. Annals of the Lyceum of Natural History of New-York. Science. 216 Notes on Species of Corbiculadce. sequaliter declivi; umbonibus prominentibus, violaceo-lividis, vel roseis, Fig 43 violaceo subradiatis; valvis intus superne rubescentibus, ad margines violaceis; cardine incrassato; epidermide fuscescente, nitente vestita ; striis regularibus, reraotis ; lunula ovato-lanceolata. Long. 17; lat. 17; diam. 11 C. triangularis. Hal.— ? Collect. Cuming et Prime. The shell is triangular, not much inflated, equilateral, and solid. The beaks are prominent. The striae are regular, dis- tant, and
. Annals of the Lyceum of Natural History of New-York. Science. 216 Notes on Species of Corbiculadce. sequaliter declivi; umbonibus prominentibus, violaceo-lividis, vel roseis, Fig 43 violaceo subradiatis; valvis intus superne rubescentibus, ad margines violaceis; cardine incrassato; epidermide fuscescente, nitente vestita ; striis regularibus, reraotis ; lunula ovato-lanceolata. Long. 17; lat. 17; diam. 11 C. triangularis. Hal.— ? Collect. Cuming et Prime. The shell is triangular, not much inflated, equilateral, and solid. The beaks are prominent. The striae are regular, dis- tant, and raised. The epidermis is of a darkish-brown color and polished. The interior of the valves is of a pinkish-red merging into violet towards the margins. The hinge is strong and broad. The lunula is oval, but not distinct in color from the rest of the shell. Comparing this species with Corb. Lydigiana, we find it to be less inflated, more equilateral, more conical, and transversely less broad, the beaks are also less inflated, and the color of the interior of the valves is different. 34. Corbicula crassula, Mousson. Corbicula (Cyrena) crassula, Mousson. Bellardi Cat. 54, f. 12. 1854. Prime Cat. 3. 1863. C. testa trigona, inflata, cordiformi, subinaequilaterali; latere antico Fig. 44. rotundato, postico subobtuso; valvis solidis, intus viola- ceis, ad margines saturatioribus ; umbonibus prominen- tibus, incurvis, oppositis; irregulariter et dense striata; epidermide fuscescente vestita; lunula ovata; cardine Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Lyceum of Natural History (New York, N. Y. ). New-York :
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