Contents — continued 



GILMARTIN, MALVERN, and NOELIA REVELANTE. The concentration of mer- 

 cury, copper, nickel, silver, cadmium, and lead in the northern Adriatic anchovy, 

 Engraulis encrasicholus, and sardine, Sardina pilchardus 193 



ANDERSON, WILLIAM W., JACK W. GEHRINGER, and FREDERICK H. 

 BERRY. The correlation between numbers of vertebrae and lateral-line scales in 

 western Atlantic lizardfishes (Synodontidae) 202 



RICE, STANLEY D., and ROBERT M. STOKES. Acute toxicity of ammonia to 



several developmental stages of rainbow trout, Salmo gairdneri 207 



Notes 



TILLMAN, MICHAEL F. Additional evidence substantiating existence of northern 



subpopulation of northern anchovy, Engraulis mordax 212 



LOOSANOFF, VICTOR L. Comment. Introduction of Codium in New England 

 waters 215 



