280 DELruiNTn^E. 



Loudon's Mag. Nat. Hist. v. The following are the measurements 



of this specimen : — ft, jn. 



Length along curve 21 3 



Length, straight 19 



Length to dorsal fin 8 2 



Length to pectoral fin 4 



Height of dorsal 4 



Height to dorsal 13 1 



Length of dorsal 2 4 



Length of pectoral 4 



Breadth of pectoral 2 8 



The following are the measurements of two skulls — No. 1 the 

 specimen a, from Essex, in the British Museum, and No. 2 the spe- 

 cimen numbered 1136 in the Museum of the College of Surgeons : — 



No. 1. No. 2. 

 in. iu. 



Skull : Length, entire 33 41 ^ 



Length of nose 19i 22^ 



Length of teeth-line 14| 20 



Length of lower jaw 21 \ 35 



Breadth at notch 10| 14 



Breadth at orbit 18 



Breadth at temple 18 



Breadth at middle of beak .... 9| 

 Breadth of intermaxillary .... 



Breadth in front 4 6 



Breadth in middle 3| 3| 



The skull, n. 1136 (see Owen, n. 2512) of the Museum of the 

 Eoyal College of Surgeons, called the Large Grampus {D. Grampus 

 in the Catalogue), is of most colossal size. It formed part of the 

 Hunterian collection, and is probably the skuU of the large speci- 

 men, 31 feet long, killed at Greenwich in 1793. — Bends, in Lucejikle. 

 It has teeth ||, very large, nearly to the notch. Intermaxillary 

 rather dilated, broader over the front of the nose. The rest of the 

 skeleton has been lately mounted and exhibited in the Museum of 

 the lloyal College of Surgeons. 



" The skeleton from Gstend in the Louvain Museum : — Vertebrae 

 50 or 51, viz. 7 cervical, 11 dorsal, 10 lumbar, and 22 or 23 caudal. 

 Ribs 11 . 11. The sternum formed of three bones, the first largest 

 and longest, the last short and broad. The first ribs on the front 

 outer edge of the first, the second on the suture between the first 

 and second, the third on the suture between the second and third, 

 the three others on the outer hinder edge of the last bone." — Flower, 

 P. Z. S. 1864. 



The pelvic bones are elongate, subcylindrical, slightly curved. 



In the Firth of Tay it goes up as far as the salt water reaches, 

 almost every tide at flood, during the months of July and August, 

 in pursuit of salmon, of which it devours immense mmibers. 



"The species is gregarious, and moves rapidly foi'ward in the water. 



