CATEGORIES OF SUBJECT INDEX 



1. Taxonomy. 20. 



2. Morphology. 



3. Regeneration, Deformities, Color extremes. 



4. Sexual dichromatism. 



5. Physiology: 



a. Respiration, Gills, Metabolic rate. 



b. Digestion, Hepatopancreas, Metabolism, 

 Amino acids. 



c. Circulation, Blood, Osmotic and ionic 

 regulation. 



d. Reproduction, Sex determination. 



e. Muscles. 21. 



f. Nerves. 22. 



g. Exoskeleton, Shell pigment. 23. 

 h. Eyestalk hormones, Sinus gland, Molt 



control, Chromatophore activation, 



Physiological rhythms, 

 i. Chemoreception. 

 j. Light sensitivity, Vision. 



6. Distribution, Abundance, Conservation. 



7. Occurrence in fresh or hypersaline waters. 



8. Life history (Mating, eggs, and young). 



9. Growth of larvae. 



10. Growth of juveniles. 



11. Food and feeding of larvae. 



12. Food and feeding of juveniles and adults. 



13. Behavior. 



14. Migrations, Tagging. 



15. Natural predators. 24. 



16. Diseases, Parasites, Commensals. 25. 



17. Competitive species. 



18. Associated species. 26. 



19. Effects on other species. 27. 



Effects of environmental factors: 



a. Explosions. 



b. Red tide (Dinoflagellate blooms). 



c. Pesticides. 



d. Low dissolved oxygen. 



e. Salinity, Temperature. 



f. Atomic wastes (Radioactivity). 



g. Dredging, Channel construction, Weirs, 

 Marsh destruction. 



h. River flow, 

 i. Fluoride. 

 Mass mortalities. 

 Fishery. 

 Industry: 



a. Historical review, General survey (Value, 

 Characteristics). 



b. Processing and pasteurization. 



c. Freezing. 



d. Automation. 



e. Marketing, Transportation. 



f. Sanitation, Regulations. 



g. Quantity of meat per crab, 

 h. Composition of meat. 



i. Bacteriological and quality control of meat, 

 j. By-products, 

 k. Pond culture. 



1. Soft crabs (Handling, Marketing, Micro- 

 biological studies). 

 Statistics (Fishery, Industry). 

 General (Popular account of life history, 

 fishery, or industry). 

 Research programs. 

 Bibliography. 



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