CLASS GASTROPODA 
175 
pearly within; columella short, arcuate, strongly bidentate near the base; 
place of the umbilicus marked by a pit. Alt., 28-40; diam., 26-34 mm. 
(Tryon and Pilsbry, Manual of Conchology .) 
Type in British Museum? Type locality ? 
Range. San Francisco Bay to Gulf of California. Fossil: Pleistocene, 
San Pedro and San Diego, California. 
Tegula gallina umbilicata Dali, 1919 
Proceedings of the United States National Museum, 56:359. 
Most of the specimens of Chlorostoma gallina are imperforate, some 
have the umbilical callus concave, forming a sort of pit, and a rare variety 
has an entirely open, narrow, deep umbilicus. The types of the latter are 
United States National Museum No. 152998, and while in other characters 
similar, are smaller than the average adult, measuring height 22 and 
diameter 25 mm. (Dali.) 
Type in United States National Museum, No. 152998. Type locality, 
San Quentin Bay, Lower California. 
Range. San Diego, California, to San Quentin Bay, Lower California. 
Tegula gallina tincta (Hemphill) Pilsbry, 1893 
Tryon and Pilsbry, Manual of Conchology, 11:169. 
In this form the longitudinal markings and sculpture are obsolete and 
the spiral grooves generally scarcely visible above; the color is yellow- 
greenish or blackish, the apex eroded, yellow; and there is a streak of 
yellow on the base just below the columellar teeth. 
Type in Hemphill Collection. Type locality not known. 
Range. Halfmoon Bay, California, to San Diego and Socorro Island. 
Described as Trochus (Monodonta) gallina var. tincta. 
Tegula gallina multifilosa Stearns, 1893 
Plate 98, figs. 3, 6 
Nautilus 6:86 and Proceedings of the United States National Museum, 16:351; PI. 50, 
figs. 8, 9. 
Shell imperforate, large, solid, turbinate, globosely conical, elevated; 
whorls five and a half to six and a half, rounded; suture simple not chan¬ 
neled ; apex obtusely pointed, eroded and yellowish; color nearly black; 
sculpture consisting of numerous, spiral or revolving, closely set, narrow, 
rounded ridges or costae, alternating with fine, incised, whitish lines or 
grooves. Aperture rounded oblique, interior pearly, outer edge rimmed 
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