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
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