ANNALS OF NATURAL HISTORY. 



XVI. — Observations on the Coregoni of Loch-Lomond. By 

 Richard Parnell, M.D., F.R.S.E. 



(With a Plate.) 



I N Loch-Lomond, one of the largest and most picturesque 

 lakes in the west of Scotland, are found two species of Core- 

 gonus, one of which I believe to be an undescribed British spe- 

 cies, and the other, which was first noticed by Lacdpede under 

 the name of " Coregone Clupeoi'de," has been confounded by 

 British naturalists with the Cor eg onus Lavaretus or Ulswater 

 Gwiniad. Pennant, in his third volume of British Zoology, 

 considers the Coregonus of Loch-Lomond to be the same as 

 the Vendace of Lochmaben, the Gwiniad of Ulswater, and the 

 Pollan of Loch Neagh in Ireland. Dr. Fleming in his work 

 on British Animals entertains the same opinion. Sir William 

 Jardine, Bart, in the third volume of the Edinburgh Journal 

 of Natural and Geographical Science has given an interesting 

 account of the Vendace of Lochmaben, and has clearly shown 

 it to be a distinct species from the other British Coregoni. 

 Mr. Thompson of Belfast has satisfactorily proved the Pollan 

 of Loch-Neagh to be also a distinct species, and has minutely 

 pointed out the characters in the first volume of the Zoological 

 and Botanical Magazine ; nor should I be surprised still to 

 find additional species were attention directed to the Gwiniads 

 of Cumberland, since the whole of the Coregoni are so closely 

 allied. From Lacepede's short and imperfect description of 

 the Coregone Clupeoide, and as two species are found inhabit- 

 ing the same locality, it is impossible to state with certainty 

 to which he alludes ; therefore to prevent the confusion which 

 otherwise might arise from synonyms, I propose for the one 

 species the name of Coregonus Lacepedei, and for the other Co- 

 regonus microcephalus. 



Ann. Nat. Hist. Vol.1. No. 3. May 1838. m 



