Dr. A. R. Duguicl on a Species o/ Dolphin. 133 



I ohsened unaltered for montlis together. This, unfortunately, 

 cannot be done with Spirogyrce, some of which, however, I have 

 been able to watch for several days before the death of the cell, 

 without detecting any change of the fold. 



For tliis reason it is quite inadmissible to regard the folds of 

 the cell-membrane as abortive septa, at least as long as the pro- 

 duction of such a septum by the amalgamation of the central 

 margins of a true fold has not been demonstrated in a single 

 instance, but, on the contrary, it has rather been observed that 

 incompletely developed folds occur only as accon)panying au 

 endogenous cell-development taking place not altogether without 

 disturbance, whilst in the normal development of the latter the 

 newly formed septa are unmistakeably recognizable as endo- 

 genous productions. 



[To be continued.] 



XIV. — Description of a Species of Dolphin /o«n// in the Orkney 

 Islands. By Alex. R. Duguid, M.D. 



[Plate III.] 



For many years I have heard the fishermen iu this neighbour- 

 hood speak of a species of Whale, with white s]K)t8 or stripes, 

 which they frequently met with when in pursuit of the Phoctena 

 melas, or Caaing Whale. The facility with which the latter is 

 driven on shore is well known : hence the specific name which 

 has been applied to it by some naturalist s — (hdnclor. But of 

 the capture of the former species, though frront nflv cliiivcd. I 

 have never heard of an instance till recently. 



On the 21st of August 1858, several tishernau \miu junximi^ 

 their avocation in Scapa Bay, near Kirkwall, when, a shoal of 

 whales making its appearance, all the boats went in pursuit. 

 On approaching the whales, they were discovered to be the 

 spotted or streaked species ; and some of the pursuers desisted 

 from all further efforts, expressing their opinion, from past ex- 

 perience, that it would be of no use attempting to capture them. 

 Some of the boats, however, pei-severed, and having succeeded 

 in getting a part of the shoal nearer to the beach, all again 

 resuujed the chase with renewed and vigorous efforts, and at last 

 landed twenty small whales, which were speedily put to death 

 by means of fishermen's knives and other lethal weapons. 



I saw the whales on the evening of their capture. 1 knew 

 them to be of a species which I had never seen before ; but it 

 was too dark to make au examination of them. I saw them 

 again on the 23rd of August, and, having selected a specimen 

 which was the least injured by the knives of the captors, I shall 



