Erythrolamprus aenigma ENTIAUSPE-NETO, ABEGG, KOCH, NUÑEZ, AZEVEDO, MORAES, TIUTENKO, BIALVES & LOEBMANN, 2021
Can you confirm these amateur observations of Erythrolamprus aenigma?
Erythrolamprus aenigma
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| Higher Taxa | Colubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
| Subspecies | |
| Common Names | E: Savannah Racer Snake P: Corredeira de Savana S: Guarda-camino de Sabana |
| Synonym | Erythrolamprus aenigma ENTIAUSPE-NETO, ABEGG, KOCH, NUÑEZ, AZEVEDO, MORAES, TIUTENKO, BIALVES & LOEBMANN 2021 Erythrolamprus poecilogyrus schotti – ENTIAUSPE-NETO et al. 2016: 61 (part.) Erythrolamprus poecilogyrus – AZARAK & FARIAS 2017: 45 (non WIED-NEUWIED) |
| Distribution | Brazil (Roraima), Guyana (Kuruwini), Venezuela (Bolívar), Colombia Type locality: Boa Vista (2°49’12” N, 60°40’19” W, 90 m a.s.l.), Roraima state, Brazil. |
| Reproduction | |
| Types | Holotype: IBSP 90722, Adult female (Figs 3–4), col. M. Duarte, F. L. Franco, R. Feltran and W. Azevedo on 03 March 2019. Paratypes: INPA-H 34377, Adult female, col. P. Azarak in 2012, from Rorainópolis (0°50’30” N, 60°40’48” W, 200 m a.s.l.), Roraima, Brazil; adult female (CHFURG 5068), col. D. Loebmann in 2016, from Boa Vista (2°49’12” N, 60°40’19” W, 90 m a.s.l.), Roraima, Brazil; adult female (IBSP 90743), col. M. Duarte, F. L. Franco and W. Azevedo in 2019, dissected head, from Boa Vista (2°49’12” N, 60°40’19” W, 90 m a.s.l.), Roraima, Brazil; adult female (IBSP 90727, Fig. 5E), col. M. Duarte, F. L. Franco and W. Azevedo in 2019, dissected head, from Boa Vista (2°49’12” N, 60°40’19” W, 90 m a.s.l.), Roraima, Brazil; juvenile female (IBSP 90660), col. M. Duarte, F. L. Franco and W. Azevedo in 2019, from Boa Vista (2°49’12” N, 60°40’19” W, 90 m a.s.l.), Roraima, Brazil; juvenile female (AMNH-R 60803), from Kuyuwini (2o12’30” N, 58o28’30” W), Guyana. Referred specimens: Unsexed adult (MTR 20581), from Fazenda Salvamento, Boa Vista (2°49’12” N, 60°40’19” W, 90 m a.s.l.), Roraima, Brazil; unsexed adult (MTR 20551) from Estação Ecológica Maracá, Amajari (3°39’07” N, 61°22’15” W, 100 m a.s.l.), Roraima, Brazil; unsexed adult (MTR 20546) from Estação Ecológica Maracá, Ama- jari (3°39’07” N, 61°22’15” W, 100 m a.s.l.), Roraima, Bra- zil; unsexed adult (MZUSP 10389, field tag LJV 2570), col. L.J. Vitt, from Novo Brasil, Boa Vista (2°49’12” N, 60°40’19” W, 90 m a.s.l.), Roraima, Brazil; unsexed adult (CVULA, voucher unknown, photographic voucher), col. C.B. Amorós, reportedly lost, from “Barinitas” (un- known locality), Bolívar, Venezuela; unsexed adult (CVU- LA, voucher unknown, photographic voucher), col. C.B. Amorós, reportedly lost, from Santa Elena de Uairen (4o36’8” N, 61o06’36” W, 900 m a.s.l.), Bolívar, Venezuela. |
| Diagnosis | Diagnosis: The new species is assigned to Erythrolamprus based on molecular evidence, considering that until now, no unambiguous morphological synapomorphy is known for this genus [see Zaher et al. (2009) and Grazziotin et al. (2012)]. The new species can be differentiated from all other Erythrolamprus species by the following combination of characters: (1) 19/19/15 dorsal scales; (2) preocular present, contacting loreal, supraocular, 3rd and 4th supralabials; (3) loreal present; (4) temporals 1+2 (1+1+2 in a single specimen); (5) supralabials eight, 4th–5th in contact with orbit; (6) infralabials 10/10 (11/10 in a single specimen), 1st–5th in contact with anterior chinshields; (7) ventrals 149–154 in females; (8) subcaudals 45–50 in females; (9) dorsal background coloration light grey, scales reticulated, with black margins and diffuse light blue lateral edges; (10) ventral and subcaudal coloration white with conspicuous diffuse and irregular small black blotches or dots; (11) black and white nuchal collars present, arrow-shaped, black nuchal collar over parietals, temporals and occipitals, up to one and a half scales wide; white nuchal collar over interoccipitals and dorsals, up to two scales wide, with outer black margins; (12) SVL 167–476 mm, TL 40–114 mm (Entiauspe-Neto et al. 2021). 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 5526 characters) are available for collaborators and contributors. Please contact us for details. |
| Comment | |
| Etymology | The specific epithet, aenigma, is a Latin singular noun in nominative case, meaning a “mystery” or “riddle”, and refers to the noteworthy absence of males in our examined sample of specimens. |
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