Bulletins of American paleontology . (Fig. 218.) Shell thick, medium size,slightly ventricose, furnishedupon the outside by aboutt wenty-ii ve sharp lamelliformconcentric and recurved ribs,crennlated npon the iimbonalside ; ribbed or ridged trans-versely on the ventral side,the ridges extending acrossto the adjacent rib; lunnlecrennlated. Recent npon the coast of North-Carolina. LATILIKATA -VENUS TArniA. LAM. (Fig. 210.) Shell snb-trigonal, thick and pon-derous for its size ; ribs line, con-centric, and very thick; irregularlystiratc, crennlate npon the lowermargin ; umbo slightly ilatte
Bulletins of American paleontology . (Fig. 218.) Shell thick, medium size,slightly ventricose, furnishedupon the outside by aboutt wenty-ii ve sharp lamelliformconcentric and recurved ribs,crennlated npon the iimbonalside ; ribbed or ridged trans-versely on the ventral side,the ridges extending acrossto the adjacent rib; lunnlecrennlated. Recent npon the coast of North-Carolina. LATILIKATA -VENUS TArniA. LAM. (Fig. 210.) Shell snb-trigonal, thick and pon-derous for its size ; ribs line, con-centric, and very thick; irregularlystiratc, crennlate npon the lowermargin ; umbo slightly ilattencd. This shell is readily known by itsthick ribs, and deep subci betweenthem. Common in the miocene ofNorth-Carolina. Fig. 220.
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Keywords: ., bookcentury1800, bookdecade1890, bookidbulletinsofa, bookyear1895
