Macrochelys suwanniensis THOMAS, GRANATOSKY, BOURQUE, KRYSKO, MOLER, GAMBLE, SUAREZ, LEONE & ROMAN, 2014
Can you confirm these amateur observations of Macrochelys suwanniensis?
|Higher Taxa||Chelydridae, Testudines (turtles)|
|Common Names||E: Suwannee Alligator Snapping Turtle|
|Synonym||Macrochelys suwanniensis THOMAS, GRANATOSKY, BOURQUE, KRYSKO, MOLER, GAMBLE, SUAREZ, LEONE & ROMAN 2014|
Macrochelys temminckii — JENSEN et al. 2008: 459 (part.)
Macrochelys suwanniensis — TTWG 2017
Macrochelys suwanniensis — CROTHER et al. 2017
|Distribution||USA (Florida, Georgia: Suwannee River drainage)|
Type locality: Santa Fe River and State Road 235, Alachua County, Florida (29.87872°N, 82.33619°W, datum WGS84, elevation 23 m).
|Types||Holotype: UF 166146, adult male skeleton, found dead, apparently from gunshot wounds, in very low water in 2003 by Jason R. Bourque (see Figures 10, 11, 12). (Suwannee lineage; Figure 9). Paratypes. UF 22267, partial skeleton from Santa Fe River, near Town of Santa Fe, Alachua County, Florida, on 9 April 1962 by George R. Zug; UF 12694, partial skeleton from Fletcher Spring, Lafayette County, Florida (29.84672oN, 82.89256oW, elev. 9 m), on 19 November 1961 by B. Sites, D. Desautels, and D. Young.|
|Diagnosis||Diagnosis. Macrochelys suwanniensis is distinguished by the following: carapacial caudal notch very wide and lunate (Figure 10), usually comprising the pygal and peripheral set 11 (shared with Chelydra); pygal sutured medially (composed of two bones) often with no serrations; Peripheral 11 with 1–2 serrations; distal rib end of costal 1 enters posterior third of peripheral 3; pleural scute set 1 with broad overlap onto the nuchal; dermal scale on the frontals very wide; processus trochlearis oticum with developed proximal and distal protuberances; squamosal contacts opisthotic anteriorly when viewed in dorsal aspect; mandible broad with expanded triturating surfaces and developed labial rugosity just anterior to the coronoid; posterior projection of the squamosal acutely angled in lateral aspect, dorsally straight or downwardly directed, and posteriorly extensive past the plane of the quadrate (Figure 11) (THOMAS et al. 2014).|
|Comment||Habitat: freshwater (lakes, quiet rivers)|
|Etymology||Specific epithet refers to combination of the new Latin suwanni– (referring to the Suwannee River) and the Latin –ensis (belongs to the) to form the composite noun suwanniensis.|
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