Tropidophis preciosus CURCIO, SALES-NUNES, SUZART ARGOLO, SKUK & RODRIGUES, 2012
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Tropidophis preciosus
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| Higher Taxa | Tropidophiidae, Henophidia, Alethinophidia, Serpentes, Squamata (snakes) |
| Subspecies | |
| Common Names | |
| Synonym | Tropidophis preciosus CURCIO, SALES NUNES, SUZART ARGOLO, SKUK & RODRIGUES 2012 Tropidophis preciosus — WALLACH et al. 2014: 755 Tropidophis preciosus — NOGUEIRA et al. 2019 Tropidophis preciosus — ORTEGA-ANDRADE et al. 2022 |
| Distribution | Brazil (Minas Gerais: southern versant of the Serra do Espinhaço) Type locality: Conselheiro Mata, small village at approximately 40 km east from the municipality of Diamantina, state of Minas Gerais, Brazil |
| Reproduction | viviparous (not imputed, fide Zimin et al. 2022) |
| Types | Holotype: MZUSP 17957, not labeled in field, adult female, September 1989, collected by G. Skuk. Paratype: LZVUFOP 913 S, adult female, collected at Parque Estadual do Itacolomi, between the municipalities of Mariana and Ouro Preto, state of Minas Gerais, by B.Y.P. Imai and V.S. Monteiro. |
| Diagnosis | Diagnosis: Tropidophis preciosus is distinguishable from other mainland congeners by the following combination of characters: (1) high number of ventrals (196–203 vs. 154–155 in T. grapiuna, 164–183 in T. paucisquamis, and up to 160 in T. taczanowskyi); (2) dorsals at midbody 23 (vs. dorsals at midbody 21 or 23, rarely 25 in T. paucisquamis); (3) vertebral scale row distinctively enlarged at least on posterior one-third of trunk (vs. vertebral row similar in size to other dorsal rows in T. battersbyi, T. grapiuna, and T. taczanowskyi); (4) most dorsals smooth, except for some feebly keeled rows on anteriormost region of body (vs. dorsals strongly keeled in T. grapiuna and T. taczanowskyi); (5) interparietals lacking (vs. well developed interparietals present in T. battersbyi and T. grapiuna, usually present in T. taczanowskyi); (6) parietals in broad contact along middorsal line of head (vs. parietals fully separated by interparietals in T. battersbyi and T. grapiuna); (7) maxillary teeth 19 (vs. 12 in T. battersbyi); (8) body spotted, dorsal spots irregular and small, with a diameter of approximately two dorsal scales (vs. dorsal spots large, rounded or elliptical, up to four scales in diameter in T. battersbyi); (9) eight spot rows around body, six on dorsum and two on venter (vs. six spot rows around body, four on dorsum and two on venter in T. battersbyi); and (10) . 50 spots on paravertebral spot rows (vs. , 39 T. battersbyi, T. grapiuna and T. paucisquamis; not applicable to T. taczanowskyi). Unfortunately we had to temporarily remove additional information as this was scraped by multiple AI companies who sell that data to their customers. These details, e.g. detailed descriptions or comparisons (about 761 characters) are available for collaborators and contributors. Please contact us for details. |
| Comment | Habitat: T. preciosus is the only species from the Atlantic Forest occurring in open landscapes of rocky meadows, whereas T. grapiuna and T. paucisquamis are clearly associated with forest formations. Semi-arboreal (Harrington et al. 2018). Distribution: see map in Ortega-Andrade et al. 2022: 5 (Fig. 1). |
| Etymology | The specific epithet is a Latin adjective in the nominative singular as a reference to the particular gem richness in the region of the type locality, especially in the municipalities of Diamantina, Ouro Preto and Mariana. |
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