382 CRUSTACEA. 



A very little short pubescence on some of the joints of the legs; fingers 

 very short pubescent, and hand very slightly so, more so on inner 

 surface. Front faint pubescent. 



P.faba, DANA, Proc. Acad. Nat. Sci. Philad., 1851, v. 253. 



GENUS FABIA. 



Pinnotherae affinis. Orbita margins superiors fissa; carapax pone 

 orbitas suturd longitudinali instructus aream medianam includens. 



Near Pinnothera. Carapax with a longitudinal suture behind the 

 orbits enclosing between them the median area. 



The slender subequal legs and general form are the same as in 

 Pinnothera. The area included by the post-orbital suture on the back 

 of the carapax, corresponds properly to the normal median region, 

 together with the frontal, which is not separated. The suture like 

 the depression limiting the median region begins in the margin of 

 either orbit, and extends back to the middle of the carapax, in which 

 part the two from either side meet. Unlike the depression in other 

 Crustacea, the suture has sometimes a depth and distinctness, which 

 seems almost like a division of the carapax. The upper margin of 

 the orbit in the Pinnothere is entire ; while in the Fabia it is cut 

 through by the termination of this suture. In this suture we see a 

 transition step towards the deep incisions of the front, from which the 

 eyes proceed in Xenophthalmus of White. 



FABIA STTBQUADRATA. 



Carapax (feininas) subquadratus, antice rotundatus, parce latior quam 

 longus, nudus, nitidm. Maxillipedes externi nudi, valde olliqui. 

 Oculi minimi. Suturce postfrontales fere parallels. Pedes antici 

 feminae sat tenues, manu elongatd, infra 2 lineis pubescentibus (lined 

 und usque ad digiti extremitatem productd) ornatd. Pedes 8 postici 

 sat graciles, articulo Stio supra partim pubescente, 5to infra pubescente, 

 tarso brevi, dimidii articuli 5<i longitudine, uncinato. 



