78 



depth of the body equal to the lengtli of the head : the jaws equal, 

 both occasionally furnished with a few delicate teeth ; the tongue 

 with many teeth : the lateral line sloping downwards for a short way 

 from the ojierculum, and thence passing straight to the tail : nine rows 

 of scales from the dorsal fin to the lateral line, and the same number 

 thence to the ventral fin ; the row of scales on the back and that of the 

 lateral line not reckoned : the third ray of the pectoral fin the longest. 



D. 2 + 12. P. 16. V. 1 + 11. A. 2+11. C. 19. B. d.—Fertebns 59. 



Colour to the lateral line dark blue, thence to the belly silvery ; 

 dorsal, anal, and caudal fins towards the extremity tinged with black; 

 pectoral and ventral fins of crystalline transparency, excepting at 

 their extremities, which are faintly dotted with black, hides sil- 

 very, pupil black. 



As not one of the Coregoni, of which I can find descriptions, agrees 

 with the Lough Neagh species, I am induced to consider it as new, 

 and venture to propose for it the name of Coregonus Pollan, as by 

 this trivial appellation it is invariably known in its native district. 



Cephaloptera, Dura. A fish of this singular genus, taken about 

 five years ago on the southern coast of Ireland, and thence sent to 

 the Royal Society of Dublin, is at present preserved in their Museum. 

 In breadth it is about 45 inches. The specimen being imperfect, and 

 the characters of some of the species being ill defined, I hesitate 

 applying to it a specific name. It somewhat resembles the Ce^j/j. 

 Giorna, as figured by Risso. 



Physalia pelagica, Eschsh. On the 13th of March, 1834, a spe- 

 cimen of this Physalia was found by Miss Ball of Youghal, on the 

 coast of the county of Waterford, near Ardmore. When taken up it 

 exhibited great brilliancy of colour. To Mr. Gray I am indebted 

 for the opportunity of consulting the work of Eschsholtz (Syst. der 

 Acaleph.), according to which the P/i^/s. ^t/a^ica of Lamarck differs 

 from this, being identical with his Phys. Caravella. The Phys. tuber- 

 culosa of Lamarck is considered by Eschsholtz synonymous with his 

 Phys. pelagica. 



Orange-legged Hobby, Falco ntfipes, Bechst. An immature spe- 

 cimen of this bird, shot in the county of Wicklow in the summer of 

 1832, forms part of the collection of T. W. Warren, Esq., of Dublin. 



Snowy Owl, Noctua nyctea, Sav. About the 26th of March, 1835, 

 one of these birds was shot near Portglenone, county Antrim, and 

 came into possession of Dr. Adams of that place, who presented it 

 to the Natural History Society of Belfast: the individual now exhi- 

 bited is said to have been seen along with it. On the 21st of the 

 same month a bird of this species was seen on an open or heath- 

 covered moor about twenty miles distant from Portglenone, by two 

 of my friends, within a few yards of one of whom it sprung, just as 

 he had fired at a Snipe. 



In Dublin I subsequently saw a specimen of this Owl which had 

 been shot in the county of Mayo, also in the month of March ; and I 



