CRUSTACEA. 



The regions of the carapax are well pronounced. The medial 

 region is large and oblong, and embraces several small tubercles which 

 are sometimes nearly obsolete. The tubercles are often as follows, begin- 

 ning anteriorly : two, distant from one another, in a line between the 

 eyes; then, one medial; then four, two either side of the medial line 

 more or less distant from it; then, on the medial line, two; next, two 

 in a transverse line; next, two minute in a transverse line, just on 

 the posterior limits of the medial region. The post-medial region is 

 small and has one transverse tubercle, with sometimes others subsi- 

 diary ; the cardiac region has three tubercles forming a single promi- 

 nence, sometimes with two others smaller anteriorly, and others 

 smaller posteriorly ; the intestinal region is low without tubercles, or 

 has three tubercles clustered, smaller than those of the cardiac region. 

 The lateral regions are rounded and tumid, and embossed with 

 small tubercles ; a part either side of the post-medial region forms a 

 separate prominence, consisting of a few clustered tubercles. 



The two anterior pairs of legs are nearly of the same length, and 

 the finger and thumb of the hand may be in contact throughout or 

 only at their tips. 



The abdomen of both sexes is seven-jointed. 



The tarsus has minute corneous points on the inner surface, and 

 longer hairs. 



TIARINIA CORNIGERA ? (M. Edwards.} Dana. 



Maris : Crassiuscula, supra tuberculata pustulata et granulata, pome 

 oculos paulo constricta, regione gastricd prominente, latitudinc maximd 

 longitudinem post-orbitalem cequante, latitudine trans-orbitali dimidio 

 minore quam latitudo maxima; rostro multo breviore quam latitudo 

 transorbitalis, cornubus omnino contiguis. Antennce external rostro 

 multo longiores, articulo primo subquadrato angulo externo promi- 

 nente, subacuto, articulis duo sequentibus longe eiliatis, 2do parce 

 longiore quam tertius, subspatulato. Pedes secundi sequentibus duplo 

 longiores. Pedis antici manus tumidula, oblotiga, levis, digitis latis- 

 sime hiantibus, articulo tertio tuberculato. Pedes octo postici subti- 

 lissime* hirsuti, articulo tertio parce tuberculato. 



Male: Rather stout, above tuberculate, pustulate and granulate, 



