M A I I D E A. 



131 



fourth joint it gradually narrows, and at apex it is rounded; above the 

 fourth joint it is wider, and the margin either side is rounded. 



PELTINIA NODULOSA. 



Carapax suboctagonus, parce oblongus, Icevis, angulis duobus lateralibw 

 utrinque proditetis, obtusis, rostri cornubus triangulate sejunctis, tria'n- 

 gulatis, subacutix ; dente prceorbitali subaeuto, postrorbitali obsolete, 

 margine postico in&rmi. Pedes nudi, mediocres, articulis toils, manu 

 tarsoque exceptis, phis mimtsve nodulosis, tarsis infra minute spinu- 

 losis. Antennae externce apicem rostri parce superantes. 



Suboctagonal, sparingly oblong, smooth, somewhat uneven, on either 

 side two prominent angles which are obtuse; horns of beak trian- 

 gular, and separated by a triangular interval, lamellar, subacute; 

 prasorbital tooth subacute, post-orbital obsolete. Posterior margin 

 unarmed. Feet naked, of moderate length, second pair longest, all 

 joints of legs, excepting the hand and the tarsi, nodulose, tarsi 

 below spinulous. Outer antennae extending slightly beyond apex 

 of beak. 



Plate 5, fig. 8 a, animal, enlarged ; b, under view of head. 

 Coral reef of Vanua Lebu, Feejee Islands. 



Length, one-fourth of an inch. Breadth between the eyes, about 

 half the greatest breadth. The surface is finely granulated, and 

 without tubercles or spines. The horns are short pubescent on 

 inner side. The extremity of the eye alone, is visible in an upper 

 view. The second and third basal joints of the outer antennae are but 

 little longer together than the first basal, and the apex of the third 

 reaches only to base of beak; flagellum extends slightly beyond 

 apex of beak. Buccal area nearly square. Last three pairs of legs 

 subequal. Hand slender, oblong, curved a little at apex; fingers 

 slender, in contact throughout their length. 



