108 MAZATLAN BIVALVES 



154 LASEA PRTJBBA, Mont. 



Cardium rubrum, Mont. Test. Brit. p. 83, pi. 27, f. 4. (non Rve.) 

 Tellina rubra, Twrt. Conch. Diet. p. 168. 

 Kellia rubra, Twrt. DM. Brit. pp. 57, 258, pi. 11, f. 7, 8. 



Forbes $ Hani. Br. Moll. vol. ii. p. 94, pi. 36, f. 5-7 : (animal) 



pi. O, f. 3. Clark Moll. Test. Mar. Br. p. 92.--Searles Wood 



Crag Moll. pt. ii. p. 125, pi. 11, f. 10. 

 Poronia rubra, Red. Rev. Cwv. Zool. 1843, p. 175. 

 Lassea rubra, Leach, ms. Brown Til. Conch. 1827, t. 20, f. 17-19. 

 Les^ea rubra, Brown, op. cit. ed. 2, p. 93, pi. 36, f. 17, 18. 

 Petricola rubra, G-ray Ann. Phil. 1825. 

 Lasea rubra, B. M. Cat. Br. Moll. vii. p. 82. Phil. Hand. 



Conch, p. 345. 

 Bornia semilunum, Phil. Moll. Sic. vol. i. p. 14, pi. 1, f. 16, & 



vol. ii, p. 11. Krauss Sudafr. Moll. p. 2. 

 Erycina violacea, Scacchi, Cat. 6. 

 Cy eladina Adansonii, Cantr. Bull. Acad. Brux. 

 Cyclas australis, Lam. An. s. Vert. ed. Desh. vi. 270, (teste 



Gray.) 



? Amphidesma nucleola, Lam. op. cit. vi. 270. 

 Autonoe rubra, Leach, Br. Moll. 288, pi. 12, f. 5, 7. 

 [For other references, v. B. M. Cat. loc. cit]. 



Whether the little Mazatlan shells (of which only one pair 

 and a few valves were found,) are distinct from the typical 

 European species, must be left for future determination, when 

 its distribution shall have been better ascertained. The teeth 

 are smaller than in most British specimens, but it by no means 

 differs from them so much as do the Mediterranean examples. 

 The late, deeply regretted Prof. E. Forbes considered that 

 they might be identical. He gives the species from the North 

 and South Atlantic. Dunker quotes a similar shell from the 

 G-uinea coast, and Krauss the same from South Africa. I have 

 it from Java, and Singapore (among Chamse). Dr. Gould gives 

 it from Massachusetts, South of Cape Cod. Mr. Cuming found 

 a similar shell in abundance at Valparaiso, on high exposed 

 rocks, seldom washed by the sea, along with a little Littorina, 

 like L. neritea. An extremely similar species is K. miliaris, 

 Desh. from Eagle Bay, Magellan. A species closely resem- 

 bling it in shape but white, and with concentric ridges (which 

 however, being irregular, may be a local variety) is from the 

 Bay of Mexillones, Desert of Atacarnas, Bolivia, adhering to 

 Balani in exposed situations, (Cuming). Lamarck's Cyclas 

 australis is from, the Isle of Timor, with a variety from K. 



