SEALS AND WHALES OF THE BRITISH SEAS. 125 



Of the habits of this species very little is known : its colour is black above, 

 shaded to white below, and its length from 8 to 12 feet; teeth from 21 

 to 25 on either side of each jaw, truncated when old. The figure is from 

 a drawing of a nearly adult male, taken at Holyhead, in October, 1868, for 

 which I am indebted to the kindness of Professor Flower. 



WHITE-SIDED DOLPHIN. 



The White-sided Dolphin {Delphimis acutus,]. E. Gray; Lagcnovhynchus 

 acutus, Gray, Zool. Erebus and Terror), is a rare species, which has occurred 

 in a few instances on the British coast; it is said, however, by Dr. A. R. 

 Duguid, often to be seen about the Orkney Islands, but rarely secured. Its 

 colour is black above and white below, between which runs a broad band of 

 yellowish brown, about the centre of which, and surrounded by it, is a large 

 oblong patch of pure white. The adult measures from 6 to 8 feet in length. 

 A figure and description, by Dr. Duguid, taken from one of a herd of twenty 

 landed at Kirkwall, on the 21st August, 1858, will be found in the 'Ann. and 

 Mag. of Nat. Hist.' (3rd series) for August, 1864, vol. xiv., p. 133. 



WHITE-BEAKED DOLPHIN. 



The last species on the British list, the White-beaked Dolphin {Delphmus 

 albirostris, J, E. Gray ; Lagenorhynchus albirostris, J. E. Gray, Zool. Erebus 

 and Terror), is also of rare occurrence : it is a native of the North Atlantic, 

 has occurred at the Faroe Islands, and on the coasts of Norway and Sweden, 



