92 



LENGTH OF ALIMENTARY CANAL. 



vegetable food (purslain), the intestinal canal gradually became much enlarged, 

 and resembled, in some respects, that of the gopher. 



The colon and rectum of carnivorous chelonians generally contain the shells of 

 invertebrate animals, and parts of leaves and grasses. During starvation, all the 

 organic constituents of the shells gradually disappear, and nothing remains in the 

 colon but white chalk-like masses, which I determined, in several instances, to be 

 carbonate and phosphate of lime. The intestines, from the stomach to the anus, 

 never contained any large amount of bile, showing that it was absorbed. 



The stomach of cold-blooded animals gives an acid reaction during starvation and 

 digestion. During starvation, the small intestines give, in many places, a feeble 

 acid, and in others a neutral reaction. When fed upon vegetable substances, the 

 reaction from the stomach to the anus was acid. 



TahJe showing the length of the Alimentary Canal in various Animals. 





TV Uil U^il (. 



TiPnrrtn ^if tnP 





of the body. 



alimentary canal. 



FISHES. 



Grains. 



Indies. 



Trygon sahina (Stingray) ........ 



16,400 



12 



Zygcena malleus (Hammerhead Shark) ..... 



54,350 



28 



Lepisosteus osseus (Garfish) ....... 



22,303 



30 



Lepisosteus osseus (Garfish) ....... 



52,110 



281 



KEPTILES. 







Menopoma Alleghanensis ........ 





24 



Rana catesbceana (Bullfrog) ....... 



9,800 



34 



Heterodon niger (Black Viper) ....... 



4,620 



26 



Psammophis JlageUiformis {Coa.c\i^\A^ ^nsko) .... 



5,141 



42 



Coluber guttatus (Corn Snake) ....... 



9,600 



54 



Coluber constrictor (Black Snake) ...... 



5,100 



36 



Crotalus adamanteus (Rattlesnake) ...... 



6,180 



42 



Alligator Mississippiensis (Alligator), female .... 



211,940 



147 



Alligator Mississippiensis (Alligator), male ..... 



76,507 



60 



Chelonia caretta (Loggerhead Turtle) ...... 



36,985 



102 



Chelonura serpentina (Snapping Turtle) ..... 

 Emys reticulata (Chicken Terrapin) . . . . . 



16,235 



46 



8,400 



38 



Emys serrata (Yellow-bellied Terrapin) ..... 



27,172 



66 



Emys serrata (Yellow-bellied Terrapin) ..... 



14,400 



54 



Emys serrata (Yellow-bellied Terrapin) ..... 



23,100 



60 



Trionix ferox (Soft-shelled Turtle) ...... 





48 



Testudo polyphemus (Gopher) ....... 



45,500 



78 



Testudo polyphemus (Gopher) ....... 



18,368 



54 



BIRDS. 







Tantalus loculator (Wood Ibis) ....... 



39,375 



84 



Tantalus loculator (Wood Ibis) ....... 



37,625 



84 



Ardea nycticorax (Night Heron) ...... 



10,095 



90 



Cathartes atratus (Black Turkey-Buzzard) ..... 



31,937 



60 



Syrnium nebulosum (Barred Owl) ...... 



10,580 



36 



Ortyx Virginiana (Quail) . . . . . - . 



2,760 



40 



Meleagris gallopavo (Wild Turkey) ...... 



36,312 



72 



Meleagris gallopavo (Wild Turkey) ...... 



28,875 



68 



MAMMALS. 







Didelphis Virginianus (Opossum) ...... 



18,812 



51 



Common Cat 



35,000 



64 



Pointer Dog .......... 



247,126 



138 



Procyon lotor (Raccoon) ........ 



47,787 



216 



Procyon lotor (Raccoon) . . . . . . _ . 



54,735 



180 



Procyon lotor (Raccoon) ........ 



59,110 



180 



Sciurus Carolinensis (Gray Squirrel) ...... 



6,960 



120 



Sciurus capistratus (Black Fox Squirrel) ..... 



14,710 



123 



Cervus Virginianus (foetus of Deer) ...... 



26,935 



234 



Common Slieep .......... 



385,000 



1,056 



