PATELLA. 1039 



both, and longitudinally striped with numerous black ele- 

 vated capillary lines, and there are sometimes one or two 

 transverse white zones near the summit. 



LEUCOPLEURA. 51. Shell conical, with broad slight- 

 ly elevated longitudinal striae, and the sum- 

 mit obtusely reflected ; base ovate. 



Patella leucopleura. Gmelin, p. 3699. 



Patella melanoleuca. Gmeliny p. 3713. 



Patella, No. 18. Schroeter Einl. ii. p. 448. 



La Punaise mouchetee. Favnnne, i. p. 487. t. 1. f. B 2. 



Lister Conch, t. 539- f. 22. Martini, i. p. 1 10. t. 7. f. 5Q 

 and 57. 

 Inhabits the coasts of the West India Islands. 

 This shell is white with brown or blackish rays, and is of the 



same size, and very nearly allied to P. mammillaris, of which 



Martini considered it to be only a Variety. 



TRiCARiNATA. 52. Shell slightly striated, with 

 three keels in front, and the summit revolute. 



Patella tricarinata. Linnaus Si/st. Nat. p. 1259. Born 



Mus. t. 18. f. 6.? Schroeter Einl. ii. p. 417. t. 5. f. 2.? 



Gmelin, p. 3710. Portland Catalogue, p. l65, lot 



3601. 

 Patella tricostata. Chemnitz, x. p. 333. 1. 168. f. 1622 and 



1623. Gmelin, p. 3698. Schreihers Conch, i. p. 354. 

 Le Petit Concho-lepas. Favaime, i. p. 545. t. 4. f . H 1.? 

 Humphreys Conch, t. 4. f. 9- 

 Inhabits the coasts of New Zealand ? Humphreys. 

 Linnaeus has not given any reference, but to the above charac- 

 ter has added the following description : " Shell white, 

 ovate, of the size of a hazel-nut, with three distinct keels on 

 the fore side, which spread out and form an angulated mar- 

 gin ; spire recurved, and placed on the hinder side." I am 

 entirely unacquainted with this shell, but the P. tricostata of 

 Chemnitz appears by the figure and description to be the 

 same species. Born's P. tricarinata has a different appear- 

 ance, and has been very strangely quoted by Gmelin for his 

 P. octoradiata, p. 3699. 



PECTINATA. 53. Shell ovate, entire, with wrinkled 

 somewhat branched striae ; summit nearly 

 central, reflected, and pointed. 



