BULLA. 345 



B. trifasciata SOWB., Conch. Icon., f. 1, March, 1868. BRAZIER, 

 P. L. S. N. S. W. ii, p. 83. 



Menke attempted to separate from B. ampulla certain forms 

 under the name B. columellaris (Mai. Bl. 1854, p. 26) ; these 

 shells, he claims, are mostly smaller than ampulla, thinner, more 

 translucent, with narrower apical perforation ; the upper process 

 of the lip is broadly rounded " like the wings of a brooding hen ; " 

 the columella is flattened, and has a low projection. In the suite 

 before me I am unable to make the separation he indicates, as the 

 characters seem to be too variable, and those he mentions are not 

 always correlated with each other. 



B. CRUENTATA A. Adams. PI. 34, figs. 6, 7. 



Shell ovately-globose, inflated, solid, opaque ; variegated with 

 blood-red spots, punctated with white ; white within. (Ad.). Shell 

 ovate-subpyriform, narrowed above the center, solid, smooth, red, 

 variegated with large red-brown patches and blackish spots ; aper- 

 ture large, pale reddish, expanded at the lower part; outer lip rose 

 colored, raised above the apex, rounded ; inner lip white, thickened ; 

 columella thick, broad, arched ; apical umbilicus rather wide. 

 (Sowb). 



Reunion (Desh.) ; Moluccas (Cum ing). 



B. cruentata Ad., Thes. p. 577, pi. 126, f. 75. SOWB., Conch. 

 Icon., f. 2. Probably Bulla rubicunda SCHROETER, Archiv fur 

 .Zoologie u. Zootomie (Wiedemann's) iv, pt. 1, p. 18 (Con/. Mai. 

 Bl. i, p. 43, and Meeresfauna Maurit., etc., p. 303). 



Besides the difference in general coloring and the rose bordering 

 of the outer lip, there is a difference in shape between this species 

 and Bulla ampulla, the former being more compressed above the 

 center. (Sowb.). 



B. ADAMSI Menke. PI. 35, figs. 15, 16, 19, 20. 



Shell oval-cylindric, solid, closely marbled with reddish on a pale 

 ground, much as in B. ampulla ; generally having three or four 

 bands of darker mottling. Vertex umbilicated, the umbilicus not 

 spirally striated within in adults. Outer lip nearly straight in 

 the middle ; columella and parietal wall strongly calloused. Alt. 

 45, diam. 30 mill. 



Tahiti (Cuming) ; Tonga (Phila. Acad. Coll.) ; Islands in Torres 

 .Straits and off N. E. Australia (Brazier). 



