longitu- 

 dinal sutures are strongly drawn in both the JEglese and the Paguri- 

 dea. The Galathaeidea, it should be remembered, are in most of their 

 characters more decidedly Macroural than either of the other groups, 

 although wholly like the Brachyura in the sutures of the carapax. 



These points, and others of equal interest, will be more clearly 

 apparent from an examination of figures ; and we refer, for further 



108 



