THE MOLLUSCAN FAUNA OF THE ALUM BLUFF GROUP OF FLORIDA By JULIA GARDNER PART VIII. CTENOBRANCHIA (Remainder), ASPIDOBRANCHIA, and SCAPHOPODA INTRODUCTION The present chapter continues and completes the study of the faunas of the Alum Bluff group in Florida and Georgia. In 1944 the systematic collections of recent shells in the United States National Museum were rearranged, in order to bring them into line with the results of the later investigations, in large part anatomical. For purposes of convenience, if for nothing more, the general classification of the Tertiary faunas should follow the same pattern as that of the Recent faunas. Most of the changes involved are in the groups formerly under the abandoned suborder Taenioglossa, and in the two presumably degenerate groups, Gymnoglossa, which includes the Pyramidellidae and Melanellidae, and Ptenoglossa, which includes the large and important family Epitoniidae. In the older classifications, the Gymnoglossa and the Ptenoglossa were given rank coordinate with the Taenioglossa and placed either before or after the Taenioglossa. In the current classification, the Gymnoglossa and the Ptenoglossa are treated as superfamilies and introduced between the Amaltheacea and the Cerithiacea. LIST OF LOCALITIES The following list shows the localities cited by number in the text and tables (see also map in Part I, p. 2) : 2211. Lower bed, Alum Bluff, east bank Apalachicola River, 2 or 3 miles north of Bristol, Liberty County, Fla. 2212. Tenmile Creek, 1 mile west of Baileys Ferry, Chipola River, Calhoun County, Fla.1 2213. 1 mile below Baileys Ferry, Chipola River, Calhoun County, Fla.2 2214. Tenmile Creek, 1 mile west of Baileys Ferry, Chipola River, Calhoun County, Fla.1 2238. Flournoy's millrace, 2 miles east of Argyle, Walton County, Fla.3 2302. 2 miles west of Tallahassee, Leon County, Fla. 2564. McClelland farm, 1 mile below Baileys Ferry, Chipola River, Calhoun County. Fla.2 2566. Upper bed, Rock Bluff, SW4 sec. 17, T. 2 N., R. 7 W., east bank Apalachicola River, Liberty County, Fla. 2615. Log landing, farm of Dr. K. T. McClellan (1895), Shoal River, 5 miles west of Mossyhead, Walton County, Fla. 2645. 1 mile above a log landing on farm of Dr. K. Т. МсClellan, Shoal River, 5 miles west of Mossyhead, Walton County, Fla. 2646. Oak Grove, Yellow River, Okaloosa County, Fla. 2652. Horse Creek, one-half mile above mouth, 11⁄2 miles south of Oak Grove, Okaloosa County, Fla. Probably at or near the crossing of State Highway 84, 4.7 miles north of Clarksville, on the line between secs. 11 and 12, T. 1 N., R. 10 W. * Type locality of the Chipola formation, SW4SW4 sec. 8, Τ. 1 Ν., R. 9 W., 24 miles east of Carr; west bank of Chipola River. NE4 sec. 34, T. 3 N., R. 18 W., on the headwaters of Hog Creek nearly half a mile downstream from the railroad milepost 77, which is nearly a mile southeast of Argyle, Walton County, Fla. 3385. Gastropod Gulch, 4 miles southeast of Bainbridge, Decatur County, Ga. 3386. Roseland Plantation, 31⁄2 miles southeast of Bainbridge, Decatur County, Ga. 3396. Sam Dickens' field (1900), 7 miles southeast of Bainbridge, Deeatur County, Ga. 3419. McClelland farm, 1 mile below Baileys Ferry, Chipola River, Calhoun County, Fla.2 3704. Quincy, Gadsden County, Fla. 3731. Near Mossyhead, sec. 6, T. 3 N., R. 21 W., Walton County, Fla. 3732. Dave Adams' Mill Creek, sec. 2, T. 3 N., R. 21 W., Walton County, Fla. 3733. Sec. 5, T. 3 N., R. 21 W., three-fourths mile west of Shell Bluff, Shoal River, Walton County, Fla. 3742. Sec. 4, T. 3 N., R. 21 W., 5 miles west of Mossyhead,4 Shell Bluff, Shoal River, Walton County, Fla. 3748. Summerville millrace, 1 mile east of Argyle, Walton County, Fla.3 3856. Sec. 6, T. 3 N., R. 21 W., 6 miles west-northwest of Mossyhead, Walton County, Fla. 5079. One-half mile below Shell Bluff, Shoal River, Walton County, Fla. 5080. First ravine below Shell Bluff, Shoal River, Walton County, Fla. 5184. First ravine below Shell Bluff, Shoal River, Walton County, Fla. *Type locality of the Shoal River formation, Shell Bluff, north bank of Shoal River, E1⁄2 sec. 4, T. 3 N., R. 21 W., 31⁄2 miles (airline) N. 250 W. of Mossyhead and three-quarters of a mile east of Godwin Bridge. Base of shell bed, 42 feet above the river and about 135 feet above sea level. 5193. Crowder's Crossing, 11⁄2 miles below Shell Bluff, Shoal River, Walton County, Fla.5 5194. 11⁄2 miles below Shell Bluff, Shoal River, Walton County, Fla. 5195. First ravine below Shell Bluff, Shoal River, Walton County, Fla. 5618. 31⁄2 miles southwest of De Funiak Springs, Walton County, Fla. 5630. 100 yards below Oak Grove Bridge, Yellow River, Okaloosa County, Fla. 5631. Oak Grove Bridge, Yellow River, Okaloosa County, Fla. 5632. Oak Grove, Yellow River, Okaloosa County, Fla. 5633. Oak Grove, Yellow River, Okaloosa County, Fla. 6175. Left bank of Suwannee River three-fourths mile above White Springs, Columbia County, Fla. 7054. 400 feet below bridge, Oak Grove, Okaloosa County, Fla. 7055. Old Senterfeit mill, 41⁄2 miles southwest of Laurel Hill, Walton County, Fla.6 7148. Gastropod Gulch, 51⁄2 miles southeast of Bainbridge, Decatur County, Ga. 7151. Tenmile Creek, Calhoun County, Fla.1 7183. Alum Bluff (lower bed), Liberty County, Fla. 7256. Look and Tremble Shoals, Chipola River, Calhoun County, Fla.7 7257. Sexton's marl bed, Tenmile Creek, sec. 11, T. 1 N., R. 10 W., Calhoun County, Fla. 7261. Upper Alaqua Lethu (?) Bluff, near De Funiak Springs, Walton County, Fla.7 7264. De Funiak Cardium beds, Alaqua Creek, Walton County, Fla.7 7468. Sopchoppy, Wakulla County, Fla. 7893. Boynton Landing, Choctawhatchee River, Washington County, Fla. 5 C. Wythe Cooke, 1945, identifies Crowder's Crossing with the old ford in Shoal River, one-fourth mile below Godwin Bridge. C. Wythe Cooke, 1945, identifies the old Senterfeit mill with Tanner's mill and places it in sec. 15, T. 5 N., R. 23 W., 4% miles southwest of Laurel Hill, Walton County, Fla. Cannot be located more exactly. 9957. Gully south of the road and east of the bridge over Whites Creek, on road from Eucheeanna to Knox Hill, 6.7 miles south of Argyle and 1.7 miles southeast of Eucheeanna, Walton County, Fla. 9958. Site of Flournoy's old mill, about 11⁄2 miles northeast of Argyle, Walton County, Fla. 9959. One-fourth mile west by north of Pleasant Ridge Church, 5.2 miles southwest of De Funiak Springs. Walton County, Fla. 9960. Folks Creek, sec. 21 or 22, T. 3 N., R. 18 W., 6 miles south of Argyle and 1.7 miles from Eucheeanna, Walton County, Fla. 9961. Horse Creek, 11⁄2 miles south of Oak Grove, Okaloosa County, Fla. 10288. Alum Bluff, Apalachicola River, Liberty County, Fla. 10603. Gully south of the road and east of the bridge over Whites Creek, on road from Eucheeanna to Knox Hill, 6.7 miles south of Argyle and 1.7 miles southeast of Eucheeanna, Walton County, Fla. 10608. Whites Creek, one-half mile below bridge on Eucheeanna-Knox Hill road, 6.7 miles south of Argyle, Walton County, Fla. 10609. The Woodyard, three-fourths mile above Shell Landing, Holmes Creek, Washington County, Fla. (lower bed). 10612. Chester Spence's farm, 5 miles southwest of De Funiak Springs, at head of Sconters Mill Creek, Walton County, Fla. 10659. Tanner's mill (old Senterfeit mill), 4 miles southwest of Laurel Hill, Okaloosa County, Fla. 10661. Godwin Bridge over Shoal River, 5 to 6 miles northwest of Mossyhead, Walton County, Fla. 10662. Lower bed, Shoal River, between Godwin Bridge and Shell Bluff, 5 to 6 miles west-northwest of Mossyhead, Walton County, Fla. 10971. Turtle Lake Bluff, about 150 yards above mouth of Fourmile Creek, Chipola River, Calhoun County, Fla. 14436. Gully south of the road and east of the bridge over Whites Creek on road from Eucheeanna to Knox Hill, 6.7 miles south of Argyle and 1.7 miles southeast of Eucheeanna, Walton County, Fla. Collection made by the Geological Survey of the State of Florida and presented to the United States Geological Survey. Distribution of Ctenobranchia (in part), Aspidobranchia, and Scaphopoda in the Alum Bluff group of Florida and Georgia [pr, Prolific; a, abundant; e, common; p, present; r, rare. The localities within each State and formation are arranged in geographic order from north to south and from west to east] Georgia-Oak Species Mitrella pedana Gardner, n. sp.. tytha Gardner, n. sp.... megala Gardner, n. subsp.. ischna Gardner, n. sp....... mitrodita Gardner, n. subsp.. aldrichi (Maury) nemoralis (Maury). Murex (Murex) chipolanus Dall.. Paziella (Dallimurex) lychnia Gardner, n. sp...... Pteropurpura dryas Gardner, n. sp...... virginiae (Maury).... (Talityphis) alatus obesus Gabb.. Eupleura pterina Gardner, n. sp.... Personella floridana Gardner, n. sp....... Morum (Oniscidia) chipolanum (Dall ms) Gardner, n. sp... Ficus eopapyratia Gardner, n. sp...... (Cypraeorbis) chilona Dall....... (Cypraeorbis) tapeina Gardner, n. sp... Trivia chipolana Maury. vaughani Gardner, n. sp.... Erato (Hespererato) chipolana Maury... Distribution of Ctenobranchia (in part), Aspidobranchia, and Scaphopoda in the Alum Bluff group of Florida and Georgia-Continued [pr, Prolific; a, abundant; e, common; p, present; r, rare. The localities within each State and formation are arranged in geographic order from north to south and from west to east] Florida-Chipola formation Johns Hopkins University Aldrich collection, Cornell University collections 3386 3385 7148 3396 10609 7893 2212 2214 7257 2213 2564 3419 7151 7256 10971 2211 7183 2566 3704 2302 10288 7468 p C p pp Georgia-Oak Grove sand Species Natica (Natica) alticallosa Dall...... Natica (Naticarius) precursor Gardner, n. sp... Natica (Stigmaulax) guppiana Toula. (Stigmaulax) guppiana toulana Gardner, n. subsp. (Tectonatica) mino Gardner, n. sp. (Tectonatica) semen Gardner, n. sp.. (Tectonatica?) platabasis Gardner, n. sp.. Polinices judsoni (Maury)........ Polinices? demicryptus Gardner, n. sp... (Neverita) chipolanus Dall... Euspira rotunda Gardner, n. sp.. waltonense Gardner, n. sp.. caractica (Dall).... Strombus aldrichi Dall.. Orthaulax gabbi Dall. crenata Gardner, n. sp. fornicata (Linnaeus).. acsop Dall...... plana Say Crucibulum chipolanum Dall. chipolanum dodoneum Gardner, n. subsp. waltonense Gardner, n. sp... constrictum conjuge Gardner, n. subsp. grande (Say)...... multilineatum (Conrad). Capulus chipolanus Gardner, n. sp. Fossarus chipolanus (Dall). Cheilea dryas (Dall ms) Gardner, n. sp.. florius Gardner, n. sp. myttonis (Maury) Strombiformis scotti (Maury) ischna Gardner, n. sp. (Polygireulima?) chipolana (Maury).. Epitonium (Spiniscala) virginiae (Maury). Gegania acutissima (Dall) dodona Gardner, n. sp. biconicus Gardner, n. sp. willcoxii Dall Caccum chipolanum Gardner, n. sp. pararegulare Gardner, n. sp. Pr r r r ap r p p p pr ap arc D L pe 2 Lemintina granifera (Say)...... papulosa (Guppy)... Petaloconchus sculpturatus H. C. Lea. Architectonica chipolana (Dall)..... quadriseriata (Sowerby), subsp.. waltonensis Gardner... alvear Gardner. verecunda Gardner. (Pseudotorinia) bisulcata (D'Orbigny). Turritella subgrundifera Dall.. alcida Dall.......... bicarinata Gardner, n. subsp. gatunensis blountensis Mansfield... segmenta Gardner, n. sp........ (Torcula) dalli Gardner, n. sp.... (Torcula) waltonensis Gardner, n. sp.. (Torcula?) sp....... (Torcula?) mixta Dall. (Torcula?) jacula Gardner, n. sp.... (Torcula?) chipolana Dall... "Vitrinella" seminola Gardner, D. sp... waltonia Gardner, n. sp... excavata Gardner, n. sp....... "Circulus" mitorraphes Gardner, n. sp.. anthera Gardner, n. sp...... Cochliolepis arietina Gardner, n. sp......... (Zebinella) chipolana Dall.. Rissoa phagon Gardner, n. sp..... Smaragdia grammica Gardner, n. sp..... chipolana (Dall) Tricolia affinis chipolana Gardner, n. subsp.... probrevis Gardner, n. sp....... Astraea dalli (Maury).... (Lithopoma) chipolana (Dall) nanum eonanum Gardner, n. sp....... phacoton Gardner, n. sp....... mekon Gardner, n. sp....... Solariorbis microforatis Dall... Chlorostoma (Omphalius) exolutum (Conrad). (Omphalius) exolutum limatum Dall..... Calliostoma grammaticum Dall metrium Dall........ exile Dall... rhombotoide Gardner, n. sp..... flumenvadum Gardner, n. sp.... Solariella turritella Dall... Lucapinella limatula (Reeve). daidala Gardrer, n. sp.... pumpellyi Gardner, n. sp..... Rimula woodringi Gardner, n. sp... (Antalis) diopon Gardner, n. sp......... Cadulus (Polyschides) lobion Gardner, n. sp...... (Gadila) clarae Maury (Gadila?) volvulus Gardner, n. sp.... (Gadila) spiniformis Gardner, n. sp..... Pa Pr ?p Pp |