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BIOCHEMICAL STUDIES OF PHYLOGENY 



Table 2 



From Table 2 it can be seen that Arenicola and Myxicola have 

 TP whilst Nereis diversicolor has GP as its main phosphagen. 

 Hermione and Aphrodite have CP whilst none of them had AP. 



About the same time Roche and Robin (1954) showed the 

 presence of CP in the sponge Thetia lyncurium and AP in the 

 sponge Hymeniacidon caruncula. Hymeniacidon also had glyco- 

 cyamine (but not GP) whilst Thetia had taurocyamine (but no 

 TP). 



Roche et al. (1957) made a thorough survey of the distribution 

 of arginine and creatine in the animal kingdom, using the methods 

 of chromatographic separation and semi-specific chemical tests. 

 The species that they analysed and the results they obtained are 

 shown below. 



