TERTIARY AND QUJATERNARY PALEONTOLOGY, NORTHEASTERN FLORIDA 33

Cardium isocardia Linne. Cardiumn isocardia Linn.
Venus rileyi Conrad. Venus campechiensis Gmel.
Chione cancellata Linne. Chione cancellata Linn.
Mulinia lateralis Say. Mulinia lateralis Say.
Corbula inxqualis Say (2 vars.). Corbula inmqualis Say.

 Other species not originally reported from this station are:

Mangilia cerina Kurtz and Stimpson. Olivella mutica (Say).
Marginella, near M. bella (Conrad). Crepidula fornicata (Linne). Rochefortia planulata Stimpson. Gemma magna Dail. (?)
Mulinia contracta (Conrad).

 Geologic horizon originally reported: Pliocene.
 Geologic horizon in this report: Pliocene (Nashua marl).

 The following species are cited from DeLeon Springs with assigned age by Dr. Win. H. Dali, in the Transactions of the Wagner Free Institute of Science of Philadelphia, Vol. III:

Crepidula aculeata Gmel. 5(p. 357) ; Pliocene.
 S(p. 1597) ; Miocene.
Ilyanassa isogramma Dail, (p. 239) ; Pliocene ( ?) Littorina irrorata Say, (p. 320) ; Pliocene. Carditamera arata Conrad, (p. 1414) ;Pliocene. Carditamera arata Conrad, (p. 1597) Miocene. Chama congregata Conrad, (p. 1400) ;Miocene. Echinochama arcinella Linne, (p. 1597) ;Miocene. Echinochama arcinella Linne, (p. 1612) ;Pliocene.

5019.-One-fourth of a mile south of the railroad station at Orange
 City, Fla., basal member. (See Matson, 0. C., and Clapp, F. G.,
 Fla. Geol. Survey, 2nd Ann. Rep't, p. 149, 1909.)

 Approved or Changed. Original.
Melampus lineatus Say, var. Melampus lineatus Say.
Terebra concava (Say), not found. Terebra concava Say.
Olivella nitidula Diliwyn. Olivella mutica Say.
Oliva literata Lamarck. Oliva literata Lam.
Busycon maximum var. (yo.). Fulgur pyriformis Conrad.
Litorina irrortata (Say). Littorina irrorata Say.
Leda acuta (Conrad), var. Leda acuta Conrad.
Arca transversa Say. Arca transversa Say.

 Other species from this station not listed with the above are:

Crassinella lunulata Conrad. Venericardia tridentata Say.
Cardita arata (Conrad).
Phacoides multilineatus Tuomey and Holmes.