Pulg tint ria.] GASTROPODA. 445 



The subgenus is distributed over the coasts of New Zealand, Tas- 

 mania, Australia, New Caledonia, South America, Japan, and East 

 Africa. 



Fossil in the Tertiary. 



KEY TO SPECIES. 



A. Height of spire about half that of the aperture. 



a. Last whorl \vith 7 to 10 prominent nodules on the angle of the 



shoulder . . . . . . . . . . . . arabica. 



aa. Whorls scarcely shouldered, nodules obsolete . . . . elongata. 



B. Height of spire about one-third that of the aperture ; whorls 



shouldered, last whorl with 8 to 10 nodules ; columella with 



5 to 7 plaits . . . . . . . . . . . . depressa. 



C. Height of spire about two-thirds that of the aperture. 



a. Whorls axially lightly costate, with 10 small nodules on the last 

 whorl, which is lightly shouldered or convex ; angle of 

 spire, 36^40 . . . . . . . . . . gracilis. 



aa. Whorls with 10 distinct axial ribs, absent on the greater part 

 of the body-whorl, which is distinctly shouldered ; angle 

 of spire, 32 . . . . . . . . . . Hedleyi. 



aaa. Whorls with light axial ribs, no nodules on the convex body- 

 whorl ; angle of spire, 42 . . . . . . . . hitea. 



1. Fulguraria arabica, Marty n, 1784. Plate 48, tig. 5. 



Buccinum. arabicum, Mart., Un. Conch., ii, f. 52. Valuta arabica, Gmelin, 

 Syst. Nat., ed. xiii, 1790, 3461 ; Dieff. N.Z. 235. 8caplidla arabica, 

 Mart, : Hedley, Colon. Mus. Bull., No. 1, 1906, 49. Valuta pacifica, 

 Chemnitz, Conch. Cab., xi, 1795, 1713-14 ; Voy. Astrol., ii, 1832, 625, 

 pi. 44, f. 6 ; Conch. Icon., vi, Voluta, pi. 17. f. 38 ; Chenu. Man. de 

 Conch., i, 191, f. 971; Button, C.M.M., 18; M.N.Z.M., 61; T.N.Z.I., 

 xvi, 225 ; Sowerby, Thes. Conch., i, pi. 48, f. 26 ; Hombr. & Jacq., 

 Voy. P.S., v, 72, pi. 19, f. 7; Tryon, Man. Conch. (1), iv, 94, pi. 28, 

 f. 97. Cymbiola pacifica, Swainson, Exot. Conch., ed. Hanlev, 1841, 

 18, pi. 14, 43. Scapha pacifica, Gray, P.Z.S., 1855, 58. Scaphella 

 pacifica, Lam. : Harris, C. Tert. M.B.M., i, 113 ; Index, 74. 



Shell large, elongate, fusiform, solid, fulvous with dark zigzag 

 markings, the upper whorls costate. the lower two or three with a 

 row of nodules. Sculpture : The protoconch is smooth, the following 3 

 are axially costate, the costa? are slightly oblique, equidistant, rounded, 

 very low above the periphery of the whorls, the last two or three whorls 

 with a more or less distinct row of tubercles on the keel of the shoulder, 

 7 to 10 in number ; they are either high and sharply rounded, laterally 

 compressed, or only low rounded nodules ; occasionally the lower 

 whorls are quite smooth. Colour yellowish- white or fulvous, with dark- 

 brown or blackish, angular, flexuous, anastomosing, transverse mark- 

 ings, which, being thicker and darker in certain places, form 3 or 4 

 more or less distinct spiral bands on the body-whorl ; sometimes 

 entirely covered with a dark reddish-brown coating. Spire high, 

 more or less turreted, conic, its height about equal to half the height 

 of the aperture. Protoconch moderately large, of 2 bulbose smooth 

 whorls, the nucleus somewhat lateral. Whorls about 7, first slowly 

 then rapidly increasing, the lower ones more or less prominently 



