BARLEEIA. 57 



composed of 5 or 6 irregularly concentric portions, the marks 

 of division or growth being obscure ; columellar side grooved 

 near the margin, and having a corresponding rib under- 

 neath. L. 0-125. 13. 0-6. 



Yar. 1. unifasciata. Creamcolour or whitish, with a broad 

 band of reddish-brown encircling each whorl, sometimes di- 

 vided into two narrower zones. Turho unifasciatus, Mont. 

 Test. Br. p. 320 ; F. & H. pi. Ixxx. f. 3. 



Yar. 2. pallida. A^Tiite, with a faint tinge of blush colour. 



Habitat : Seaweeds at low Avater in the Channel 

 Isles^ and on many parts of the coasts of Dorset, Devon, 

 and Cornwall; Cork (Wright and J. G. J.); Bantry 

 (Barlee and Norman); Comiemara (Barlee and Alcock); 

 Bundoran, co. Donegal (J. G. J.). The following re- 

 qnire confirmation : — Southampton (Montagu) ; Tenby 

 (Lyons); Whitley, Northumberland (Fryer); Dublin 

 Bay (Turton) ; Lamlash Bay, Bute (Landsborough) ; 

 Dunbar (Laskey) ; Aberdeenshire (MacgilliATay) . Both 

 varieties occur with specimens of the usual colour. The 

 foreign localities are Cherbom-g and adjacent coast 

 (Mace); Rochelle (D^Orbigny pere and J. G. J.); Biar- 

 ritz (v. Martens, ^^eTroschel); Gulf of Lyons (Michaud 

 and Martin) ; Nice (Verany) ; Spezzia (J. G. J.) ; Corsica 

 (Michaud, D^Orljigny pere, and Requien) ; Dalmatia 

 (Brusina) ; Sicily (Philippi) ; and Teneriffe (M^A.ndrew) . 



B. rubra is tolerably active. It occasionally secretes 

 a slight mucous filament, by which it suspends itself 

 from a seaweed or the surface of the water ; and it also 

 floats, with the foot uppermost, like iheRissocB. The faecal 

 pellets are oval and whitish. The male is smaller than 

 the female. I unfortunately misled the authors of the 

 ' British Mollusca ' by communicating the description 

 which they published as that of the animal of the va- 

 rity unifasciata ; it was taken from Hydrobia idva (as 

 Mr. Clark suspected) . The living shell of the present 



D 5 



