Callinectes sapidus Rathbun. Biological Bulle- 

 tin (Woods Hole), vol. 98, No. 3, p. 277-288. 

 Loxothylacus texanus infests blue crabs in 

 the Gulf of Mexico, upsetting the normal 

 relationship between sex-formative sub- 

 stances and resulting in the loss of ovarian 

 control over the differentiation of the 

 pleopods. Morphologically, immature male 

 hosts resemble females and immature 

 female hosts resemble mature females. 

 1950b. The morphology of Loxothylacus 

 texanus Boschma, a sacculinid parasite of the 

 blue crab. Texas Journal of Science, vol. 2, 

 No. 3, p. 360-365. 



The external and internal anatomy of L. 

 texanus and how it is attached to the blue 

 crab. In 1948-49, 16.4 percent of the blue 

 crabs in Aransas Bay, Tex., were infested. 



1951. Loxothylacus, a parasite of the blue 

 crab in Texas. Texas Game and Fish, vol. 9, 

 No. 5, p. 14-17. 



Malformation of the abdomen of the blue 

 crab in Texas caused by Loxothylacus 

 texanus. Life history of this parasite. The 

 parasitized crab may recover, but probably 

 will be stunted and not able to carry on 

 normal reproductive processes. 



1952. Notes on regeneration in the Rhizo- 

 cephala (Crustacea). Proceedings of the 

 Helminthological Society of Washington, vol. 

 19, No. 2, p. 105-108. 



No regeneration occurred in Loxothylacus 

 texanus, a parasite of the blue crab, after 

 the visceral sac was amputated. 



Rhoads, Austin Thomas. 



1959. Objective determinations for lump 

 meat and skeletal fragments in cooked crab- 

 meat. M.S. thesis, University of Maryland, 21 



P- 



Evaluated various methods for detecting 



skeletal fragments in blue-crab-meat and 

 established grades of meat based on the 

 number of fragments per pound. The 

 standard recommended for lump meat (the 

 extrinsic muscle of the swimming appen- 

 dage) was that 70 percent of the meat be in 

 pieces larger than 1.8 g. 



Richards, Horace G. 



1938. Animals of the seashore. Bruce Humph- 

 ries, Inc., Boston, 273 p. 



A catalogue of the invertebrate animals of 

 the east coast, particularly New Jersey. The 

 blue crab reportedly occurs all along the 

 New Jersey coast and in bays and harbors. 

 General description of the blue crab and its 

 molting process. 



Richardson, Wyman. 



1953. Blue crabbing on Cape Cod. Atlantic 

 Monthly, vol. 192, No. 1, p. 64-66. 



Popular account of sport fishing for crabs, 

 crab habits, and preparing crabs for the 

 table. 



Ringuelet, Raul A. 



1963. Hallazgo de Callinectes sapidus acu- 

 tidens Rathbun en la Ribera Occidental de 

 Rio de la Plata (Crust. Brach. Portunidae). 

 Physis Revista de la Asociacion Argentina de 

 Ciencias Naturales, vol. 24, No. 67, p. 86. 



The blue crab was found to occur at Punta 



Lara, Argentina. 



Roberts, Morris H., Jr. 



1969. Larval development of Bathynectes 



superba (Costa) reared in the laboratory. 



Biological Bulletin (Woods Hole), vol. 137, 



No. 2, p. 338-351. 



External anatomy of five zoeal stages of 

 Bathynectes superba and how these stages 

 can be distinguished from those of Por- 

 tunus and Callinectes. 



Roberts, Winthrop A. 



1905. The crab industry of Maryland. U.S. 



Bureau of Fisheries, Report for 1904, p. 



415-432. 



Blue crab industry: statistics, use of crab 

 shells, and methods of catching, preparing, 

 canning, packing, and shipping crabs. 

 Effects of severe winter of 1901 on the 

 1902 supply of crabs. 



Robertson, Roy L. 



1938. Observations on the growth stages in 

 the common blue crab, Callinectes sapidus 

 Rathbun with special reference to post-larval 

 development. M.S. thesis, University of Mary- 

 land, 46 p. 



Attempts to hatch the eggs and rear blue 

 crabs through their larval stages were 

 unsuccessful, but crabs were reared from 



60 



