110 



KINETIC HORMONES — I 



Fig. 3-24. Diagram relating the geological age of certain vertebrate 

 groups to the present day means of controlling their melanophore 

 responses. IHBII^B predominantly, if not wholly, humoral; 

 ■ ■ ■ ■ mixed humoral and nervous ; ■■■■■■ mainly nervous 

 (after Waring, 1942). It seems probable that hormones play a 

 larger part in the control of Phoxinus and Gasterosteus than this 

 suggests (Healey, 1948; Hogben and Landgrebe, 1940). On the 

 other hand there is some evidence for partial nervous control in 

 some Mustelidae (Brown, 1950fl). 



3.3 References 



Abramowitz, a. a. and Abramowitz, R. K. (1938). On the specificity 



and related properties of the crustacean chromatophorotropic hormone. 



Biol. Bull. Wood's Hole, 74: 278-296. 

 Alexandrowicz, J. S. and Carlisle, D. B. (1953). Some experiments on 



the function of the pericardial organs in Crustacea, jf. mar. biol. Ass. 



U.K. 32: 175-192. 



