PHYSICOCHEMICAL AND BIOLOGICAL STRESSORS 139 



Darnell, R. M., 1958, Food Habits of Fishes and Larger Invertebrates of Lake 



Ponchartrain, Louisiana, An Estuarine Community, Publ. Inst. Mar. ScL, 



Univ. Tex., 5: 353-416. 

 De Turk, W. E., 1940, The Parasites and Commensals of Some Crabs at Beaufort, 



North Carolina, Ph.D. Thesis, Duke University, Durham, N. C. 

 Estevez, M., 1972, Estudio preliminar sobre la biologi'a de dos especies 



alopatricas de cangrejos brachyrhyncha del Pacifico Colombiano, Bol. Museo 



Mar (U. Bogota Jorge Tadeo Lozano, Fac. Cienc. Mar.), 4: 1-17. 

 Fenchel, T., 1970, Studies on the Decomposition of Organic Detritus Derived 



from the Turtle Grass Thalassia testudinum, Limnol. Oceanogr., 15: 14-20. 

 Garth, J. S., and W. Stephenson, 1966, Brachyura of the Pacific Coast of 



America Brachyrhyncha: Portunidae, Allan Hancock Monogr. Mar. Biol, 1: 



1-154. 

 Gibbs, R. J., 1970, Circulation in the Amazon River Estuary and Adjacent 



Atlantic Ocean, J. Mar. Res., 28: 113-123. 

 Holthuis, L. B., 1959, The Crustacea Decapoda of Suriname (Dutch Guiana), 



Zool. Verh. (Leiden), 44: 1-296. 

 — , 1969, Portunus binoculus, N. Sp., A New Deep-Water Swimming Crab from 



the Caribbean Region (Crustacea, Decapoda, Brachyura), Bull. Mar. Sci., 19: 



409-427. 

 Humes, A. G., 1941, Notes on Octolasmis mulleri (Coker), A Barnacle 



Commensal on Crabs, Trans. Am. Microsc. Soc, 60: 101-103. 

 MacArthur, R. H., 1972, Geographical Ecology: Patterns in the Distribution of 



Species, Harper and Row Publishers, Inc., New York. 

 Norse, E. A., 1975, The Ecology of Blue Crabs, Genus Callinectes (Brachyura: 



Portunidae) in the Caribbean, Ph.D. thesis. University of Southern 



California. 



, 1977, Aspects of the Zoogeographic Distribution of Callinectes (Brachyura: 



Portunidae), Bull. Mar. Sci., 27: 440-447. 

 , and M. Estevez, 1977, Studies on Portunid Crabs from the Eastern Pacific. 



I. Zonation Along Environmental Stress Gradients from the Coast of 



Colombia, Mar. Biol., 40: 365-373. 

 , and V. Fox-Norse, 1977, Studies on Portunid Crabs from the Eastern 



Pacific. II. Significance of the Unusual Distribution of Euphylax douii. Mar. 



Biol., 40: 374-376. 

 Odum, W. E., and E. J. Heald, 1972, Trophic Analyses of An Estuarine 



Mangrove Community, Bull. Mar. Sci., 22: 671-738. 

 Randall, J. E., 1967, Food Habits of Reef Fishes of the West Indies, Stud. Trop. 



Oceanogr., 5: 665-847. 

 Schoener, T. W., 1969, Size Patterns in West Indian Anolis Lizards. I. Size and 



Species Diversity, Syst. Zool., 18: 368-401. 

 Stephenson, W., 1962, Evolution and Ecology of Portunid Crabs, with Especial 



Reference to Australian Species, in The Evolution of Living Organisms, 



G. W. Leeper (Ed.), pp. 311-327, Melbourne University Press, Melbourne, 



Victoria, Australia. 

 Tagatz, M. E., 1968, Biology of the Blue Crab Callinectes sapidus Rathbun in 



the St. Johns River, Florida, Fish. Bull, 67: 17-33. 

 Taissoun, E., 1972, Estudio comparativo, taxonomico y ecologico entre los 



cangrejos (Dec. Brachyura. Portunidae), Callinectes maracaiboensis (nueva 



especie), C. bocourti (A. Milne Edwards) y C. rathbunae (Contreras) en el 



Golfo de Venezuela, Lago de Maracaibo y Golfo de Mexico, Bol. Cent. 



Invest. Biol., Univ. Zulia, 6: 1-45. 



