Emys trinacris FRITZ, FATTIZZO, GUICKING, TRIPEPI, PENNISI, LENK, JOGER & WINK, 2005
Can you confirm these amateur observations of Emys trinacris?
|Higher Taxa||Emydidae, Emydinae, Testudinoidea, Testudines (turtles)|
|Common Names||E: Sicilian pond turtle|
G: Sizilianische Sumpfschildkröte
I: Testuggine palustre siciliana
|Synonym||Emys trinacris FRITZ, FATTIZZO, GUICKING, TRIPEPI, PENNISI, LENK, JOGER & WINK 2005|
Emys trinacris — RHODIN et al. 2010
|Distribution||Italy (Sicily), elevation 0-1036 m.|
Type locality: corrected to “Laghetto Gianferraro, Coordinates (WGS84, decimal degrees): 14.497241 E, 37.951625 N
Elevation: 1007 m a.s.l.” by Marrone et al. 2016.
|Types||Holotype: MZUF 11136, Museo Zoologico ‘La Specola’, Florence.|
|Diagnosis||Diagnosis. A small Emys species (known maximum straight-line carapacial length: 145 mm) with a dark carapace and a mainly or entirely yellow plastron. Small dark blotches at the distal seams of the plastral scutes are rare but may occur; most frequently on the pectoral-abdominal and on the abdominal-femoral seams. Emys trinacris differs from the highly polytypic and morphologically variable E. orbicularis by its distinct mitochondrial and nuclear genes, indicating reproductive isolation. Morphologically, E. trinacris differs from the northern E. orbicularis subspecies by its distinctly smaller size and lighter colouration of the shell and soft parts; it differs from the orbicularis subspecies group of E. orbicularis, E. o. luteofusca, and E. o. iberica in that the iris of males is white instead of reddish. Among the small-sized southern subspecies of E. orbicularis, E. trinacris most closely resembles E. o. galloitalica in gross morphology; however, E. trinacris has a more ovoid, and not elongated, shell outline in dorsal view on average. A light brownish or yellowish brown primary colour of the carapace, which is frequent in E. o. galloitalica, is not known to occur in E. trinacris.|
|Comment||Not recognized by SINDACO & JEREMCENKO 2008.|
Phylogeny: when using nuclear DNA, Spinks & Shaffer (2009) found E. trinacris to nest within E. orbicularis. However, when mtDNA was used, it appeared to be in a separate clade.
Habitat: freshwater (swamps, ponds, rivers)
|Etymology||Named after the ancient Greek word for Sicily, “Trinacria” = triangular island, which is still used for Sicily in Italy.|
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