Decapods

Hamata, Wadi El Gemal National Park, Red Sea, Egypt

Nematocarcinus ensiferus Smith. Lateral View of female, from Station 2035.

Crangon vulgaris, the common sand-shrimp; male.

Cymopolia tuberculata, male, after Faxon. a, Dorsal view; b, Ventral view.

Eurypanopeus depressus, the mud-crab; male.

Astacus Klamathensis Stimps. Male. Fort Walla Walla, Washington Territory. Astacus Klamathensis Stikmps. Male. Sikan Creek, Oregon

Eupagurus Pubescens, St..

Corystes Cassivelaunus (Female).

Figure 1.Paramunida haigae sp. n. male holotype, 16.6 mm (LACM–CR1973-3312). Christmas (Kiritimati) Island. A carapace and abdomen, dorsal view B carapace, lateral profile C sternum D left antennule and antenna, ventral view E right maxilliped 3, lateral view. Scale: 5 mm (scale 1 for A–C, E; scale 2 for D).

Figure 2.(CF) Carapace front; (O) orbit; (IOM) mesial lobe of infraorbital margin; (x) widest width of CF; (z) mesial end of suborbital crista; (x–y) width of IOM at point of contact with CF; (y–z) shortest distance between CF and mesial end of suborbital crista; A, B Atlantic Gecarcinus lateralis (Freminville 1835), male, carapace width (CW) 31 mm, Costa Rica, Puerto Viejo C Gecarcinus nobilii sp. n., holotype, male, CW 31 mm, Ecuador, Punta Galera (LACM CR 1968-477). First male gonopod: Gecarcinus nobilii sp. n., holotype: D mesial view E lateral view F Pacific Gecarcinus lateralis (sensu Türkay 1973), CW 31 mm, Costa Rica, Hermosa Beach, lateral view; Scale bar = 5 mm.

Sergestes robustus, spined variety, station 4041 (1). Seyllarus martensi, female, station 3872 (2)

Common Shrimp (Crangon vulgaris).

Pagurus pictus.

Mud Crab, Panopeus depressus, Smith; male.

Astacus klamathensis Stimpson. Male. Portland, Or. Shjowing the abnormal, atavistic form of the regenerated claw of the left side.

Dissodactylus stebbingi.

Corystes Cassivelaunus (Male).

Figure 2.Paramunida haigae sp. n. male holotype, 16.6 mm (LACM–CR1973-3312). Christmas (Kiritimati) Island. A left merus P1, dorsal view B left carpus P1, dorsal view C left P1, palm and fingers, dorsal view D right P3, lateral view E right P3 dactylus F male paratype, 11.5 mm (LACM–CR1973-3313), right P2, lateral view. G left P4, lateral view. Scale: 5 mm (scale 1 for A–C, D, G; scale 2 for F; scale 3 for E).

Figure 3.Gecarcinus nobilii sp. n., holotype, male, carapace width 31 mm, Ecuador, Punta Galera (LACM CR 1968-477), preserved in alcohol (color faded): A dorsal view B frontal view C ventral view. Paratype, female, Ecuador, St. Elena (MNHN, B12314), preserved in alcohol (color faded): D carapace front E frontal view F ventral view.

Hapalopoda investigator, A. Milne Edwards. Crustace voisin des Penees, vivant a 1900 metres de profonduer et ayant ses deux dernieres paires de pattes transformees en organes de tact

Common Shrimp, Crangon vulgaris, Fabr.; male.

Neolithodes Grimaldii Milne-Edwards et Bouvier.

Gelasimus tangeri, Male Above, Female Below. West Africa.

Astacus klamathensis Stimpson. Male. Portland, Or. Both of the chelipeds are secont growths, the left the older.