 | Academy of Natural Sciences of Philadelphia - 1862 - 586 Seiten
...India, (Trans. Geol. Soc. Lond. vol. vii. pi. 18, fig. 7.) Locality. Nanaimo, Vancouver Island. UACTKA GIBBSANA. — Shell transversely oval, or subtrigonal,...elevated, but small, and not projecting much above the hinge margin ; surface marked only by moderately distinct lines of growth. Posterior muscular impression... | |
 | Academy of Natural Sciences of Philadelphia - 1862 - 786 Seiten
...pi. 18, fig. 7.) Locality. Nanaimo, Vancouver Island. МАСТГЛЛ GIBBSAXA. — Shell transvers-ly oval, or subtrigonal, moderately convex, rather thin;...elevated, but small, and not projecting much above the binge margin ; surface marked only by moderately distinct lines of growth. Posterior muscular impression... | |
 | Geological and Geographical Survey of the Territories (U.S.) - 1876 - 550 Seiten
...moderately convex, rather Ain; anterior side narrowly rounded ; base forming a regular semi-elliptic curve ; posterior side slightly truncated at the immediate...outline sloping from the beaks in front and behind at au angle of about 120° ; beaks central, rather elevated, bnt small, and not projecting much above... | |
 | 1876 - 544 Seiten
...fige. 8, 8 о, and 3 6. Mactra Gibbeana, Meek (18G1), Proceed. Acad. Nat. Sei. Philad., liii, 315. Shell transversely oval, or subtrigonal, moderately...anterior side narrowly rounded ; base forming a regular semi-elliptic curve; posterior side slightly truncated at the immediate extremity, abruptly rounded... | |
 | University of California, Berkeley. Department of Geology - 1916 - 742 Seiten
...Terr., vol. 2, no. 4, p. 374, pi. 2, figs. 8, 80 and 86, 1876. Meek described this species as follows: Shell transversely oval, or subtrigonal, moderately...from the beaks in front and behind, at an angle of 120°; beaks central, rather elevated, but small, and not projecting much above the hinge margin; surface... | |
 | Kansas Academy of Science - 1908 - 934 Seiten
...II, No. 4, p. 374, pi. 2, figs. 8, 80-6, 1876. Meek's description (see Geol. & Geogr. Terr, above): "Shell transversely oval, or subtrigonal, moderately...anterior side narrowly rounded; base forming a regular semi-elliptioal curve; ppsterior side slightly truncated at the immediate extremity, abruptly rounded... | |
 | Kansas Academy of Science - 1909 - 466 Seiten
...II, No. 4, p. 374, pi. 2, figs. 8, 80-6, 1876. Meek's description (see Geol. & Geogr. Terr, above): "Shell transversely oval, or subtrigonal, moderately...connection with the base below; dorsal outline sloping from beaks in front and behind at an angle of about 120 degrees; beaks central, rather elevated) but small... | |
 | Kansas Academy of Science - 1909 - 448 Seiten
...II, No. 4, p. 374, pi. 2, figs. 8, 80-6, 1876. Meek's description (see Geol. & Geogr. Terr, above): "Shell transversely oval, or subtrigonal, moderately...connection with the base below; dorsal outline sloping from beaks in front and behind at an angle of about 120 degrees; beaks central, rather elevated, but small... | |
 | University of California (1868-1952) - 1915 - 922 Seiten
...374, pi. 2, flgs. 8, 8a and 86, 1876. Meek described this species as follows: rounded or subaugular at its connection with the base below; dorsal outline...from the beaks in front and behind, at an angle of 120"; beaks central, rather elevated, but small, and not projecting much above the hinge margin; surface... | |
 | John Campbell Merriam - 1916 - 820 Seiten
...Terr., vol. 2, no. 4, p. 374, pl. 2, flgs. 8, 80 and 86, 1876. Meek described this species as follows: Shell transversely oval, or subtrigonal, moderately...anterior side narrowly rounded; base forming a regular semielliptlcal curve; posterior side slightly truncated at the Immediate extremity, abruptly rounded... | |
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Shell transversely oval, or subtrigonal, moderately convex, rather thin; anterior side narrowly rounded ; base forming a regular semielliptical curve ; posterior side slightly truncated at the immediate extremity, abruptly rounded or subangular at its... 