540 Grampus captured in Lynn Harhcnxr, 



" T>elpMnus O^rca, Grampus, 



'* The body is nearly oval. The dorsal fin is very higff^ 

 The teeth are conical and slightly curved. The profile of 

 the grampus is oval and oblong. The greatest thickness is 

 about the middle of the trunk, from which it gradually di- 

 minishes towards both extremities. The snout is short and 

 round. The lower jaw is broader than the upper. Both jaws 

 are furnished with conical teeth, which are unequal and curved 

 at the top, and are from twenty to thirty in number in each jaw. 

 The eyes are situated in the same line with the opening of the 

 mouth. But the most distinguishing mark of the grampus is 

 the dorsal fin, which rises from the middle of the back, and is 

 nearly 4 ft. in height. The pectoral fins are very broad and 

 nearly oval. The tail fin is divided into two lobes in the form 

 of a crescent. The upper part of the body is black, the belly 

 is white. Sometimes white spots are discovered on the head 

 and back. The grampus is the largest fish belonging to the 

 genus. Some have been seen of 25 ft. in length, by 12 or 

 13 ft. in circumference." 



Our specimen varies from the above description in the fol- 

 lowing particulars : — 



Its dimensions are — 



Ft. In: 

 From the tip of the upper jaw to the division of the talt, following 

 the curve of the back - - - - 



From the tip of the under jaw to the same, in a straight line 



From the tip of the upper jaw to the anterior edge of the dorsal 



fiu - - _ . - 



From the posterior edge of the dorsal fin to the division of the 



tail - - - - - 



Base of the triangular dorsal fin - - - 



Height of ditto 



Length of the ovate pectoral fm - - - - 



Width of ditto . - - - - 



Distance of the two lobes of the caudal fin - - - 



Circumference of the body - _ - - 



From the tip of the upper jaw to the spiracle - 



From the tip of the lower jaw to the anterior edge of the pec- 

 toral fin-- - - - -4 



From the back tooth of the lower jaw to the same on the oppo- 

 site side -- - - - -.-0 10 



The teeth are twenty-four in each jaw, the seven backward 

 ones are cuspidate, the rest appear to have been the same, but 

 are now worn down. Those in the front are nearly concealed, 

 and a few of the central ones are curvated. The upper jaw 

 projects a little beyond the lower. The. eye is placed 5 in. 

 above the corner of the mouth. The orifice of the ear is 

 scarcely large enough to admit a pea, and is placed just 

 behind the eye in the white spot. The spiracle was so much 



