GIBBULA. 



217 



G. A-NTIPODA Hombron et Jacquinot. PI. 83, figs. 102-104. 



Shell small, composed of three whorls, the two first very small, 

 the third very large ; color iridescent above and below, with green 

 transverse bands on the superior portion ; aperture large, round, 

 acute on the left, and with a flat border on the right margin ; 

 umbilicus only indicated and nearly covered by the right lip. 



Alt. 8, diam. 8 mill. (Hombr. et Jacq.) 



Auckland Is. 



Margarita antipoda Home. et. Jacq., Voy. au Pole Sad, ZooL, v, 

 p. 58, t. 14, f. 26-28 (1854).— Hutton, Proc. Linn. Soc. N. S. Wales, 

 ix, 1884, p. 363. 



Nothing is known of this species except th'e original description 

 translated above, and the original figures. 



G. NiTiDA Adams et Angas. PI. 37, figs. 25, 26, 27. 



Shell narrowly umbilicate, conical, rather thin, shining, olive- 

 yellow, marked with numerous continuous capillary white spirallines, 

 and longitudinal olive-colored flames, generally broken into oblong 

 quadrangular tessellations on the spaces betw^een the white lines, 

 frequently red instead of olive below the sutures and on the base ; 

 spire elevated, with convex outlines ; apex acute ; last whorl obtusely 

 angular around the periphery ; base lighter than upper surface, with 

 7 or 8 delicate concentric lirje; aperture rounded-quadrate, outer 

 lip very finely crenulated, within brilliantly iridescent; columella 

 arcuate; umbilicus funnel-shaped, yellowish or olive-tinted within. 



Alt. 6V, diam. 5 J mill. 



Hokianga, Auckland to Wellington, X. Zealand. 



Gibhula nitida Ad. et Ang., P. Z. S. 1864, p. 36. — Hutton, Proc. 

 Linn. Soc. N. S. Wales, 1884, p. 364. — Chrysostoma inconspicua 

 Hutton, Cat. Mar. Moll. N. Z., 1873, p. 36. 



Coloration peculiar in the w'hite spiral striie of the upper surface, 

 combined with longitudinal flames. The base has delicate separated 

 concentric stride; the interior is brilliantly iridescent, like an 

 Elenchus. 



G. STOLiczKANA G. et H. Nevill. PI. 62, figs. 76, 77. 



Shell small, umbilicate, conical, elevated, rather solid, reddish- 

 brown or olive-brown, flammulate above with white, the base tes- 

 sellated brown and white ; spire elevated ; whorls about 5, slightly 

 convex, lusterless, spirally lirate, the lirie about 9 on the penultimate 



