containers showed no appreciable dif- 

 ference in the relative keeping quality 

 during shipping and storage. 



Pounds, Sandra Gail. 



1961. The crabs of Texas. Texas Game and 

 Fish Commission, Bulletin No. 43, 57 p. 



Blue crab anatomy, life history, fishery, 

 and industry. Taxonomic key and diagrams 

 of crabs of Texas. 



Powar, C. B. 



1969. Musculature of the eyestalk in Crus- 

 tacea. Acta Zoologica, vol. 50, No. 1-2, p. 

 127-141. 



Types and disposition of muscles of the 

 eyestalks in the blue crab and nine other 

 crustaceans. 



Pritchard, Donald W. 



1951. The physical hydrography of estuaries 

 and some applications to biological problems. 

 Transactions of the 16th North American 

 Wildlife Conference, p. 368-376. 



Studies of the physical structure and circu- 

 lation of Chesapeake Bay region may 

 explain the unpredictable fluctuations in 

 blue crabs. It may be possible to show that 

 under certain conditions of river flow crab 

 larvae are more likely to be carried out of 

 the Bay and lost. 



Proctor, Nathaniel K. 



1952. The effects of calcium on isolated 

 arthropod muscle fibers. Biological Bulletin 

 (Woods Hole), vol. 103, No. 3, p. 421-432. 



Studies on muscle fibers of C. sapidus, 

 Homarus americanus, and Schistocerca 

 americana to determine if the gelation of 

 the muscle protoplasm is influenced by the 

 calcium ion, to compare the rate of clotting 

 of invertebrate and vertebrate fibers, and to 

 determine if the clotting reaction can be 

 inhibited. 



Prosser, C. Ladd. 



1955. Physiological variations in animals. Bio- 

 logical Reviews, vol. 30, No. 3, p. 229-262. 

 Tests on blue crab acclimation and osmo- 

 concentration are included in a review of 

 studies on survival of animals collected at 

 different salinities. 



Puncochar, Joseph F., and S. R. Pottinger. 



1954. Commercial production of meat from 

 the blue crab (Callinectes sapidus). A study of 

 sanitary requirements of handling operations 

 and suggestions for technological improve- 

 ments. U.S. Fish and Wildlife Service, Tech- 

 nical Leaflet No. 8, 39 p. 



Methods in the production of crab meat 

 along the Atlantic and Gulf coasts, 

 including descriptions of buildings and 

 equipment. Bacteriological studies estab- 

 lished the sources of contamination of 

 meat by Escherichia coli. Practical aspects 

 of heat treatment on canned meat. Changes 

 in crab meat during storage were ascer- 

 tained by chemical tests. Recommenda- 

 tions on sanitary preparation. 



Puyear, Robert L. 



1966. The uridine diphosphate glucose to 

 D-glucuronate pathway in the blue crab, 

 Callinectes sapidus Rathbun. Virginia Journal 

 of Science, vol. 17, No. 4, p. 282. 



Digestive gland enzymes oxidize uridine 

 diphosphate glucose to uridine diphosphate 

 glucuronate, to form glucuronides and 

 glucuronate-1-phosphate from uridine 

 diphosphate glucuronate. 



1967. The glucuronic acid pathway in the 

 blue crab Callinectes sapidus Rathbun: The 

 enzymes of the UDPglucose to glucuronic 

 acid portion of the pathway. Comparative 

 Biochemistry and Physiology, vol. 20, No. 2, 

 p. 499-508. 



Several enzymes of the glucuronic acid 

 pathway were studied in digestive gland 

 tissue. The enzymes for oxidizing UDPglu- 

 cose to glucuronic acid appear to be the 

 same as those found in the tissues of 

 mammals. 

 1969. Molt cycle regulation of nucleotide 

 pyrophosphatase in the he pato pancreas of the 

 blue crab, Callinectes sapidus Rathbun. Com- 

 parative Biochemistry and Physiology, vol. 

 28, No. l,p. 159-168. 



Results indicated three nucleotide pyro- 

 phosphatases in the hepatopancreas of the 

 blue crab. The activity of these enzymes is 

 related to the stage of the molt cycle, and 

 their possible relation to molt cycle activity 

 is discussed. 



57 



