MARIlSrE MOLLTJSCA OF MADEIBA. 327 



Gwyn Jeffreys, B. C. ii. 332 : & v. 184, xsxviii. 3. Sah. 

 From South England and Ireland to Mediterranean. 

 ' (M., L., N., Jn., "W.) Everywhere ; very abundant. 



375. Venus effossa, 1836, Bivona in Philippi's Enumeratio, i. 43, 

 iii. 20 ; Pfeiffer, Conch.-Cab. 2nd ed. xi. 197, xxxii. 1-4 ; 

 "Weinkauff, Conch.. Mittelm. i. 115. Hah. Mediterranean 

 and St, Helena. (L., Jn., "W.) Magdalena, Punta de Sao 

 Lourenco, Porto Santo. Not rare, but very local. 



376. Venus fasciata, 17'78, da Costa (as Pectunculus), Brit. Conch, 

 p. 188, xiii. 3 : Gwyn Jeffreys, B. C. ii. 334, vi. 5 ; & y. 184, 

 xxxviii. 4. Hah. Prom the JN'orth Cape, Norway, to the 

 ^gean, and existing since the later Tertiary period. (IST.) 

 Por its right of citizenship in Madeira, see Watson, Journ. 

 of Conch. 1890, pp. 374 & 376. 



377. Venus {Cythreea) rudis, 1791, Poll, Test. Sicil. ii. 94. 15, 

 16 ; Philippi (as Cytlierea venetiand), Enum. i. 40, iv. 8 ; 

 &II. 32. Hah, Prom Bay of Biscay and Mediterranean to 

 Black Sea, Canaries, and St. Helena. (L., Jn., W.) Every- 

 where ; very abundant. 



378. Venus verrucosa, 1767, Linne, Syst. Nat. p. 1180 : Gwyn 

 Jeffreys, B. C. ii. 339 ; & y. 186, xxxviii. 6. Hah. Prom 

 Scotland to the Mediterranean, the Cape o£ Good Hope, 

 and the Indian Ocean. Extant since the later Tertiary 

 period. (M., L., Jn., W.) Gorgulho to Punta de Sao Lou- 

 renco, and Porto Santo. Abundant. 



379. Vermetus gigas, 1832, Bivona, Effem. Scient. & Lett. p. 5, 

 ii. 1, 2 ; Philippi, Enumeratio, i. 170, ix. 18 a & h ; Mon- 

 terosato, Monog. Vermet. Medit. p. 30, iii. 1-3. Hah. 

 Mediterranean. (L., Jn., W.) Madeira. 



380. Vermetus rugulosus, 1878, Monterosato, Enumeraz. & 

 Synon. p. 29 ; id. Monogr. Vermet. Medit. p. 22, pi. i. 8. 

 Hah. Mediterranean. (Jn., W.) Madeira. 



381. Vermetus triqxieter, 1832, Bivona, Effem. Scient. & Lett. 

 p. 6 ; Philippi, Enumeratio, i. 170, is. 21 ; Monterosato, 

 Yermet. Medit. p. 26, ii. 4-9. Hah. Mediterranean. (L., 

 Jn., W.) Madeira. 



WeinTcauffia, see Scaphander. 



382. Xylophaga dorsalis, 1819, Turton (as Pholas, but in 1822 



amended to XylopTiaga), Conch. Die. p. 185 : Gwyn Jeffreys, 

 Brit. Conch, in. 120, iv. 3 ; & v. 193, liii. 4. Hah. Prom 

 North Norway to Mediterranean. (W.) Punchai, Cruz 

 Point, Punta de Sao Lourengo. Abundant. 



