Table 19. (Continued)
Species
(m)
FAM. PINNOTHERIDAE (Commensal Pea Crabs)
Dissodactylus crinitichelis
0-80
Dissodactylus encopei
0-50
Dissodactylus primitivus
0-43
Parapinnixa bouvieri
0-75
Parapinnixa hendersoni
0-60
Pinnixa sayana
0-75
Tumidotheres maculatus
0-50
FAM. PALICIDAE (Stilt Crabs)
Palicus affinis
20-215
Palicus alternatus
0-285
Palicus cursor
192-1852
Palicus dentatus
27-481
Palicus depressus
103-463
Palicus gracilipes
109-563
Palicus gracilis
180-504
FAM. GRAPSIDAE (Shore Crabs)
Geograpsus lividus
0-150
FAM. PLAGUSIIDAE (Spray Crabs)
Euchirograpsus americanus
30-509
Euchirograpsus antillensis
192-366
3. Mollusks
A rich collection of more than 650 species of mollusks has been reported from deep
waters around Puerto Rico and the U. S. Virgin Islands (Bartsch, 1934). From the
dredge sampling of the H. M. S. Challenger at station 24 (depth: 706 m), north of St.
Thomas, Watson (1886) identified 153 species of mollusks (Scaphopoda and
Gasteropoda). Mollusks were also reported from the dredge samplings of the “Fish
Hawk” (Dall and Simpson, 1900), and from the Johnson-Smithsonian Expedition to the
Puerto Rican Deep aboard the Yatch “Caroline” in 1933 (Bartsch, 1934; Cooper, 1934;
Corea, 1934). A collection of seven cephalopods (Order Sepioidea) were reported from
Voss (1958) from mid-water trawl samplings by the R/V Atlantis in waters of the north
coast of Puerto Rico. Samplings of the R/V Oregon and R/V Pillbury also contributed to
the taxonomic record of the deep water mollusks from the U. S. Caribbean EEZ. The
Queen Conch (Strombus gigas) was recently reported from a depth of 40 m off the south
coast of St. Thomas by Armstrong et al. (in press).
78