Pecten tenuis H. C. Lea, 1843
LEA, H. C. 1843. Abstract of a paper read before the American Philosophical Society, May 29, 1843, entitled "Description of some new fossil shells from the Tertiary of Petersburg, Virginia", by Henry C. Lea. 1-12 p., Philadelphia (1843: Description of some new fossil shells from the Tertiary of Virginia, Proc. Amer. Philos. Soc., 3: 162-165;1845: Description of some new fossil shells from the Tertiary of Petersburg, VA., Printed for the autor, 1-48 p., pls. 34-37. Philadelphia; 1846: Description of some new fossil shells, from the Tertiary of Petersburg, Virginia, Trans. Amer. Philos. Soc., ser. 2, 9: 229-274, pls. 34-37). [1846: p. 246, pl. 35, fig. 33]
«P. TENUIS, PL. 35. FIG. 33.
P. testa sub-orbiculari, aequilaterali, convexa, tenui, striata; striis radiantibus, crebris, tum magnis, tum parvis; lineis concentricis, minutis, raris; natibus acuminatis, sub-elevatis; auribus magnis, inaequalibus, striatis; testa interne laevi.
Shell sub-orbicular, equilateral, convex, thin, striate; striae radiating, numerous, sometimes large, sometimes small; a few minute concentric lines; beaks acuminated, somewhat elevated, auricles large, unequal, striate; shell smooth within. Diam. .60. Length 2.26. Breadth 2.28 inches.
Remarks.— The striae are very irregular as to size, and frequently are alternate. Near the base they are much smaller; and are decussated by numerous very minute, concentric lines. On the only valve now before me, they are about one hundred in number. The shell has been quite longitudinal when young, as may be seen from the lines of growth. Three or four of the longitudinal striae are rather larger than the rest, particularly near the beaks.
This pretty shell was found at Shell Bank near Petersburg, the plantation of E. Ruffin, Esq., and sent by him to my father. It may be distinguished from P. Clintonius, Say, a species to which it is closely allied, by its unequal auricles and striae, its more longitudinal form, and acuminate beaks.» HENRY CHARLES LEA, 1846
(The original paper, 1843, only latin description) |
H. C. Lea, 1846, plate 35.
|