num undatum Linne which were occupied 

 either by Pagurus bernhardus acadianus 

 (Benedict) or by Pagiirus pollicaris (Say).i 



' PaRurids identified by Anthony J. Provenzano, Jr., University 

 of Miami, Miami, Fla. 



LITERATURE CITED 



Deevey, Edward S., Jr. 



1950. Hydroids from Louisiana and Texas, with 

 remarks on the Pleistocene biogeography of the 

 western Gulf of Mexico. Ecology 31: 334-367. 



Eraser, C. McLean. 



1944. Hydroids of the Atlantic Coast of North 



America. Univ. Toronto Press, Toronto, 451 pp. 



1946. Distribution and relationship in American 



hydroids. Univ. Toronto Press, Toronto, 464 pp. 



Merrill, Arthur S. 



1962. Abundance and distribution of sea scallops 

 off the middle Atlantic coast. Proc. Nat. Shell- 

 fish. Ass. 1960, 51: 74-80. 



1964. Observations on adverse relations between 

 the hydroid, Hydractinia echinata, and certain 

 mollusks. Amer. Malacol. Un. Annu. Rep. 1964, 

 31: 2. 



1967. Shell deformity of mollusks attributable 

 to the hydroid, Hydractinia echinata. U.S. Fish 

 Wildl. Serv., Fish. Bull. 66: 273-279. 

 Merrill, Arthur S., and J. A. Posgay. 



1964. Estimating the natural mortality rate of 

 the sea scallop {Placopecten inagcllanicus). Int. 

 Comm. N.W. Atl. Fish., Res. Bull. 1: 88-106. 

 Smith, S. L, and 0. Harger. 



1874. Report on the dredging in the region of 

 St. George's Banks, in 1872. Trans. Conn. Acad. 

 3: 1-57. 

 Verrill, a. E. 



1885. Results of the explorations made by the 

 steamer "Albatross," off the northern coast of 

 the United States, in 1883. U.S. Comm. Fish 

 Fish., pt. 11, Rep. Comm. 1883, append. D, art. 

 16: 503-699. 



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