168 
MARINE SHELLS OF WEST COAST OF NORTH AMERICA 
anterior adductor scar; pallial sinus reaching the ray, confluent below. 
Length, 16; height, 9; diameter, 3.5 mm. (Dali.) 
Type in U. S. N. M., No. 42865a. Type locality, Guadaloupe Island, 
off Lower California. 
Range. Lituya Bay, Alaska, to the Gulf of California. 
Subgenus Peronidia Dali, 1900. 
Tellina bodegensis Hinds, 1844. 
Plate 44, fig. 5. 
Voyage of Sulphur, Zool., 2:67; pi. 21, fig. 2. 
Shell of medium size, elongated, narrow-ovate, rather thick; umbones 
posterior to the center and pointing posteriorly; anterior portion of the 
shell evenly rounded, the dorsal and ventral lines being nearly parallel; 
posterior dorsal margin depressed back of umbo, running off quite 
obliquely to a line which truncates the posterior end near the base; basal 
posterior angle nearly a right angle; basal line nearly straight; a prominent 
bifid cardinal tooth on each valve; pallial sinus long and narrow; generally 
thickened anteriorly. (Hinds.) 
Long. 48; alt. 25; diam. 12. umbo to anterior extremity 27; to pos¬ 
terior extremity 21 mm. (Arnold.) 
Type locality, “Russian Bodegas.” 
Range. Queen Charlotte Islands, British Columbia, to the Gulf of 
California. In the Miocene in Oregon and at Walnut Creek, Contra Costa 
County, California; in the Pleistocene at San Pedro and San Diego. 
Tellina santarosae Dali, 1900. 
Proc. U. S. N. M., 23:321; pi. 3, fig. 6; pi. 4, figs. 1, 2. 
Shell white, frequently with pale brownish concentric zonulation, and 
subtranslucent radial venulations; valves rather thin, compressed, hardly 
flexuous behind; beaks low, and nearly central; surface polished, concen¬ 
trically evenly grooved with wider flat interspaces especially on the anterior 
half of disk; on the posterior fourth of the right valve the interspaces are 
narrower and elevated showing a tendency to become lamellose; if an 
imaginary line be drawn from the beak to the basal margin, in front of 
that line in the adult the concentric sculpture seems to fall suddenly, 
leaving an obscurely triangular area almost without sculpture; on the left 
valve the sculpture is not interrupted but appears feebler over the whole 
disk than in the right valve; hinge with the laterals obsolete, posterior 
radial callus not differentiated into a ray, pallial sinus low, short, mostly 
coalescent below. Length, 51.5; height, 24.5; diameter, 6 mm. (Dali.) 
Type in U. S. N. M., No. 60212. Type locality, Santa Rosa Island, 
California. 
Range. Santa Barbara Islands to San Diego, California. 
