316 Mr. W. Thompson's Contributions to the Fauna of Ireland, 



Galway coast, in Oct. 1840, by Wm. M'Calla. Mr. Alder describes 

 it:— 



" Shell thick, conical, opake, of a dull dirtyish white, with five 

 flat whorls, the last occupying about two-thirds of the shell. The 

 apex is slightly oblique ; the upper whorls smooth, the last rugose, 

 bulging and rather flattened in the middle, having strong coarse 

 strise crossed by indistinct lines of growth. Aperture ovate, white 

 and polished internally : outer lip thick, acute at the edge : inner lip 

 reflected on the pillar with a deep impression behind it, but no um- 

 bilicus. Tooth strong. Length l^ tenth of an inch ; breadth nearly 

 ^A tenth." 



<^ fBuccinum Zetlandicum, Forbes, Loudon's Mag. of Nat. Hist. 

 vol. viii. p. 593. fig. 62. 



A Buccinum taken on a long line in deep water near Bunowen, 

 county Galway, is considered by Professor Forbes to be his B. Zet- 

 landicum, though diff^ering in its being a thin shell, &c. — he does not 

 now feel certain of this being more than a variety of B. undatum. 

 The specimen is in the collection of Dr. Farran, who states that 

 others were procured by similar means. 



*^ ■\Pleurotoma Farrani, Thompson. Plate XIX. fig. 3. 



Shell fusiform, turreted, with nine volutions (well-marked), and 

 ten prominent ribs (on body whorl) ; closely- set deep strise extending 

 spirally over the whole shell. 



Length 7 lines ; breadth just above aperture 2 lines ; longitudinal 

 ribs very prominent, '* not continuous ft-om whorl to whorl," and 

 slightly angulated at summit ; aperture occupying nearly 3 lines in 

 length, elongate ear-shaped, strong rib of body whorl appearing just 

 outside it ; canal wide and long, turning a little obliquely to the left ; 

 outer and pillar lip smooth. 



Colour pale yellowish brown, with numerous darker brown nar- 

 row bands equal in breadth to the lighter coloured space between 

 them, winding spirally round the shell, and giving it when magnified 

 a very handsome appearance ; a single brown band of a much darker 

 hue at the top of each volution. This species comes near P. SmitJiii, 

 Forbes, 'Annals of Nat. Hist.' vol. v. p. 107. pi. 2. fig. 14. 



Of this shell, handsome both in form and colour, two specimens 

 were obtained by Dr. Farran on the Irish coast, he thinks at Port- 

 marnock. 



■fPleurotoma Ulidiana, Thompson. Plate XIX. fig. 2. 



Shell fusiform, turreted, with eight volutions, eleven ribs (on body 

 whorl) with coarse deep spiral strise. 



Length 7 lines ; breadth just above aperture 2^ lines ; volutions 

 very slightly ventricose, rather flattened at top, but less so than in 

 P. turricola ; ribs strong and coarse, " not continuous from whorl to 

 whorl ;" coarse cut strise across ribs and furrows ; aperture crescentic; 

 outer lip thin and in form of a bow ; pillar-lip somewhat hollowed ; 

 canal very short. 



Colour uniform dirty brown. 



