18 



HOMOIOTHERMISM 



TABLE I 



BoDT Temperaturb of Certain Cold Blooded Animals 



(After Rogers, 1916) 



Form 



Range 



Conditions 

 and Method 



Temperature of 



Animal above that 



of Environment 



Observer 



Medusa . . . . 

 Earthworm. 



Leeches. 



56 deg. F. 

 56-54 deg. F. 



Worms 



Ceylon jungle leech 



Echinoderms. 

 Snails 



Several in glass 

 by thermometer 



Several in glass 

 by thermometer 



Snail 



Oyster. . . 

 Crustacea . 



Insects. . . 



Bees. 



Bees. 

 Bees. 



Fishes: 

 Bonita. 

 Trout. . 



Eel 



Fishes (?) . 



Fishes (?) . 



Fishes (?) . 



Fishes (?) . 



Carp 



Carp 



Carp 



Mackerel . . . 

 Herring .... 

 Amphibia . . 



Frog. 

 Frog. 



54 deg. F. 



76.25 deg. F. 



82 deg. 

 72-80 deg. F. 



62-83 deg. F. 



19.2 deg. C. 



Several in glass 

 by thermometer 



Individuals ther- 

 moelectric 

 Hive 



57-69 deg. F. 

 Below 57 deg. 



80.5-78 deg. F. 

 86-40 deg. F. 



Thermoelectric 



Thermoelectric 



Heart muscle 



51 deg. F. 



66.5 deg. F 



80.5 deg. F. 



4.6-6.04 deg. C. 



58-86 deg. F. 



Stomach 

 Stomach 



Rectal tempera- 

 ture 

 In air 



In water 



0.27 deg. F. 

 2.0-2.5 deg. F. 



1.0-1.5 deg. F. 



4.4-5.8 deg. F. 



Same as water or 



air 



0.40 deg. F. 



1.25 deg. F. 



0.25 deg. F. 

 Same as water 

 1 deg. below to 



same as water 



8 deg. below to 



10.5 deg. F. 



above 



O.lSdeg. C. 



0.25 deg. C. 

 0.55-10.5 deg. C. 

 Same as air 



Form clusters and 

 raise tempera- 

 ture 



1 . 5-5 deg. F. 

 28 deg. below to 

 2 deg. F. above 

 Same as air 

 0.55 deg. F. 

 1.38 deg. F. 

 6.2-9.3 deg. F. 

 1.2-6.2 deg. F. 

 3 deg. F. 

 0.86 deg. F. 

 1.9-3.5 deg. F. 



8.5 deg. F. 



0.0-1.2 deg. C. 



3.0 deg. below to 



8.5 deg. F. above 



Temperature less 



than air 

 Same as water 



Valentin 

 Hunter 



Hunter 



Davy 

 Davy 



Valentin 

 Hunter 



Davy 

 Davy 

 Davy 



Davy 

 Davy 



Dutrochet 



Dutrochet 



Phillips & 

 Demuth 



Phillips & 

 Demuth 



Davy 

 Davy 



Davy 



Martin 



Kraft 



Broussouet 



Broussouet 



Boniva 



Depreta 



Hunter 



Davy 



Simpson 



Davy 



Berthold 



Berthold 



The factors which influence the temperature of ani- 

 mals may be regarded as either extrinsic or intrinsic. 



