308 BET. E. B. WATSON ON THE 



that of Mr. Mc An drew. He was kind enough to send me 

 specimens 'of Manzoni's species, but they were too much 

 rubbed to render independent estimate possible. The 

 figures of the species in the ' Journal de Conchylioiogie ' 

 (/. c.) are not good, and as reproduced in the ' Conchy- 

 lieu-Cabinet ' (I. c.) and in Tryon's ' Manual ' (ix. 350, 

 lxv. 6) have still less character. 



272. Rissoa (Alvania) canariensis, 1839, d'Orbigny, Moll. Canar. 



p. 78, vi. 5-7 ; Watson, P. Z. S. 1873, p. 376, xxxv. 13 ; 

 Weinkauff, Conch.-Cab. 2nd ed. i. pt. 22, p. 118, iii. 

 19, 20. Hab. Mediterranean to Canaries, (L., Jn., W.) 

 Everywhere; very abundant. Semifossil in the Canic_albeds. 



273. Rissoa {Alvania) cancellata, 1778, da Costa (as Turbo), 

 Brit. Conch, p. 104, viii. 6-9 : G-wyn Jeffreys, B. C. iv. 8 ; 

 & v. 207, Ixiv. 3; Watson, P.Z. S. 1873, p. 367, xxxiv. 2. 

 Hab. Prom Gt. Britain to Mediterranean, Mogador, and 

 Canaries. (M., L., N., Jn., W.) Everywhere ; very 

 abundant. 



274. Rissoa coriacea, 1868, Manzoni, Jour, de Conch, pp. 166 & 

 242, x. 6 ; Watson, P. Z. S. 1873, p. 369, xxxvi. 27 ; Wein- 

 kauff, Conch.-Cab. 2nd ed. i. pt. 22, p. 141, xvi. 11. 

 Hab. Mediterranean. (Jn., W.) From Punchal to Punta 

 de Sao Lourenco, in 30 to 50 f ms. Not common. 



275. Rissoa (Alvania) costata, 1796, John Adams (as Turbo), 



Trans. Linn. Soc. in. 65, xiii. 13, 14: Gwyn Jeffreys, 

 B. C. iv. 22 ; & v. 207, lxviii. 2 ; Watson, P. Z. S. 1873, 

 p. 369, xxxiv. 5. Hab. From Norway to Mediterranean 

 and Canaries. (Ju., W.) Everywhere ; abundant. 



276. Rissoa (Alvania) costulata, 1844, Alder, Anu. & Mag. 



vol. Xiii. p. 324, viii. 8, 9 ; Gwyn Jeffreys, B. C. iv. 35 ; & 

 v. 208, lxviii. 1 ; Watson, P. Z. S. 1873, p. 378, xxxv. 15. 

 Hab. From Gt. Britain to Mediterranean. (L., Jn., W.) 

 Everywhere ; very abundant. 



277. Rissoa (Alvania) crispa, 1873, Watson, P. Z. S. p. 369, 

 xxxiv. 6 ; Weinkauff, Conch.-Cab. 2nd ed. i. pt. 22, p. 157, 

 xix. 9, 10. (Jn., W.) From Funcbal to Punta de Sao 

 Lourenco and Porto Santo. Abundant. 



278. Rissoa (Cingilla) cristallinula, 1868, Manzoni, Jour, de 

 Conch, p. 5, x. 2 ; Weinkauff, Conch.-Cab. 2nd ed. I. pt. 22, 

 p. 153, xviii. 13, 16. Hab. Canaries. (W.) Porto Santo. 

 Two specimens. 



