310 PISCES. 



(I. CHRYSOPHRYS.) From four to six conical incisors in each jaw; 

 molars large, in three or more rows. 



(2. PAGRUS.) Conical incisors in front, with card-like teeth behind; 

 molars of moderate size, in only two rows. 



(3. PAGELLUS.) All the anterior teeth fine and card-like: molars 

 small, in two or more rows. 



11. DENTEX. All the teeth conical, and forming but 

 a single row ; some of the anterior ones longer than the 

 others, and hooked : cheeks scaly : a single dorsal : branch- 

 iostegous membrane with six rays. 



12. CANTHARUS. All the teeth card-like, and 

 crowded together ; the anterior row larger, and more 

 hooked, than the others : cheeks scaly : branchiostegous 

 membrane with six rays. 



V. SQUAMIPINNATL Body compressed; 

 scaly : dorsal and anal jfins, or at least their 

 soft portions, closely covered with scales. 



13. BRAMA Both jaws, as well as the palatine 



bones, with card-like teeth : dorsal and anal fins long : 

 the spinous rays few in number : branchiostegous mem- 

 brane with seven rays. 



VI. SCOMBRID^E. Opercular pieces without 

 denticulations : scales very small: body smooth: 

 vertical fins not scaly. 



14. SCOMBER. Lateral line unarmed: two dorsals; 

 the first continuous ; posterior rays of the second, as 

 well as the corresponding rays of the anal, separated into 

 spurious finlets : body fusiform : branchiostegous membrane 

 with seven rays. 



(1. SCQMBER.) First dorsal separated from the second by a wide 

 space : scales small, and every -where uniform : sides of the 

 tail with two small cutaneous ridges. 



(2. THYNNUS.) First dorsal reaching nearly to the second: some 

 large scales surrounding the thorax, forming a corselet : sides 

 of the tail with a cartilaginous keel between two small cuta- 

 neous ridges. 



