COMMON TOPE. 



511 



smallest, and placed over the anterior edge of tlic pectoral 

 fins ; the pectoral fins are of moderate size, and triangular in 

 shape ; the ventral fins small, near the middle of the whole 

 length, and under the space between the first and second dor- 

 sal ; the tail rather less than half the length of the body, with 

 a bi-lobed fin ; the upper lobe terminal, oblique, and trun- 

 cated ; the inferior lobe with one deep triangular elongation, 

 and a smaller one near the end. 



All the upper part of the body and sides are of a uniform 

 slate grey, the under surface lighter in colour, inclining to 

 greyish white. 



The vignette represents the head of a Shark. 



