CLASS GASTROPODA 
41 
Family BULL ARII DAE 
Genus BULL ARI A Rafinesque, 1815 
Shell oval or ovate, compactly involute, generally solid and with a 
mottled color-pattern; spire sunken, umbilicated. Aperture as long as the 
shell, rising slightly above the vertex; its upper portion narrow, expanded 
toward the base; lip simple, flexuous; columella short and concave, with a 
crescentic, white, reflexed callus; parietal wall smooth, with a light 
parietal callus. (Tryon and Pilsbry, Manual of Conchology.) 
Type. Bulla ampulla Lamarck. 
Distribution. Mediterranean, Atlantic, Gulf of Mexico, Indo- 
Pacific, west coast North America. 
Bullaria gouldiana Pilsbry, 1893 
Manual of Conchology , 15:340; PI. 36, figs. 22-24. 
Shell large, ovate or oval, thin; pinkish fawn-colored dappled with 
slate-black spots, each shading into the ground-color on the right and 
bordered with whitish on the left, or with similarly shaded ^-shaped or 
V-shaped markings; covered when fresh by a yellowish-brown or mahog¬ 
any epidermis. Surface smoothish, with irregular growth-wrinkles; 
showing under a strong lens an extremely minute granulation. Apex 
narrowly umbilicated, the interior of the perforation showing no spiral 
striae, or but a few in its depth. Columella thickened with crescentic 
callus. Interior of mouth showing the external markings viewed by re¬ 
flected light. Alt., 55; diam., 37 mm. (Pilsbry.) 
Type in British Museum. Type locality, Guaymas, Mexico. 
Range. Santa Barbara, California, to Mazatlan, Mexico. 
This is the shell we have called Bulla nebulosa Gould. Gould’s type is 
in the State Museum at Albany, No. 169, and his type locality is given as 
San Diego, California. 
Bullaria quoyana Dali, 1919 
Proceedings of the United States National Museum, 56:300. Manual of Conchology, 
15: PI. 37, fig. 39. 
B. testa ovata, ventricosa, sublaevigata, vertice profunde umbilicata, 
fusco alboque variegata; labro acuto, arcuato. (A. Adams.) 
Shell ovate, ventricose, rather light and thin; apex umbilicated, varie¬ 
gated with white and fuscous; outer lip acute, arcuated. (Sowerby.) 
Type in British Museum. Type locality, Galapagos Island. 
Range. Catalina Island. 
This is Bulla quoyi A. Adams, 1850, but not Gray, 1843. (Dali.) 
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