218 PROCEEDINGS OF THE AMERICAN ACADEMY 



corporis breviores, teretes, articulis oblongis; 2dae fere duplo longiores, 

 flagollo fcrme 21-articulato, fere duplo longiore quam basis. Pedes 

 7mi corporis longitudine, extremilate styliformi, minute pubescente : 

 4 antici inaequi, manubus ovatis, manu Ima parvula, 2da validiuscula, 

 palma paulo excavata, digito sat longo. Pedes 3tii 4ti tenues, par- 

 vuli ; sequentes articulum primum angusti. 



Long. 2'". — Hah. in sinu " Bay of Islands " Novi-Zealandiaj. 



Genus IV. ERICHTHONIUS? {M.Edwards.) 



AntenncB elongatae. Pedes primi plus minusve cheliformes, secundi 

 valde cheliformes, digito biarticulato, pollice prominente. Epiviera 

 sat angusla aut latiuscula. Cauda subsaltatoria. 



Erichthonii grcssorii (cauda non saltatoria), M. Edwardsio auctoritate, 

 et epimera carentes. Forsan genus hie descriptum Erichthonio 

 discrepat et novum. Hoc credente, genus Pyctilus (a ttv/ct???, 

 pugil) in manuscriptis auctore institutum est. 



1. Erichthonius (Pyctilus.') macrgdactylus. — Corpus gracilis, 

 epimeris mediocribus, capite oblongo, margine frontis ophthalmico 

 producto. Antennae elongatae ; 2d3e corpore breviores, articulis 3tio 

 4toque subsequis, longis, flagello paulo breviore quam basis, ferme 

 10-articulato, setis perbrevibus. Manus Ima elliptica, 2-articulata, 

 (articulo prime majore) digito brevi. Manus 2da validissima, paulo 

 <^ forma, pollice proelongo, acuto, digito longiore quam manus, articulis 

 duobus subaequis, utroque pollicis longitudinem asquante, apicem acuto, 

 sparsim breviter hirsute. Pedes 3tii 4ti subjequi ; 5ti breves, articulo 

 prime postice acute producto ; 6ti 7mi paulo inasqui, postici longiores. 



Hah. in mari Indiae Orientalis. 



2. Erichthonius (Pyctilus.^) pugnax. — Antennarum basis Ima- 

 rum flagello vix longior. Manus secunda validissima oblonga, mar- 

 ginibus antico posticoque fere parallelis, pollice brevi, bifurcate ; digito 

 elongate, articulis duobus inasquis prime crassiore et longiore, intus 

 parce eroso et sparsim hirsutiusculo, duplo longiore quam poUex. 



Hah. in mari Indiae Orientalis, 



Familia III. COROPHID^. 



Corpus plus minusve depressum, lineare, abdomine recto, articulos 

 normali, epimeris angustissimis vel obsoletis. Mandibular palpigerte. 

 Anlenna pediformes. Animalia gressoria. 



