154 



Intorta. Patella Intorta. Br. Zool. t. 90. f. 148. 



Don. Br. Shells, v. t. i46. 

 Lin. Trans, viii, p. 231. 



Mr. Pennant's draftfman not having been very corre6l 

 in the figure of this fliell, we had been induced to believe it 

 a mere variety of Patella pellucida ; recent opportunity 

 however of examining a Ihell dilcovered by Mr. Laskey in 

 Bideford hay, on the north coaft of Devon, and afterwards 

 on the Scoti/h coaft, which is confidered by that gentleman 

 as the intorta of the Britijh Zoology, obliges us to requeft the 

 reference to this IhcU under the title of P. pellucida may 

 be cancelled. 



Shell ovate, with upwards of twenty equidifiant tubercii- 

 lated ribs, and alternate Imaller obfoleie ones : beak lituated 

 at one end, and turning downwards : colour rufous- brown ; 

 fome of the tubercules almofl black, infide paler ; the mar- 

 gin (lightly indented by the ribs. Length three fourths of an 

 inch ; breadth rather more than half an inch ; height rather 

 lefs. At a little diftance has the colour, and fomewhat the 

 appearance of a nutmeg. 



Mr. Donovan has given a very excellent figure of this 

 (hell, and very juftly remarks that it is perfedUy diftin^l 

 from the Mammil/aris of Gmelin. 



Parva. Patella virginea. Gmel. Syst. p. 3711. 



p. 480. Mull. Zool. Dan. i. t. ,12. f. 4. 5. 



Lin. Trails, viii. p. '2.35. 



FuU. Hutch. Dorset, t. J4. f. 11. 



Patella 



