1852.] 7 



scabri-rugato et breviter hirsute, tarso curvato, canaliculate. Hah. Valparaiso? 

 Long. 2". 



Bernhardus .equimanus. Carapax sparsim pilosus, regione antica non ob- 

 longa, fronte ad medium angulato, vix rostrato. Oculi cylindrici, aciculum an- 

 teniialem longitudine aequantes, squama, basaliapice productaet 3 4-denticulata. 

 Antennarum externarum flagellum infra elongate ciliatum. Pedes superficie 

 granulati partim sparsim hirsuti, marginibus hirti ; antici aequi, mediocres, manu 

 breviter elliptica, parce latiore et longiore quam carpus, non costata, marginibus 

 subspinulosis, carpo supra subspinuloso et hirto. Pedum 4 sequentium tarsi 

 bene canaliculati, infra ciliati. Hab. Valparaiso. Lo7ig. U". 



Bernhardus crimticornis. Frons medio parce angulatus. Regio carapacis 

 antica non transversa. Oculi mediocres, aciculo antennali paulo longiores, 

 squama basali apicem rotundata. Flagellum antennarum externarum infra crini- 

 tum non ciliatum. Pedes antici valde inaequi, nudiusculi, manu majore oblonga, 

 paulo longiore et latiore quam carpus, scabricula, spinulis subtilissimis 4 5-se- 

 riatis, margine inferiore fere recto, carpo minute spinuloso. Pedes 2di 3tii laxe 

 pubescentes, non spinulosi, tarso non canaliculato. Hab. portu "Rio Janeiro." 

 Long. 910'''. 



Pagurus Etjopsis. -P. functulato affinis. Oculi fronte carapacis valde longi- 

 ores, crassiusculi. Flagellum antennarum externarum nudum, articulis versus 

 antennae extremitatem latere interno gibbosis ; aciculum parvulum. Pedes antici 

 sat inajqui, manu majore carpoque oblongis, extus spinulosis et hirsutis. Pedes 

 2di 3tii marginibus multo hirsuti, articulo 5to spinulis supra paulo armati, tarsis 

 totis subteretibus, undique divaricate hirsutis. Hab. ad insulam *'Upolu" et in 

 freto "Balabac.'' Long. 2k". 



Clibanarius striolatus. Regio carapacis antica fere quadrata. Oculi 

 graciles, margine carapacis antico vix breviores, squama basali angusta, acu- 

 minata, bidentata. Pedes antici subaequi, manubus brevibus carpisque supra 

 spini-tuberculatis et pilosis, manu sinistra maris paulo majore. Pedes 2di 3tii 

 supra infraque paulo hirsuti, multis lineis brunneis longitudinalibus ornati, tarso 

 subterete, non breviore quam articulus penultimus, sinistro 3tii paris articulo 

 5to extus parce convexo, acie rectangulata superne instructo. Hab. insula 

 " Tongatabu," et archipelago " Viti." Long. 2'". Pagtcro lineato, Edvv. pro- 

 pinquus. 



CiiiBANARius BBASiLiENsis. Regio carapacis antica paulo oblonga. Rostrum 

 bene triangulatum. Oculi gracillimi, margine carapacis antico non breviores, 

 squama basali valde truncata et brevissima, pilis longis, margine apicali transverso 

 instructa. Pedes antici aequi, manu dextra parce majore. Pedes 2di 3tiique 

 persparsim hirsuti, subnudi, tarso perbrevi, articulo 5to paris 3tii extus sub- 

 complanato, parce convexo, supra subcarinato. Pedes colore pauci-lineati. 

 Hab, portu "Rio Janeiro.'' Long. \\" . 



Clibanarius globosi-raanus (Pag. globosi-manus, D.) P. corallino, Edw. adhuc 

 partim descripto an difFert? In specimine globosi-mani non attrita, pedes 

 2di 3tii marginibus hirsuti non nudiusculi. Clibanariis aliis totis nobis lectis 

 differt, supeficie externa articuli 5ti sinistri paris 3tii omnino hirsuta. 



II. Megalopidea. 



The question of the maturity or immaturity of the Megalopae and that of their 

 true place in the natural system, still remain in doubt. Without touching on 

 these points, at this time, I propose to describe some new genera and species 

 pertaining to the group. 



The species, however diverse, agree in the structure of the abdomen and its 

 caudal appendages ; in the position of the four antennae beHvee/i the eyes ; in the 

 articulations of the outer antennas j in the inner antennas folded longitudinally or 

 obliquely either side of the beak ; in the general form of the outer maxillipeds ; 

 in the large size and lateral position of the eyes without orbits; in the general 

 structure of the legs ; and in their habits. The beak is either horizontal or 



