1966. A study of the crustacean axon repeti- 

 tive response. III. A comparison of the effect 

 of veratrine sulfate solution and potasium-rich 

 solutions. Journal of Cellular Physiology, vol. 

 67, No. l,p. 181-196. 



Single motor nerve fibers, closer, opener, 

 and bender fibers, were dissected from the 

 walking leg of C. sapidus. The single nerve 

 fiber gives rise to trains of impulses during 

 a prolonged depolarizing stimulus, and the 

 alkaloid veratrine itself causes a prolonged 

 depolarization. The effect of this chemi- 

 cally produced depolarization on repetitive 

 firing was compared with the effect of 

 depolarization by an applied stimulating 

 current or by a potassium-rich solution. 



Wurtz, Charles B., and Selwyn S. Roback. 



1955. The invertebrate fauna of some Gulf 

 Coast rivers. Proceedings of the Academy of 

 Natural Sciences of Philadelphia, vol. 107, p. 

 167-206. 



Report on collections made during five 

 surveys on the Escambia River (Pensacola, 

 Fla.), Sabine River (Orange, Tex.), and 

 Neches River (Beaumont, Tex.), and on the 

 prevailing chemical conditions. Blue crabs 

 were collected at many stations in all rivers. 

 Many dead blue crabs occurred during a 

 low-water survey in the Neches River 

 (dissolved oxygen, 0-1.1 p. p.m.). 



Yeager, J. Franklin, and Oscar E. Tauber. 



1935. On the hemolymph cell counts of some 

 marine invertebrates. Biological Bulletin 

 (Woods Hole), vol. 69, No. 1, p. 66-70. 



Values for the total hemolymph cell counts 

 and for the mitotic indices of blue crabs 

 and 25 other species. 



Young, Joseph H. 



1956. Anatomy of the eyestalk of the white 

 shrimp, Penaeus setiferus (Linn. 1758). 

 Tulane Studies in Zoology, vol. 3, No. 10, p. 

 169-190. 



The anatomy of the eyestalk of C. sapidus 

 is often referred to for comparisons. 

 1959. Morphology of the white shrimp 

 Penaeus setiferus (Linnaeus 1758). U.S. Fish 



and Wildlife Service, Fishery Bulletin, vol. 59, 



No. 145, 168 p. 



The muscle, nervous, circulatory, excre- 

 tory, reproductive, and respiratory systems 

 of the white shrimp are compared with 

 those of the blue crab and various other 

 decapod crustaceans. 



Young, Robert H. 



1955. How to set up a soft shell crab plant in 

 Florida. University of Miami Marine Labora- 

 tory, Special Service Bulletin No. 11, 5 p. 

 Deals with the identification and separation 

 of various crab stages in the molt cycle, 

 setting up and fishing the shedding floats, 

 capture of pre-peelers, and shipping soft- 

 shell crabs. 

 1957. Florida crab plant design and sanita- 

 tion. University of Miami Marine Laboratory, 

 Educational Series No. 10, 20 p. 



A crab plant design is presented embodying 

 desirable features for efficient and sanitary 

 production of crab meat. 



Zilberberg, Mark H. 



1966. Seasonal occurrence of fishes in a 

 coastal marsh of northwest Florida. Publica- 

 tions of the University of Texas, Institute of 

 Marine Science, vol. 11, p. 126-134. 



A study of the biota of a Florida marsh. 

 Salinity, water temperature, and the abun- 

 dance of blue crabs and four main species 

 of fish are presented by month. The popu- 

 lation level of the blue crab remained 

 relatively constant throughout the year. 

 This species was more abundant in creeks 

 than in ponds and canals. 



Zinn, Donald J. 



1969. Callinectes sapidus, favorite target of 

 Homo sapiens. University of Rhode Island, 

 Maritimes, vol. 43, No. 1, p. 12-14. 



Description, range, life history, molting, 

 food, and predators. In Rhode Island, 

 contamination of the environment of the 

 blue crab has greatly reduced its once large, 

 commercially valuable harvest. 



78 



