EAST COAST MARINE SHELLS 



63 



IPHIGENIA BRASILIANA Lamarck. Shell solid, 

 umbones a little closer to posterior end; 

 surface showing faint radial lines from 

 umbones; epidermis smooth, worn off in old 

 specimens; interior white or purplish, the 

 teeth frequently purple. Length 3 inches. 



This species is common in Lake 

 Worth, Florida, where it is sometimes tak- 

 en for food. It prefers inland waters but 

 subject to tidal influence. 



PI. 24, Fig. 2 



Indian River, Florida, to Brazil 



Family Sanguinolarildae 



Shell rather convex, mostly trans- 

 parent, inequilateral; often finely con- 

 centrically striated; somewhat pointed at 

 posterior end; each valve provided with 

 two erect subbifid close together teeth; 

 muscular impression with a triangular si- 

 nus. 



GENUS SJlNGUINOLARIA Lamarck 1799 



Shell of fair size, usually in- 

 clined toward rose or red color. 



SANGUINOLARIA SANGDINOLENTA Gmelin. Shell 

 rather solid, inequilateral, convex; de- 

 cussately striated; whitish, tinged with 

 rose adjacent to umbones; hinge external 

 and prominent. Length 2.75 inches. Some 

 specimens are uniformly rose colored. 



PI. 25, Fig. 13 



Southern Florida and the West 



Indies 



GENUS GARI Schumacher 1817; 

 Psammobia Lamarck 1818 



GARI VAGINOIDES Reeve. Shell oblong, rath- 

 er convex, ends rounded; finely decussate- 

 ly striated; dull 

 white with touch- 

 es of pinkish yel- 

 low near umbones; 

 straw-colored epi- 

 dermis near mar- 

 gin. Length 32 ram. 

 Fig. 35 

 Charlotte 

 Harbor, 

 Florida 



Fig. 35 



Gari vaginoides 



32 nun. 



GENUS HETERODONAX Morch 1853 



Shell oval in shape, rather flat, 

 thin, with fine concentric lines. 



HETERODONAX BIMACULATUS Linn§. A spotted 

 shell, diverse in coloring, white and pur- 

 ple being the most usual pattern. Length 

 18 mm. 



PI. 25, Fig. 9 



Fernandlna, Florida to West Indies; 



Pacific 



GENUS ASAPHIS Modeer 1793; 

 Corbula Roeding 1798 



Shell transverse, subequilateral; 

 umbones rather prominent; hinge with two 

 cardinal teeth in each valve, anterior In 

 left valve and posterior in right valve 

 bifid; ligament heavy. 



ASAPHIS DEFLORATA Linne. (A. coccinea 

 Llartyn) . Shell somewhat inflated; surface 

 covered with numerous wavy ribs which are 

 most apparent on posterior slope, the ribs 

 cancellated at both ends by crossing of 

 growth lines, sometimes inclined to be 

 scaly at rear of shell; pallial sinus large 

 and rounded. Color varying from white 

 through various shades of yellow, orange, 

 red, violet; portions of interior deep 

 violet. 



This very striking and beautiful 

 shell is abundant in the Bahamas and else- 

 where in the Vifest Indies. It is rare in 

 Florida but has been taken near Miami. 

 Length 3 inches but usually less. 



PI. 25, Fig. 12 



Miami, Florida, to the West Indies 



GENUS TAGELUS Gray 1847 



Shell elongated, equivalve, margins 

 nearly parallel, ends abruptly rounded; 

 hinge with two to three cardinal teeth in 

 each valve; ligament prominent. 



TAGELUS DIVISUS Spengler. Shell oblong, 

 with reddish stripe from umbones passing 

 slightly backward and indicating presence 

 of obsolete rib inside; epidermis yellow- 

 ish; interior smooth and shining, thickened 

 by age. Length 1.5 inches. 



PI. 25, Fig. 17 



Cape Cod, Massachusetts to Florida 



and Texas 



