334 APPENDIX. 
lineations on the inner margin; throat coated with bluish white enamel; pillar flattened ‘ 
white. Operculum patelliform, ivory-like, the outer convex surface marbled black and white; 
the inner surface black. 
Length one-fourth of an inch ; diameter one-fifth of an inch. 
Locality.—Found at San Diego by Mr. Blake, and also by Dr. Webb. 
This pretty little shell is usually more or less coated with cretaceous matters, but when cleaned 
exhibits a beautifully lineated surface, peculiar on account of the lines running so nearly in the 
ordinary direction of revolving strie, The coloration, however, sometimes consists of olive and 
white tessellations and blotches. It would accord pretty well with P. perforata, Philippi, did it 
not lack the distinguishing mark of that species, its perforation. 
BULLA (TORNATINA) INCULTA, Gould. 
[Preliminary Report, 1855.] 
Testa minuta, solidula, eburnea, elongato-ovalis, longitudinaliter minutissimé striata: spira 
elevata; anfractibus quatuor tabulatis: apertura linearis, octantes septem longitudinis teste 
adequans, anticé dilatata, posticé rotundata ; labro incurvato ; columellá satis arcuatá, callosa, 
uniplicatá. Pl. XI, figures 27, 28.. 
Shell minute, solid, ivory white, elongated-oval, minutely striated longitudinally ; spire ele- 
vated, consisting of about four tabulated whorls. Aperture about seven-eighths the length of 
the shell, not attaining the end of the outer whorl, linear, constricted at the middle and some- 
what dilated anteriorly, posterior angle rounded ; pillar moderately arcuate, usually pei 
a well-marked fold at the anterior fourth, and well coated with enamel. 
Length one-eighth ; breadth one-twelfth of an inch. 
Locality.—San Diego. 
May be best compared with B, fusiformis, A. Adams, and is also very closely allied to 2. 
obstricta. Gould. The spire varies much in elevation, sometimes, indeed, being on a level with 
the outer whorl. The form of the whole shell is also more or less cylindrical. 
BULLA (HAMINEA) VESICULA, Gould. 
- . [Preliminary Report, 1855.] 
Testa parva, fragilis, ovato-globosa, pallidé citrina, postice truncata: apertura spiram 
superans, longitudine duplo adequans, anticé et posticà benê rotundata; columella profunde 
arcuatá, vix callosá. Pl. XI, fig. 29. 
Shell small, fragile, ovate globose, pale greenish Ee body of the shell small, truncate at 
summit; outer whorl large; aperture about twice the length of the body of the shell, and pro- 
jecting be it, broadly rounded both posteriorly and anteriorly ; outer Jip inflexed at the 
middle; pillar profoundly arcuate, with a narrow delicate callus. 
three-tenths ; breadth one-fifth of an inch.‏ ت 
Locality.—Brought fea San Diego by Mr. Blake. 
. It has about the size and general appearance of B. rotunda, A. Adams, but has not so large 
& body, and is more open anteriorly ; in this litter respect it is more like B. Natalensis, a much 
shell. 
. CARDIUM CRUENTATUM, Gould. 
[Preliminary Report, 1855.] 
Testa parva, tenuis, transversim rotundato-ovata, ventricosa, inequilateralis, polita, straminea, 
