ILaguna 



Laboratory 



37 



of Laguna contain thousands of individuals, so that large numl)ers 

 were taken at different times during the summer. Considerable in- 

 terest attaches to this species because of its remarkable color varia- 

 tions. In the open, lighter pools specimens are very light ; among 

 the green algae in certain pools they have a greenish color; in pools 

 containing a variety and abundance of plant life they are usually 

 mottled and blotched, often with brilliant colors ; and in the deep, 

 narrow pools they are almost invariably dark. It would be iuipos- 



9 



Figures 9 and 10. Clinocottus analis 



Fig. 9, Ventral view of visceral and branchial organs. Fig. 10, Alimentary canal 

 removed. Showing pharyngeal teeth. H, Heart. L, Liver. T, Testis. O, Stomach. 

 K, Kidney. F, Urinary bladder. V, Vent. P, Papilla. Numbers refer to correspond- 

 ing regions in the alimentary canal. 



