GENUS LIBINIA. Ti 



side, near the base, emarginate for the reception of the pro- 

 longation of the first joint: anterior feet not much thicker 

 than the others, which are similar to each other, and not 

 very long. 



SPECIES. 



1. Z. canaliculata. Thorax densely hairy, with about 

 seven lateral spines, and a few usually shorter ones on the 

 back; Rostrum emarginate at tip, canaliculate between the 

 eyes; anterior feet unarmed, granulated, hands elongated; 

 fingers white at tip. 



Inhabits bays and inlets of the coast. 



Plate A>,fig. 1. 



Rostrum beneath glabrous and white, a deep notcU 

 at tip; Orbits orbicular, with a spine before, and three 

 smaller ones beneath, a fissure above near the poste- 

 rior canthus, and one opposite beneath; Labrum deeply 

 impressed in the middle; anterior angles of the mouth 

 prominent, forming an irregular tubercle, behind this tu- 

 bercle, and the posterior spine beneath the eyes, is a pro- 

 found puncture like an aperture, from which arises a deep 

 groove, that curves before the anterior lateral spines and 

 joins an impressed, abbreviated, transverse line which is on 

 the middle of the thorax, the above line is confluent before 

 its termination in the transverse line with a less deeply im- 

 pressed one which meets the fissure, then curves over the 

 orbit of the eye, and terminates at the base of the rostrum; 

 two of the anterior lateral spines of the thorax are placed 

 lower than the others, appearing to be interrupted con- 

 tinuations of the margin or edge of the thorax; a series 

 of four or five tubercles placed longit dinally on the 

 back behind the impressed line of the middle, and two 



