Pars 15 
Jeffersonius. — Madisonius. 
217 
Jeffersonius Say. 
1824 Pecten Jeffersonius Say, Journ. Acad. Nat. Sci. Philadelphia, 
IV, 1 st. ser., p. 133, T. IX, fig. 1. 
Pecten Jeffersonius Conrad, Fossils oft the medial Tertiary, 
p. 46, T. XXII, fig. 1. 
1858 Pecten Jeffersonius Ernmons, Rept. N. Car. Geol. Survey, p. 282, 
fig. 199. 
1863 Pecten Jeffersonius Conrad, Proc. Acad. Nat. Sci. Philadelphia, 
Vol. XIV, p. 581. 
1864 Pecten Jeffersonius Meek, Miocene Check List. Smith. Misc. 
Coli. (183), p. 4. 
1898 Pecten (Lyropecten) Jeffersonius Dall, (308) p. 722. 
1904 Pecten (Chlamys) Jeffersonius Sektion Lyropecten Glenn, ( 263 ) 
p. 378., 379, T. XXXVI, fig. 2. 
Miocan. Nordamerika. 
Jeffersonius Say var. edgecombensis Conrad. 
1862 Pecten edgecombensis Conrad, Proc. Acad. Nat. Sci. Phila- 
delphia, Vol. XIV, p. 291. 
1863 Pecten edgecombensis Conrad, ibid., p. 581. 
1875 Liropecten carolinensis Conrad, in Kerr, Geol. N. Car. App., 
p. 18 (from type). 
1898 Pecten Jeffersonius var. edgecombensis Dall, (308) p. 722, 723. 
1904 Pecten (Chlamys) Jeffersonius var. edgecombensis Sektion Lyro- 
pecten Glenn, (253) p. 379, T. XXXVI, fig. 3. 
Miocan. Nordamerika. 
Jeffersonius Say var. septenarius Say. 
1824 Pecten septenarius Say, Journ. Acad. Nat. Sci. Philadelphia, 
IV, 1 st. ser., p. 136, T. IX, fig. 3. 
1840 Pecten septemnarius Conrad, Fossils of the medial Tertiary, 
p. 47, T. XXII, fig. 2. 
1856 Pecten septenarius Tuomey and Holmes, Pleiocene of South 
Carolina, p. 31, T. XIII, fig. 1 — 4. 
1863 Pecten septenarius Conrad, Proc. Acad. Nat. Sci. Philadelphia, 
Vol. XIV, p. 581. 
1864 Pecten septenarius Meek, Miocene Check List, Smith. Misc. 
Coli. (183), p. 4. 
1898 Pecten Jeffersonius var. septenarius Dall, (308) p. 722. 
1904 Pecten (Chlamy) Jeffersonius var. septenarius Sektion Lyro- 
pecten Glenn, (253) p. 379, 380, T. XXXVI, fig. 4. 
Miocan. Nordamerika. 
Madisonius Say. 
1824 Pecten Madisonius Say, Journ. Acad. Nat. Sci. Phalidelphia, 
IV, 1 st. ser., p. 134. 
1840 Pecten Madisonius Conrad, Fossils of the medial Tertiary, 
p. 48, T. XXIV, fig. 1. 
1858 Pecten Madisonius Ernmons, Rept. N. Car. Geol. Survey, p. 282, 
fig. 200. 
1863 Pecten Madisonius Conrad. Proc. Acad. Nat. Sci. Philadelphia, 
Vol. XIV, p. 581. 
1864 Pecten Madisonius Meek, Miocene Check List. Smith. Misc. 
Coli., (183) p. 4. 
Fossiliu» Catalog. I. 15. ^ 
