Amphisbaena mebengokre RIBEIRO, SÁ, SANTOS JR, GRABOSKI, ZAHER, GUEDES, ANDRADE & VAZ-SILVA, 2019
Can you confirm these amateur observations of Amphisbaena mebengokre?
|Higher Taxa||Amphisbaenidae, Amphisbaenia, Lacertoidea, Squamata|
|Synonym||Amphisbaena mebengokre RIBEIRO, SÁ, SANTOS JR, GRABOSKI, ZAHER, GUEDES, ANDRADE & VAZ-SILVA 2019|
Type locality: banks of the Caiapó River (16o27’25’’S, 51o22’41’’W; 464 m above of sea level; datum = WGS84) near to the Hydroelectric Power Plant Santo Antônio do Caiapó, Municipality of Arenópolis, State of Goiás, Brazil
|Types||Holotype: MNRJ 25189, adult male collected on 22 November 2012 by Jafi M. Carmo and Wilian Vaz-Silva. Paratypes: Adult males: MNRJ 25191, MNRJ 25194, MNRJ 25196, MNRJ 25198, MPEG 32206, ZUFG 1194, ZUFG 1196, ZUFG 1201, ZUFG 1204, ZUFG 1205, ZUFG 1207. Adult females: MNRJ 25190, MNRJ 25192, MNRJ 25193, MNRJ 25195, MNRJ 25197, MPEG 32205, ZUFG 1193, ZUFG 1195, ZUFG 1197, ZUFG 1200, ZUFG 1202, and ZUFG 1203. Undetermined: ZUFG 1206. All paratypes are from the type locality, Arenópolis municipality, state of Goiás, Brazil, collected by Wilian Vaz-Silva, Jafi M. Carmo, Paulo Roberto Gomes, and Edmar P. Victor between 22 and 28 November 2012.|
|Diagnosis||Diagnosis. The new species is a member of the Amphisbaena silvestrii group (sensu Vanzolini 1997) and is distinguished from all congeners by the combination of the following characters: (1) snout rounded in dorsal view and slightly convex in profile view; (2) two precloacal pores; (3) 161–176 dorsal half-annuli; (4) 12–15 tail annuli; (5) 3/3 supralabials; and (6) postmalar row absent.|
Comparisons with other species. Amphisbaena mebengokre sp. nov. can be distinguished the other South American amphisbaenians species by a combination of characters. Differs from Amphisbaena acrobeles (Ribeiro, Castro-Mello & Nogueira, 2009); Amphisbaena anomala (Barbour, 1914); Amphisbaena bilabialata (Stimson, 1972); Amphisbaena kingii (Bell, 1833); Leposternon bagual Ribeiro, Santos-Jr & Zaher, 2015; Leposternon cerradensis Ribeiro, Vaz-Silva & Santos-Jr, 2008; Leposternon infraorbitale (Berthold, 1859); Leposternon kisteumacheri Porto, Soares & Caramaschi, 2000; Leposternon maximus Ribeiro, Nogueira, Cintra, Silva Junior & Zaher, 2011; Leposternon microcephalum Wagler, 1824; Leposternon mineiro Ribeiro, Silveira & Santos-Jr, 2018; Leposternon octostegum (Duméril & Duméril, 1851); Leposternon polystegum (Duméril & Duméril, 1851); Leposternon scutigerum (Hemprich, 1820); Leposternon wuchereri (Peters, 1879); Mesobaena huebneri Mertens, 1925; and Mesobaena rhachicephala Hoogmoed, Pinto, Rocha & Pereira, 2009 mainly by having snout rounded in dorsal view and slightly convex in profile view (vs. snout shovel-like or compressed forming a sharp and prominent keel) (details of cited species in original descriptions and studies of Gans 1971a, 1971b; Mott et al. 2008; Hoogmoed et al. 2009; Ribeiro et al. 2009; Ribeiro 2010; and Ribeiro et al. 2018). It differs from all others Amphisbaena species with rounded snout, except of A. absaberi, A. anaemariae, A. brevis, A. caiari, A. carli, A. crisae, A. cuiabana, A. darwini, A. dubia, A. filiformis, A. hiata, A. kiriri, A. leeseri, A. lumbricalis, A. miringoera, A. mitchelli, A. neglecta, A. persephone, A. roberti, and A. silvestrii by having two precloacals pores. The new species differs from all Amphisbaena species with two precloacals pores, except A. anaemariae, A. crisae, A. darwini, A. kiriri and A. silvestrii by having 161–176 dorsal half-annuli (vs. less than 140 dorsal half-annuli in A. brevis, less than 154 in A. neglecta, and more than 188 dorsal half-annuli in the other species). It differs from Amphisbaena anaemariae, A. crisae, A. darwini, and A. silvestrii by having 12–15 tail annuli (vs. more than 18 tail annuli in the other species); and A. kiriri by having 3/3 supralabials and postmalar row absent (vs. 4/4 supralabials and postmalar row present).
|Comment||Morphology: This species is one of ~20 species of Amphisbaena with two precloacal pores (Ribeiro et al. 2019).|
|Etymology||Amphisbaena mebengokre sp. nov. was found on the banks of the Caiapó River. The river's name gives homage to the indigenous people who inhabited the region and were expelled by the colonizers. The term "Kayapó" was first used in the early nineteenth century. The term was created by neighboring indigenous groups and means "those who look like monkeys" (a reference to a ritual using monkey masks). The Kayapó people prefer to call themselves "Mebêngôkre", which means "men of the springs." The specific epithet mebengokre gives homage to the Mebêngôkre ethnicity.|