266 



Comparative Animal Physiology 



TABLE 47 (continued). 



RESPIRATORY RESPONSE TO O. WANT AND CO. INCREASE 

 + =positive stimulation. — =no effect. ( ) z^guestionable effect. 



Animal 



Homarus vulgaris (lobster)'^ 

 Gammariis pulex (amphipod)^" 

 Gammarus locusta (amphipod)^ 

 Pandalus borealis (prawn)^"' 

 Eriocheir sinensis (decapod)^"^ 



Carcinus maenas (shore crab)"'" 

 Asellus aquaticus (isopod)"* 

 Ligifl Oceania (isopod)"' 



Cirolana horealis (isopod)^''" 

 Idotea neglecta (isopod)"'^ 

 Anilocra physodes (isopod)"^ 

 Nerocila bivittata (isopod)^"^ 

 Squilla mantis (stomatopod)"° 

 INSECTA 



Periplaneta americana (cockroach)^"" 

 Corixa geojfroyi (aquatic insect)" 

 Dixippus (stick insect)^' "* 

 Dixippus morosus (stick insect)^ 



Aeschna grandis (dragonfly nymph)'' 



Dytiscus (water beetle)* 



Chortophaga (grasshopper)'^ 



Dissosteira (grasshopper)^ 



Arphia (grasshopper)"'* 



Xeropsylla chepis (flea)^"' 



Melolontha (beetle)"' 

 ARACHNOIDEA 



Spider"' 

 TUNICATA 



Salpa sp. (tunicate)"" 

 OSTEICHTHYES 



Perca fluviatilis (perch )^** 



Perca (perch)^' 



Phoxinus laevis (minnow)'*' 



Leuciscus (fish)™" 



Carassius (goldfish )""' 



AMPHIBIA 

 Rana CiiogT' 

 Rana esculenta (frog)^ 

 Rana temporaria (frog)**' 

 Hyla arhorea (tree frog)^^' 

 Bufo marinus (toad)^"* 



REPTILIA 



Emys orbicularis (turtle)*^ 

 Chelodina longicollis (turtle)^ 

 Tropidonotus natrix (snake)^ 



Movement 

 Type of Respiratory 



O. Want 



Increase 

 CO. 



pleopod movement 

 pleopod movement 

 scaphognathite movement 



pleopod movement 



(at O2 tensions above 

 normal the beat slows,) 

 pleopod movement 



+ 

 + 

 + 

 + 

 + 



+ 



+ 

 + 



+ 



+ 



+ 



+ 



+ 

 + (in 

 excess) 



+ 

 + 



+ 



