Family GERYONIDAE 



Geryon quinquidens Smith, 1879. Deep sea 

 red crab. Off Nova Scotia to Cabo Frio, 

 Brazil. 40-2,160 m (Rathbun, 1937). 

 Family PINNOTHERIDAE 



Dissodactylus mellitae (Rathbun, 1900). 

 Vineyard Sound, Mass., to Charleston, 

 S.C.; west Florida. Commensal with 

 sand dollars. Shallow water to 20 m (Wil- 

 liams, 1965). 



Pinnixa chaetopterana Stimpson, 1860. 

 Wellfleet, Mass., to South Carolina; 

 Punta Rassa, Fla., to Galveston, Tex.; . 

 Rio de Janeiro, and Villa Bella, Sao 

 Sebastiao, Brazil. Commensal with 

 Chaetopterus variopedatus, Amphitrite 

 ornata, and Ccdlianassa species. Inter- 

 tidal to 15 m (Williams, 1965). 



Pinnixa cylindrica (Say, 1818). North Fal- 

 mouth, Mass., to Alligator Harbor, Fla. 

 Commensal withArenicola cristata, and 

 probably other large annelids. Shallow 

 water to 35 m (Williams, 1965). 



Pinnixa sayana Stimpson, 1860. Vineyard 

 Sound, Mass., to Beaufort, N.C.; 

 Sarasota Bay, Fla., to Grand Isle. La. 

 Reported as commensal with A renicola 

 cristata, but also free in water. Shore to 

 50 m (Williams, 1965). 



Pinnotheres maculatus Say, 1818. Mussel 

 crab. Off Martha's Vineyard, Mass., to 

 Mar del Plata, Argentina. Parasitic in 

 bivalve moWusks, Argopecten irradians, 

 A. gibbus, Atrina serratus. Modiolus 

 modiolus , M. americanus , My a 

 arenaria, Mytilus edulis, and with 

 Chaetopterus variopedatus, Molgula 

 robusta, Bostrichobranchus pilularis, 

 and on Asterias vulgaris, as well as free- 

 swimming stages. Surface to 45 m (Wil- 

 liams. 1965). 



Pinnotheres ostreum Say, 1817. Oyster 

 crab. Salem, Mass., to Estado de Santa 

 Catarina, Brazil. Parasitic in bivalve 

 mollusks, Argopecten species, Anomia 

 simplex, Crassostrea virginica, Mytilus 

 edulis, and with Chaetopterus var- 

 iopedatus as well as free-swimming 

 stages in estuaries. Depth limits not re- 

 corded (Williams, 1965). 

 Family GRAPS1DAE 



Planes minutus (Linnaeus, 1758). Gulf 



weed crab, turtle crab, Columbus crab. 

 Atlantic Ocean south of Newfoundland, 

 west of lat 50°W, and exclusive of Gulf 

 of Mexico; occasionally on coast of 

 Netherlands, southwest England, Por- 

 tugal, and Mediterranean Sea. Common 

 in Sargassum (Chace, 1951; Christian- 

 sen, 1969). 



Sesarma reticulatum (Say, 1817). Woods 

 Hole, Mass., to Calhoun County, Tex. 

 Burrows in muddy salt marshes (Wil- 

 liams, 1965). 

 Family OCYPODIDAE 



Ocypode quadrata (Fabricius, 1787). 

 Ghost crab. Woods Hole, Mass.. to Es- 

 tado de Santa Catarina, Brazil. Semiter- 

 restrial; burrows along ocean beaches 

 and occasionally on harborbeaches (Wil- 

 liams, 1965; Chace and Hobbs, 1969). 



Uca minax (Le Conte, 1855). Red jointed 

 fiddler. Buzzards Bay (Wareham) 

 Mass., to Matagorda Bay, Tex.; Colom- 

 bia; Dominican Republic. Usually on 

 muddy or muddy sand substrates of low 

 salinity marshes; a burrower (Williams, 

 1965). 



Uca pugilator (Bosc, 1801 or 1802). Sand 

 fiddler. Boston Harbor, Mass., to Cor- 

 pus Christi, Tex. Sandy and muddy 

 beaches bordering marshes and tidal 

 creeks; a burrower (Williams, 1965). 



Uca pugnax (Smith, 1870). Mud fiddler. 

 Cape Cod, Mass., to near Daytona 

 Beach, Fla. Primarily on intertidal mud 

 flats among Spartina; a burrower (Wil- 

 liams, 1965; Salmon and Atsaides, 1968). 



SELECTED BIBLIOGRAPHY 



ABELE, L. G. 



1972. A reevaluation of the Neopanope 

 texana-sayi complex with notes on N . pack- 

 ardii (Crustacea: Decapoda: Xanthidae) in 

 the northwestern Atlantic. Chesapeake Sci. 

 13:263-271. 

 ALLEN, J. A. 



1963. Observations on the biology of Pan- 

 dalus montagui [Crustacea: Decapoda]. J. 

 Mar. Biol. Assoc. U.K. 43:665-682. 



1966. The dynamics and interrelationships of 

 mixed populations of Caridea found off the 

 north-east coast of England. //; Harold 



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