386 SQUALID,*:. 



est with a projecting outline near the tip ; above the tail 

 there is a flat space bounded by a short transverse ridge, and 

 a similar one opposite on the ventral side : lateral line 

 straight ; the keel on the body runs forward on the tail, and 

 there is a small keel beneath this confined to the tail itself. 

 The length along the lateral line, five feet eight inches and a 

 half; circumference in front of the dorsal fin, two feet eight 

 inches and a half; from the snout to the eye, four inches and 

 three-quarters ; diameter of the eye, one inch and one-tenth : 

 breadth between the eyes, five inches and one-quarter ; from 

 the snout to the margin of the upper lip, four inches and a 

 half, thence to the angle of the mouth also four inches and a 

 half; breadth of the mouth from angle to angle, eight inches 

 and one-quarter ; from the snout to the first gill-aperture, 

 one foot three inches ; snout to pectoral fin, one foot six 

 inches and a half ; length of pectoral fin, one foot one inch ; 

 breadth of pectoral fin, six inches and a half; snout to dorsal 

 fin, two feet one inch and three-quarters ; height of dorsal fin, 

 nine inches and three-quarters ; length of dorsal fin, ten 

 inches and one-quarter ; length of the free portion of it, three 

 inches ; space between the first and second dorsal fins, one 

 foot eight inches ; length from the snout to the anal aperture, 

 three feet eight inches ; extreme breadth of the tail, one foot 

 eight inches ; length of the tail in the mesial line, six inches 

 and one quarter. 



