Bigelow. — Explorations in the Gulf of Maine. 



PLATE 5. 



Occurrences of pelagic animals. 

 C. Clione limacina. 

 L. Limacina balea. 

 S. Sagitta serratodentata, abundant. 

 s. " " scarce. 



H. Eukrohnia hamata. 

 F. Salpa fusiformis. 

 M. " mucronata. 

 E. Euthemisto compressa. 



The curve marks the off-shore limit to abundance of Sagitta elegans, 



the curve the in-shore limit to abundant S. serratodentata. 



