and that implantation of the medulla termi- 

 nalis containing the X-organ, prevented or 

 delayed induced molting. 

 1961. The regulation of crustacean meta- 

 morphosis. American Zoologist, vol. 1, No. 1, 

 p. 89-95. 



The author refers to the hormone of the 

 Y-organ that controls molting in the blue 

 crab. The change in abdominal shape when 

 sexual maturity is reached at the final molt 

 of the female does not occur in a forced 

 ecdysis following artificial Y-organ activa- 

 tion. The Y-organ remains in the mature 

 female, although she never molts again. 



Paulmier, Frederick C. 



1903. The edible crab, a preliminary study of 

 its life history and economic relationships. 

 New York State Museum, 55th Annual 

 Report of the Regents, 1901, p. 129-138. 



Distribution, abundance, life history, 

 growth of larvae and juveniles, longevity, 

 fishery in New York, industry for soft and 

 hard crabs, and danger of catching egg 

 bearing females to the supply of blue crabs 

 are dealt with. 



1904. Crab fisheries of Long Island. New 

 York State Museum, 56th Annual Report, 

 1902, p. 131-134. 



The report deals with abundance of crabs 

 in New York in 1902, gear used by the 

 fishery, methods of shedding crabs, and 

 shipping soft shell crabs. 



Payen, Genevieve, John D. Costlow, Jr., and 

 Helene Charniaux-Cotton. 



1967. Recherches sur le role de la neuro- 

 secretion dans la differenciation sexuelle du 

 Crabe Callinectes sapidus Rathbun. Comptes 

 Rendus de l'Academie des Sciences Paris, t. 

 264, Serie D, p. 2148-2151. 



If both eyestalks are removed the first day 

 of the megalops stage, the megalops meta- 

 morphose into both male and female. The 

 removal of the neurosecretory complex of 

 the eyestalks before sexual differentiation 

 does not hinder the development of the 

 androgen gland; the principal determinator 

 of sex is the presence or absence of this 

 gland. 



Pearse, A. S. 



1929. The ecology of certain estuarine crabs 

 at Beaufort, N.C. Journal of the Elisha 

 Mitchell Scientific Society, vol. 44, No. 2, p. 

 230-237. 



Laboratory studies on 10 species of crabs, 

 including the blue crab. Tolerance to 

 diluted sea water, ability to endure desicca- 

 tion in air, and volume of body in relation 

 to volume of gills of crabs from various 

 habitats. 

 1936. Estuarine animals at Beaufort, North 

 Carolina. Journal of the Elisha Mitchell 

 Scientific Society, vol. 52, No. 2, p. 174-222. 

 The occurrence of blue crabs and other 

 estuarine animals at 22 stations near Beau- 

 fort (dates and salinities given). In labora- 

 tory experiments to determine the length 

 of time that various animals could live 

 when exposed to desiccation in air, blue 

 crabs survived on average of 34.4 hours 

 (maximum 97.3 hours). 

 1947a. On the occurrence of ectoconsortes on 

 marine animals at Beaufort, N.C. Journal of 

 Parasitology, vol. 33, No. 6, p. 453-458. 



The species and numbers of consortes 

 (commensal, symbiont, or parasite) found 

 on 93 blue crabs. 

 1947b. Observations on the occurrence of 

 certain barnacles and isopods at Beaufort, 

 N.C. Journal of the Washington Academy of 

 Sciences, vol. 37, No. 9, p. 325-328. 



Occurrences of barnacles, Octolasmis 



mulleri in blue crab gills and Chelonibia 



patula on the blue crab carapace, legs, and 



abdomen. 



1949. Observations on flatworms and nemer- 



teans collected at Beaufort, N.C. Proceedings 



of the U.S. National Museum, vol. 100, No. 



3255, p. 25-38. 



Nineteen blue crabs contained an average 

 of 83 nemerteans, Carcinonemertes carcin- 

 ophila. These were primarily in the gills, 

 but some were among the abdominal 

 appendages. 



Pearse, A. S., H. J. Humm, and G. W. Wharton. 

 1942. Ecology of sand beaches at Beaufort, 

 North Carolina. Ecological Monographs, vol. 

 12, No. 4, p. 135-190. 



Number of blue crabs in collections from 

 seven stations obtained by various 



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