CLASS BRACHIOPODA 
Family LINGULIDiE. 
Genus GLOTTIDIA Dali, 1870. 
Shell linguiform, elongate, pedunculated; general character as in 
Lingula. Neural valve provided internally with two sharp, narrow, in¬ 
curved laminae, diverging from the beak and extending about one-third 
the length of the shell; anterior extremities of the laminae about midway 
between the mesial line and the margin. Haemal valve with a mesial 
septum of about the same length extending forward from the beak. 
Anterior adductor impressions rounded, separated by a faint mesial ridge, 
faintly impressed. Scar of the post adductor close in the cavity of the beak, 
rounded. No other evident scars. Shell smooth, perforate or imperforate. 
(Dali.) 
Type. Glottidia albida Hinds. 
Distribution. East and west coasts of North America. 
Glottidia albida Hinds, 1844. 
Plate 49, fig. 3. 
Hinds, Zool. Voy. Sulphur, Mollusca, p. 71; pi. 19, fig. 4, 1844. 
Shell elongately oval, smooth, rather flat, everywhere whitish, shining; 
valves closed throughout. (Hinds.) 
Type in Museum Cuming. Type locality, Magdalena Bay, Lower 
California. 
Range. Monterey Bay to San Diego, California, and Magdalena 
Bay, Lower California. 
Glottidia palmeri Dali, 1871- 
Amer . Jour . Conch., 7 :77. 
Shell imperforate; texture moderately solid but contracting about the 
edges in drying; very narrow and elongated, rather square in front. Beaks 
sharply acuminated, valves in the natural condition rather widely gaping. 
Hasmal valve with a small concave area, transversely striated. Exterior 
of the valve with two obscure carinae extending from the beaks to the 
anterior corners of the shell, and another, even less evident, in the medial 
line. The posterior portion of the shell creamy white, extreme edges 
lightly horny; area between the two carinae of a fine brown, stronger on 
the lines of growth and diminishing posteriorly; median carina paler. 
Surface polished, with obscure impressed lines and slight rugosities under 
the lens. 
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