176 BULLINA. 



Aplustrum Schum.; B. physis and w/^w)!, belonging to Hydatina 

 Schum. ; and B. scabra, which H. & A. Adams and others have con- 

 sidered the type of the genus. 



The few species are Indo-Pacific in distribution. 



Key to Specie)^. 



a. Shell with spiral and longitudinal lines or bands of red. 



b. Spiral bands wide, B. bruguieri. 



bb. Spiral lines narrow, B. scabra. 

 aa. Shell translucent, with or without two spiral broAvn lines. 



b. Columella obliquely truncated below, B. vitrea. 



bb. Columella not truncated at base; B. deshayesii. 



B. SCABRA Gmelin. PI. 45, figs. 18-22. 



Shell ovate, obese, riraate or perforate; white or faint roseate 

 with two distant red spiral lines, and numerous arcuate or zig-zag 

 longitudinal red lines. Spire very short; whorls about four, the 

 nuclear whorl large, polished, reversed and distorted ; the following 

 whorls closely spirally grooved, the grooves formed of confluent 

 oblong punctures; interspaces flat above, becoming narrower and 

 rounded on the base. Aperture large, narrow behind ; outer lip 

 arched forward ; columella vertical, straight, showing a very slight 

 fold above, and obliquely truncated at base ; the free edge of the 

 columella recurved over the more or less open umbilical chink. 



Alt. 12, diam. 7-7 mill. (Port Stephens, N. S. Wales). 



Alt. 14, diani. 9 mill. (Nemoto, Boshiu, Japan). 



Java (Chemnitz) ; Mauritius, Polynesia (Martens) ; Port Eliza- 

 beth (Sowb.) ; Coogee Bay, Port Stephens, Middle Harbor, Lake 

 Maequarie, Port Jackson, N. S. Wales, Australia (Brazier, Angas. 

 Cox et al.) ; Hauraki Gulf, New Zealand (Hutton) ; Sandwich 

 Islands (Pse.) ; Nemoto, Boshiu, Japan (F. Stearns). 



Bulla scabra, etc., Chemnitz, Conchyl. Cab. x, p. 118, pi. 146, f. 

 1352, 1353; Gmelin, Syst. Nat. (13), p. 3434, and of Dillwyn 

 Catal., i, p. 484. Lamarck, and other authors. — Bullina scabra 

 Ad., Thes. Conch., ii, p. 563, pi. 120, f. 1. — Sowb., Conch. Icon., 

 xviii, f. 1.— Martens, Moll. Mauritius, p. 303.— Dkr., Ind. Moll. 

 Mar. Jap. p. 163. — Avlustrum scabriim Watson, Chall. Rep. Gastr., 

 p. 633. Voluta ziczac Muhlf., Ges. Naturforsch. Freunde zu 

 Berlin, Mag. fiir die neuesten Entdeck., etc., viii, 1818, p. 5, pi. 1, 

 f. 4. Conf. Mke., Mai. Bl., i, p. 40. — Tornatella ziczac Martens & 



