attributed by fishermen to a large mortality 

 caused by the severe cold the previous 

 winter. Many isopods, Cirolana concharum, 

 fed on dead crabs on the beach. 



Lemon, J. M., and R. V. Truitt. 



1941. Seafood and the diet. Chesapeake 

 Biological Laboratory, Solomons, Md., Publi- 

 cation No. 42, 11 p. 



The mineral and vitamin content and the 

 protein and fat composition of blue crab 

 meat are given. 



Leone, Charles A. 



1953. Some effects of formalin on the sero- 

 logical activity of crustacean and mammalian 

 sera. Journal of Immunology, vol. 70, No. 4, 

 p. 386-392. 

 The effect of 0.2 to 10 percent formalin on 

 serological activity was studied with 

 antisera produced against the sera of the 

 blue crab and the cow. Alteration of 

 serological characteristics of antigens by 

 Formalin was a function of its concentra- 

 tion in the systems. 

 1954. Serological studies of some arachnids, 

 other arthropods, and mollusks. Physiological 

 Zoology, vol. 27, No. 4, p. 317-325. 



Deals primarily with serological relation- 

 ships (obtained with the "ring" or inter- 

 facial tests and by turbidimetric tests with 

 a photronreflectometer) among species in 

 the Arachnoidea and between this family 

 and C. sapidus and certain other Crustacea. 

 1956. Normal variation in the amount of 

 protein in the sera of some decapod Crust- 

 acea. Proceedings of the 14th International 

 Congress of Zoology, Section 9, p. 331-333. 

 Includes the blue crab. 



Lieberman, Edward M. 



1967a. Structural and functional sites of 

 action of ultraviolet radiations in crab nerve 

 fibers. I. The electrophysiological effects of 

 ultraviolet radiations. Experimental Cell 

 Research, vol. 42, No. 3, p. 489-507. 



Studied excitable membrane electrical 



characteristics as a function of membrane 



structure in single isolated motor nerve 



fibers of C. sapidus. 



1967b. Structural and functional sites of 



action of ultraviolet radiations in crab nerve 



fibers. II. Localization of the sites of action of 



UV radiation by experiments with Ca2 + and 

 ouabain. Experimental Cell Research, vol. 42, 

 No. 3, p. 508-517. 



C. sapidus motor axons were protected 



from ultraviolet radiations of 255 mp but 



not from 285 mju when suspended in crab 



physiological solution containing 2.5 times 



normal CaCl2. Two concentrations of Ca++ 



increased the light scattering properties of a 



Cephalin solution. Ouabain had biphasic 



effects on the repetitive response of crab 



axons. 



1967c. Structural and functional sites of 



action of ultraviolet radiations in crab nerve 



fibers. III. The photoinactivation of a 



Na+-K+- activated ATPase system and its 



correlation with inactivation of excitability. 



Experimental Cell Research, vol. 42, No. 3, p. 



518-535. 



To test the hypothesis of a correlation 

 between the functional state of a mem- 

 brane related Na+-K+- activated ATPase 

 system and the excitability and electrical 

 characteristics of crab (C. sapidus), the 

 enzyme system (prepared from crab nerve) 

 was subjected to radiations and assayed for 

 ATPase activity. 



Lieberman, E. M., R. F. Palmer, and G. H. 

 Collins. 



1967. Calcium ion uptake by crustacean 

 peripheral nerve subcellular particles. Experi- 

 mental Cell Research, vol. 46, No. 2, p. 

 412-418. 



A vesicular membrane system was prepared 

 from peripheral nerve of the blue crab. In 

 vitro Na+ released bound Ca2 + and simul- 

 taneously stimulated the Na+-K+- activated 

 ATPase system, suggesting a relationship 

 between these two systems and the control 

 of nerve excitability. 



Lieberman, Edward M., Margaret S. Perkins, 

 Tadao Tomita, and Ernest B. Wright. 



1967. Bioelectric phenomena related to pro- 

 tein-fixed charge in a crab nerve fiber. 

 Science, vol. 156, No. 3772, p. 240-242. 

 Experiments with single C. sapidus axons, 

 where various anions were substituted for 

 chloride in the surrounding medium, 

 indicated that bioelectrical phenomena are 

 related to fixed charges in the membrane. 



44 



