372 GASTROPODA. [Pe.ctinibranchin. 



k. This is apparently a rare shell, and I have never seen a 

 live specimen. 



Fossil in the Miocene. 



4. Siphonalia mandarina, Duclos, 1831. Plate 43, fig. 7. 



Fusus niandarimis, Duclos, Mag. de Zool., 1831, pi. 8 ; Krauss, Siidafrik. 

 Moll., 1848, 110; Crit. List, 18; C.M.M., 8: Conch. Icon., iv, pi. 2. f. 8. 

 Nepiunea (Austrofusus) inandarinus, Duel. : Kobelt, Conch. Cab., 1880, 

 137, pi. 44, f. 2, 3. Siphonalia (Austrofusus) mandarina. Duel., Man. 

 Conch. (1), iii, 138, pi. 56, f. 384; pi. 57, f. 385. Fusus (Nepiunea} 

 mandar/nus, Duel., ('hall. Rep., xv, 200. F. zelandicus, Q. & G., Voy. 

 AstroL, ii, 1833,500, pi. 34, f. 4, 5; C.M.M., 8. Neptunaea zealandica. 

 Quoy, M.N.Z.M., 50. Fusus Rudolph! , Dunker, Novitat,, 1871, 128, 

 pi. 43, f. 3, 4. F. cinnamomeus, Reeve, Conch. Icon., f. 46 ? 

 Cominella prolongata, Sowerby, Journ. Conch., 1899, 248, pi. 5, f. 3. 

 Austrofusus mandarines, Duel. : Martens, Die beschalten Gastrop. <\. 

 deutsch. Tiefsce Exped. " Valdivia." 10. 



Shell large, fusiform, elongated, with rounded spirally grooved 

 whorls, solid, canal long. Sculpture consisting of equidistant strong 

 spiral cords, the grooves between them a little broader, with one or 

 two finer cords, and sometimes with a few fine spiral threads on the 

 lower part of the groove : some of the upper whorls are usually axiallv 

 costate, the costa- oblique, broad, and rounded. Colour reddish - 

 brown, the spirals darker ; aperture white. Epidermis horny, pro- 

 duced into sharp bristles, but apparently easily lost. Spire conical, 

 lower than the aperture with canal : outlines straight. Protoconch 

 of 2 smooth convex whorls, globose, very variable in size. Whorls 

 '. to 10. first slowly then more rapidly increasing, the spire-whorls 

 sometimes lightly shouldered, convex ; base excavated. Suture im- 

 pressed. Aperture slightly oblique, pyriform. angled above, with a 

 fairly long and open canal, curved backward, and rounded at its base. 

 Outer Up convex, thin and sharp, crenulated by the spiral sculpture, 

 and 1 irate within. Columella oblique, arcuate. Inner lip extending 

 as a thin glaze a little beyond the pillar and upon the parietal wall, 

 narrowed below and running along the inner margin of the canal. 

 Operculum rather small, oval, pointed, nucleus apical. 



Diameter, 57mm.; height, 127mm. (large specimen). Diameter. 

 48 mm. ; height, 105 mm. (specimen of 9 whorls). 



Animal unknown. 



Hob. From Auckland to Banks Peninsula ; 200 miles west of 

 Cape Farewell, in 275 fathoms ; Queen Charlotte Sound, in 10 fathoms 

 (" Challenger " Exped.). Also coast of Natal. 



Fossil in the Miocene and Pliocene. 



5. Siphonalia valedicta, Watson, 188(5. Plate 18, fig. '.. 



Fiiwitt valt'dictus, Watson, ('hall. Rep., xv, pt. 42, 201, pi. 17, f. 7. tiiphon- 

 alia niandririiia, var. valedirtn, Watson, Index, 72. A', valedicta, Wats. : 

 In-dalc. T.N./.I.. xl, 383. 



Shell strong, feebly ribbed, regularly spiralled, fusiform, attenuated, 

 with a long body-whorl, a subscalar spire, a small mamillated apex, 



