ANOMOURA PAGURIDEA. 449 



tennae rather long pilose below. Anterior feet very unequal, 

 nearly naked ; larger hand oblong, a little longer and broader than 

 carpus, finely scabrous, the very minute spinules in four or five 

 series, lower margin of hand nearly straight ; carpus minutely spi- 

 nulous. Feet of second and third pairs lax pubescent, not spinu- 

 lous, tarsus not channeled. 



Plate 27, fig. 8 a, part of animal, enlarged four diameters; b, basal 

 scale of eyes ; c, right hand, enlarged four diameters ; d, left, ibid. ; e, 

 third pair, left, ibid. 



Rio Janeiro; the specimens inhabit the Nassa vibex (Say), or a 

 closely related species. 



Length of body, nine to ten lines. Pubescence of second and third 

 pairs of legs rather long, but very fine and sparse, and not at all con- 

 cealing the surface of the legs, mostly confined to upper surface. The 

 hairs of the flagellum of the outer antennae are very fine, and as long 

 as six or eight of the joints together. Base of outer antennae not 

 longer than eyes, cornea with posterior margin above nearly straight. 

 Smaller hand and carpus linear, having some pubescence, carpus with 

 two rows of spinules. 



Genus PAGURUS (Fabr.), Dana. 



Pedes antici raro subcequi, sinistro scepius majore. Digiti in piano 

 verticali claudentes, apiee cornei, instar cochlearis excavati. Frons 

 non rostratus. 



Anterior feet rarely subequal, the left usually the larger; fingers 

 moving in a vertical plane, corneous at tips, spoon-excavate. Front 

 not rostrate. 



Pagurus difformis. 



Feejee Islands ; also Straits of Balabac. 



Larger specimen, two and a half inches long ; larger hand, thirteen 

 lines long and eight and a half wide. The penult joint of the third 



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