1851.] 253 



antennse externce Imus transversus, apice utrinque productus et subacutus, 

 superficie graniilatus, processu orbitam antennamque sejungente subtriangulato, 

 trihedrico, non truncato. 



Long, carapacis 3"; lat. 3|"; long, frontis inter oculos 12'"; lat. areae buc- 

 calis antice 9'". Hab. archipelagine "Paumotu." 



Cardisoma hirtipes Carapax longitudinaliter convexus, margine lateral! 



antice notatus, prope dentem post-orbitalem minute apiculato, areola pracmodiana 

 antice juxta frontem paulo abrupta, regions pterygostomiana pilosa. Processus 

 prajorbitalis orbitam antennamque externam sejungens triangulatus, trihedricus. 

 Articulus antennse externa; Imus rectangulatus apice recte truneatus. Pedes 

 maris antici crassi, subaequi, sat breves, manu punctata, digitis late hiantibus. 

 Pedes postici hirti. 



Long. ca.ra.^diC\s maris 22i"' ; lat. 28'" ; long, frontis 7i'": lat. areae buccal is 

 antice 51'", postice 81"'. Hab. insulis " Viti." 



FAM. V. PINNOTHERID^. 

 SUBFAM. I. PINNOTHERINiE. 

 GENUS PINNOTHERA, Latreille. 



PiNNOTHERA FAEA Carapax late transversus, nudus, paulo nitidus. Maxilli- 



pedes externi nudi, vix obliqui. Oculi parvuli. Pedes antici femincB breves, 

 manu supra rotundata, digitis subtiliter pubescentibus. Pedes postici perbreves, 

 crassiusculi, articulo 3tio pedis 4ti triplo breviore quam carapacis latitudo, tarso 

 brevi, basi crasso, subconico, apice uncinato. 



Long, carapacis /ew'w<s 5V"; lat. 8"'. Hab. in freto "Puget" Oregonis, 



GENUS FABIA, Dana. 



Fabia subquadrata. Carapax (feminae) subquadratus, antice rotundatus, 

 parce latior quam longior, nudus, nitidus. Maxillipedes externi nudi, valde 

 obliqui. Oculi minimi. Suturae post-frontales fere parallelae. Pedes antici 

 (feminse) sat tenues, manu elongata, infra 2 lineis pubescentibus (lined una usque 

 ad digiti extremitatem producta) ornata. Pedes 8 postici sat graciles, articulo 

 3tio supra partim pubescente, 5to infra pubescente, tarso brevi, dimidii articuli 

 5ti longitudine, uncinato. 



io??^-. carapacis 5''"; lat. 61'"; lat. inter suturas post-frontales 21'". Hab. in 

 freto "Puget" Oregoniae. 



SUBFAM. II. HYMENICIN^. 

 GENUS HALICARCINUS, White. 



Halicarcinus pubescens. Carapax ovato-orbicularis pone medium latior. 

 Pedes longitudine mediocres, 8 postici laxe pubescentes. Abdomen maris 

 angustum, fere lineare, apice triangulatum. 



Long. 11'". Hah. in mari, juxta Patagoniam orientalem, altitudine 50 

 brachiorum. 



GENUS HYMENICUS, Da7ia. 



1. Hymenicus varitjs. Carapax laevis, nudus, planus, ovato-orbiculatus, vix 



transversus, fronte expansus et trilobatus, lobis rotundatis, margine antero-laterali 



dentibus duobus obsoletis remote armato. Abdomen maris angustum, subtrian- 



gulatum, segmento basali latiore et utrinque triangulato, penultimo angustiore 



