crabs indicated that the protozoea, rather 

 than the zoea, is the ancestral stem from 

 which the decapods have been derived. 

 1884b. The significance of the larval skin of 

 decapods. Studies of the Biological Labora- 

 tory, Johns Hopkins University, vol. 3, No. 1, 

 p. 1-27. 



The zoeal forms of the blue crab and other 

 decapods are compared and related to 

 phylogenetic stages. Concludes that all deca- 

 pods refer back to a form with segmented 

 thorax and abdomen, whose antennae were 

 locomotor organs. In their larval history, 

 the protozoea was modified by the free life 

 of the embryo, resulting in a zoeal stage. 

 The zoeae is a secondary larval modifica- 

 tion and not an ancestral form. 



Cook, C. 



1867. The edible crab in Salem. American 

 Naturalist, vol. 1, p. 52. 



Two specimens of blue crab taken near 

 Salem, Mass. 



Copeland, B. J. 



1965. Fauna of the Aransas Pass Inlet, Texas. 

 I. Emigration as shown by tide trap collec- 

 tions. Publications of the University Of Texas, 

 Institute of Marine Science, vol. 10, p. 9-21. 

 Collections in a tide trap indicated that 

 peak abundance of blue crabs in the inlet 

 was during late April and May, with a 

 biomass as great as 5 g. per m."^. 



Copeland, D. Eugene. 



1963a. Glandular cells, possibly osmoregula- 

 tory, in the gill leaflets of Callinectes. Biologi- 

 cal Bulletin (Woods Hole), vol. 125, No. 2, p. 

 376. Abstract only. 



The respiratory platelets of the gill of C. 



sapidus have a cellular patch (morphology 



given) near the efferent vessel which may 



account for the absorption of salts by the 



gills when the crab adapts to fresh water. 



1963b. Possible osmoregulatory cells in crab 



gills. Journal of Cell Biology, vol. 19, p. 16A. 



Abstract only. 



A patch, glandular in appearance, in the 

 respiratory leaflets of the blue crab may 

 account for salt absorption under hypo- 

 osmotic conditions. 



1964. Salt-absorbing cells in gills of crabs, 

 Callinectes and Carcinus. Biological Bulletin 

 (Woods Hole), vol. 127, No. 2, p. 367-368. 

 Abstract only. 



The fine structure of the salt-absorbing 

 cells in the gills of fresh-water adapted 

 crabs. This patch of cells and the network 

 of tubules associated with the patch hyper- 

 trophied in Callinectes on adaption to fresh 

 water. 



1966. Septate desmosomes and juxtaposition 

 membranes. Journal of Cell Biology, vol. 31, 

 No. 2, p. 24A. Abstract only. 



Morphology of desmosomes of C. sapidus, 

 Physalia, and Artemia. 



1967. Modified or "indirect" pinocytosis. 

 Journal of Cell Biology, vol. 35, No. 2, p. 

 27A-28A. Abstract only. 



Salt osmosis by the cells in the respiratory 

 platelets of the blue crab. The structure 

 and action of these cells indicate that they 

 may function in modified pinocytosis. 



1968. Fine structure of salt and water uptake 

 in the land crab, Gecarcinus lateralis. Ameri- 

 can Zoologist, vol. 8, No. 3, p. 417-432. 



Comparison of the fine structure of the 

 osmoregulatory tissue in gills of Gecarcinus 

 lateralis and C. sapidus, and discussion of 

 cellular mechanisms of water movement 

 from the ventral setae of each species of 

 crab up to the pericardial sac. 



Copeland, D. Eugene, and Austin T. Fitzjarrell. 

 1968. The salt absorbing cells in the gills of 

 the blue crab (Callinectes sapidus Rathbun) 

 with notes on modified mitochondria. 

 Zeitschrift filr Zellforschung und Mikro- 

 skopische Anatomie, vol. 92, p. 1-22. 



Fine structure of an epithelial layer of cells 

 in the respiratory platelets of the crab gill 

 that appear to absorb salt by active trans- 

 port. Possible correlations between the 

 structural mechanisms and the physiology 

 of active transport. 



Cornell, J. H. 



1948. Potential by-products of the South 

 Carolina fisheries industry. Bears Bluff Labo- 

 ratories, Wadmalaw Island, S.C., Contribution 

 No. 5, 10 p. 



Because only 14 percent of the blue crab is 

 edible meat, an estimated 1,290 tons of 



18 



