6G2 ME. E. J. MIEKS ON THE 



Pauamicippa, 3I.-Edivards. Eostrum less vertically deflexed. 

 Anterior legs in the male with the palm enlarged, shorter, smooth ; 

 fingers, when closed, meeting only at the ends. Type Parami- 

 cifpa i^latvpes (Eiippell). 



The eyes are, I believe, retractile in both genera ; and the cha- 

 racters derived from the orbital and antennal region are subject to 

 variation. 



Family III. PERICERIDiE. {Mdiens eryptopTithalmes, M,-Edwards, 



part. ) 



Eyes retractile within the small circular and well-defined orbits, which 

 are never incomplete as in the Maiidae. Basal antennal joint well 

 developed, and constituting the greater portion of the inferior wall of 

 the orbit ; this joint is usually very considerably enlarged. 



Subfamily 1. Peeicerin^. (See Plate XIII. figs. 4, 5.) (Pericerince, 



Stimpson.) 



Carapace more or less subtriangular in shape. Rostrum well deve- 

 loped. Second joint of antennae not dilated. Anterior legs with the 

 fingers acute at the tips. 



In this subfamily are included those which may be regarded as 

 the typical genera of this family, in which the spines of the ros- 

 trum are well developed, and often in contact with one another. 

 The interorbital space is very broad, and the orbits tubular ; the 

 basal joint of the antennae very much enlarged, the epistoma 

 short, the legs of moderate length, and the fingers acute at 

 tips. One or two of the genera {Scyra, Sjphenocarcinus), in which 

 the basal antennal joint is least developed, are related to the 

 Epialtinge. 



§ SfOstrum emarginate at a^ex only. 



LiBiNiA, Leacli. Carapace orbiculate-triangular, convex, spi- 

 nose. Prseocular spine distinct. Basal joint of antennae mode- 

 rately enlarged. Legs of moderate length. Type Libinia einar- 

 ginata, Leach. 



VuiO'SOTi'B.Y'SCWJBjJacg^iiinot Sf Lucas. Carapace subtriangular. 

 Prseocular spine absent. Eostrum broad, lamellate, deflexed and 

 emarginate at its distal end. Basal joint of antennae greatly en- 

 larged. Type Frionorliynchus jEdwardsii, Jacq. & Lucas. 



