Sicilian pond turtle
The Sicilian pond turtle (Emys trinacris) is a species of turtle in the family Emydidae. The species is endemic to Sicily. Etymology
The specific name, trinacris, is from the Greek word Trinacria, meaning "three-pointed", the earliest known name for the island of Sicily. Subspecies
There are no subspecies of E. trinacris that are recognized as being valid. Description
E. trinacris is a small turtle. Maximum straight carapace length is . The features of the turtle can vary depending on the location of the turtle, for example “Moreover, coloration of Lago Preola turtles is rather uniform, whereas turtles from Torre Salsa exhibit considerable coloration polymorphism.” (Fritz et al., 2006). The reason for this is because of a disruption in the gene flow caused by anthropogenic activities like industrialization. Since there are obstacles in the way like roads and buildings migrating to different groups is more difficult for the turtles. E. trinacris differs from E. orbicularis by its distinct mitochondrial DNA. Habitat
The preferred habitat of E. trinacris is freshwater in ponds, lakes, rivers, and swamps. References

Bibliography

 Fritz, U., D’Angelo, S., Pennisi, M. G., & Valvo, M. L. (2006). Variation of Sicilian pond turtles, Emys trinacris – What makes a species cryptic? Amphibia-Reptilia, 27(4), 513–529. https://doi.org/10.1163/156853806778877095
 Iannella, M., Cerasoli, F., D’Alessandro, P., Console, G., & Biondi, M. (2018). Coupling GIS spatial analysis and Ensemble Niche Modelling to investigate climate change-related threats to the Sicilian pond turtle Emys trinacris, an endangered species from the Mediterranean. PeerJ, 6, e4969. https://doi.org/10.7717/peerj.4969
 Vecchioni, L., Marrone, F., Arculeo, M., Fritz, U., & Vamberger, M. (2020). Stand out from the Crowd: Small-Scale Genetic Structuring in the Endemic Sicilian Pond Turtle. Diversity, 12(9), 343. https://doi.org/10.3390/d12090343

Further reading
Fritz, Uwe; Fattizzo, Tiziano; Guicking, Daniela; Tripepi, Sandro; Pennisi, Maria Grazia; Lenk, Peter; Joger, Ulrich; Wink, Michael (2005). "A new cryptic species of pond turtle from southern Italy, the hottest spot in the range of the genus Emys (Reptilia, Testudines, Emydidae)". Zoologica Scripta 34 (4): 351–371. (Emys trinacris, new species). Emys
Endemic fauna of Italy
Fauna of Sicily
Turtles of Europe
Reptiles described in 2005