304 EEV. E. B. WATSON OK THE 



This species is poorly represented by two small rather 

 damaged shells and a somewhat broken but well- grown 

 specimen whose dorsal margin-line is straighter than 

 usual, and in that respect resembles P. brevifrons, Phil., 

 which, however (/. Monterosato), cannot reckon as a 

 species. 



245. Pleurotoma {Mangelid) anceps, 1830, Eichwald, ISTaturhist. 



Skiz. Lithauen &c. p. 225 : Grwyn Jeffreys, B. C. (as 

 Defrancia teres) iv. 362, & v. 219, Ixxxviii. 5. Hob. From 

 Lofotens to Mediterranean and Canaries. (M., Jn., W.) 

 Funchal, Punta de Sao Lourengo, 30 to 40 fms. Kot 

 common. 



246. Pleurotoma {Mangelia) gracilis, 1803, Montagu (as Murex), 



Test. Brit. p. 267, xv. 5 ; Gwyn Jeffreys, B. C. it. 363, 

 Y. 219, Ixxxviii. 6. Sah. Grt. Britain to Mediterranean and 

 Canaries. (M., L., N., Jn., W.) Prom Magdalena to Punta 

 de Sao Lourengo. Common. 



247. Pleurotoma {Glatlmrella) Mstrix, 1832, Cristofori & Jan, 



Catalogus Conch. Poss. p. 10 ; Gwyn Jeffreys, Ann. & Mag. 

 Nat. Hist. ser. 4, ti. 82 ; Brugnone, Pleur. Poss. Paler m. 

 p. 28, i. 21 ; Bellardi, Moll. Terz. Piemonte, vol. ii. 266 ; 

 Monterosato, Enumeratio, p. 46. Hah. Mediterranean. 

 (Jn., W.) Punchal, Punta de Sao Lourengo. Very abundant. 



248. Pleurotoma {Mangelia) incrassata^ 1837, Dujardin, Mem. 

 Tour. p. 292, xx. 28 ; Philippi, Enumeratio, ii. 168, xxvi. 6. 

 ILah. Mediterranean. (Jn., W.) Punchal, Punta de Sao 

 Lourengo. !Rare. 



249. Pleurotoma ( Glathurella) Leufroyi,l%2'^, Michaud,Bull. Soc. 

 Linn. Bord. ii. 121, i. 5, 6 ; Gwyn Jeffreys, B. C. iv. 366 ; 

 & Y. 219, Ixsxix. 1. Hah. Prom Norway to Mediterranean 

 and Canaries. (Jn., W.) Punchal, Punta de Sao Lourengo, 

 Porto Santo. Yery abundant. 



250. Pleurotoma {Glathurella) linearis, 1803, Montagu (as 

 Murecc), Test. Brit. i. 261, ix. 4 : Gwyn Jeffreys, B. C. iv. 

 368, vii. 1 ; & T. 220, Ixxxix. 2. Hah. Prom Iceland and 

 Northern Norway to Mediterranean and the Canaries, 

 (M., L., "W.) Prom Punchal to Punta de Sao Lourengo and 

 Porto Santo. Very abundant. 



251. Pleurotoma {Mangelia) nehula, 1803, Montagu (as Murex), 

 Test. Brit. p. 267, xv. 6 : Jeffreys, B. C. it. 384 ; & v. 220, 

 xci. 1. Hah. Prom North Norway to Mediterranean and 



