17. Carapace having evidence of more than one dark marginal line, and scattered, black spots or ocelli _spinifer asper_, p. 502 Carapace having only one, dark, marginal line 18 18. Carapace having small black spots, lacking large interrupted ocelli _spinifer hartwegi_, p. 497 Carapace having small black spots interspersed among larger, interrupted ocelli _spinifer spinifer_, p. 489 19. Carapace having pattern of dusky spots, sometimes short lines 20 Carapace lacking pattern of dark spots or lines, having a mottled and blotched pattern 21 20. Pattern of circular spots, lacking short lines or bacilliform marks; spots sometimes slightly ocellate; no pale stripes on snout _muticus calvatus_, p. 539 Pattern of dots, or dots and short lines; pale stripes on snout, at least just in front of eyes _muticus muticus_, p. 534 21. Mottled and blotched pattern usually contrasting; ill-defined, blackish blotch absent behind eye _muticus muticus_, p. 534 Mottled and blotched pattern usually not contrasting; ill-defined, dark blotch may be present behind eye _muticus calvatus_, p. 539 Systematic Account of Species and Subspecies =Trionyx ferox= (Schneider) Florida Softshell Plates 31 and 32 _Testudo ferox_ Schneider, Naturg. Schildkr., p. 330, 1783 (based on Pennant, Philos. Trans. London, 61 (Pt. 1, Art. 32): 268, pl. 10 [figs. 1-3], 1772). _Trionyx ferox_ Schwartz, Charleston Mus. Leaflet, No. 26:17, pls. 1-3, May, 1956. _Testudo mollis_ Lacépède, Hist., Nat. Quadr. Ovip. Serp., 1:137, pl. 7, 1788. _Testudo_ (_ferox_?) verrucosa Schoepff, Hist. Testud., Fasc. 5 (Plag. M):90, pl. 19, 1795. _Testudo bartrami_ Daudin, Hist. Nat. Rept., 2:74, pl. 18, fig. 2, 1801. _Trionyx georgicus_ Geoffroy, Ann. Mus. Hist. Nat., Paris, 14:17, August, 1809. _Mesodeca bartrami_ Rafinesque, Atlan. Jour., Friend Knowledge, Philadelphia, 1 (No. 2, Art. 12):64, Summer, 1832. _Trionyx harlani_ Bell in Harlan, Medic. Phys. Research, p. 159, 1835. _Type._--Holotype, British Museum (Natural History) 1947.3.6.17; original number 53A, presumably that of Royal Society; stuffed adult female and skull; obtained from the Savannah River, Georgia, by Dr. Alexander Garden. _Range._--Southern South Carolina, southeastern Georgia, and all of Florida except the Keys and perhaps the western end of the panhandle (see map, Fig. 18). [Illustration: FIG. 18. Map of southeastern United States showing geographic distribution of _Trionyx ferox_.]