SANGUINOLARllDAE 441 



obscure) running across the center of the valve just anterior to the 2 small, 

 projecting cardinal teeth. Color of shell whitish purple, covered externally 

 with a very thin, chestnut-brown, glossy periostracum. A common shallow- 

 water species. 



Tagehis subteres Conrad Purplish Pacific Tagelus 



Plate 29s 



Santa Barbara, California, to Lower California. 



I to 2 inches in length, subcylindrical, slightly arcuate with the dorsal 

 margins sloping down from the beaks. Color pale purple inside and out. 

 Periostracum yellowish brown and finely wrinkled. Moderately common in 

 shallow water in sandy mud. 



Tagehis politiis Carpenter from Central America does not slope down 

 from the beaks so strongly, is a thinner shell and much more darkly colored 

 with violet. 



Genus Meter odonax Morch 1853 



Shell less than i inch in length, resembling a strong, oval Tellina. Two 

 cardinals and two lateral teeth in each valve, the laterals usually not very 

 distinct. Pallial sinus extends % the length of the shell. 



Heterodonax bimaculatus Linne Small False Donax 



Plate 3oh 



South half of Florida and the West Indies. Southern Cahfornia to 

 Panama. 



% to I inch in length, oval, with a truncate anterior end and moderately 

 inflated. Exterior smoothish, with numerous fine growth lines. 2 cardinals 

 in each valve. Anterior to the beaks (which point forward), the hinge is 

 thick for a short distance, then followed by a thinner, concave portion. Color 

 variable: white with 2 oblong crimson spots inside; violet with radial streaks; 

 pink, yellow or mauve; some are speckled with black or brown. This is a 

 common species found with Donax on the slopes of sandy beaches. H. pa- 

 cificiis Conrad is a synonym. 



Genus Gari Schumacher 18 17 



Shell fairly large, elongate-oval, beaks near the center; hinge thick and 

 with 2 small, bifid teeth just under the beak. Alias Psainmobia Lam. 18 18. 



Subgenus Fsamvtocola Blainville 1824 

 Gari calif ornica Conrad Californian Sunset Clam 



Plate 2911 



Aleutians to off San Diego, California. Japan. 



