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Ameivula apipensis ARIAS, RECODER, ÁLVAREZ, ETHCEPARE, QUIPILDOR, LOBO & RODRIGUES, 2018

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Higher TaxaTeiidae, Teiinae, Gymnophthalmoidea, Sauria, Squamata (lizards) 
Subspecies 
Common Names 
SynonymAmeivula apipensis ARIAS, RECODER, ÁLVAREZ, ETHCEPARE, QUIPILDOR, LOBO & RODRIGUES 2018 
DistributionArgentina (Corrientes)

Type locality: Apipé island, (19°17’24’’S, 43°32’55.1’’W), Corrientes province, ARGENTINA, elevation 70 m  
Reproduction 
TypesHolotype: UNNEC 11200, adult male, collected by Federico Arias, Eduardo Etchepare, Maria del Rosario Ingaramo and Belén Arrieta, on May 9 of 2011.
Paratypes: Adult males; UNNEC 9594, 10194, 11119, 11087; 11088; 10195. Adult females; UNNEC 11089, 11091, 9588, 9683, 9765. Juveniles; UNNEC 11120, 11123, 11124, 11125. All from the same locality as the holotype (19°17’24’’S, 43°32’55.1’’W), collected between 9 March and 15 March 2011, by the same collectors as for the holotype.
 
DiagnosisDiagnosis: Ameivula apipensis sp. n. is a slender, medium sized species (maximum SVL ♂= 63.3 mm, ♀= 60.5 mm) , distinguished from all congeners by the following combination of characters: (1) a whitish brown vertebral stripe both in adults and juveniles, (2) ventral aspect of the head and body yellow, (3) lateral field with overlapping spots (no ocelli), (4) inter-frontoparietal scale present in 46.2 % (n= 39) of the specimens (Fig. 3B), (5) hemipenis without lateral sac , and (6) five xifiesternal ribs.

Comparisons: Data from species in comparison are given in parentheses; Ameivula apipensis sp. n. differs of A. abalosi by having 12–17 femoral pores (16–20), lacrimal scale not contacting first supraciliar (contact), in 96.5% of the specimens analyzed (n=57) the postnasal contact prefrontal (32.5 %, n= 40), the most anterior end of frontal exceeds the most anterior end of the first supraocular (no, Fig. 4D), dorsolateral stripe continuous, between the eye and ear (discontinuous, Fig. 4A and C, character 1), 1–3 palatine teeth (without palatine teeth), five postxiphisternal ribs (four postxiphisternal ribs), full articular bone of the lower jaw (commissure in posterior region of articular), and hemipenis without lateral sac (with three lateral sac, Fig. S 3). Ameivula apipensis sp. n. differs of Ameivula sp. W-Ce (sister clade) by having 28-35 gular scales (37-48), the frontoparietal scale have the half size of frontal (almost the same size), lateral flanks green (dorsolateral flanks black or dark brown), ocelli absent (with bright green ocelli), and hemipenis without lateral sac (with three lateral sac). A. apipensis sp. n. differs from A. jalapensis, A. mumbuca, and A. xacriaba by having 28–35 gular scales (46–64, 38–49 and 41–47, respectively ), subdigital lamellae smooth (keeled), paravertebral stripes present (absent), throat yellow (lime-green in A. jalapensis and immaculate in A. mumbuca and A. xacriaba). In addition, the new species differ from A. jalapensis by having 5 parietals (3–5), 8 longitudinal rows of ventral scales (6–8), a medium body size, maximum SVL ♂= 63.3 mm, ♀= 60.5 (smaller body size, maximum SVL ♂= 54.2 mm, ♀= 58 mm), tail length/SVL mean= 1.9 (mean= 2.6), in the 88.5% of the specimens analyzed (n= 61) the first supraocular contact second supraocular (27.3%, n= 38), hind limbs with spots (without spots). Ameivula apipensis sp. n. differs from A. mumbuca by having 12–17 femoral pores (16–20), lateroventral field bright green in males (bright yellow in males). Ameivula apipensis sp. n. differs from A. confusioniba by having 24–27 fourth toe lamellae (29–35), 12–17 femoral pores (16–21), conspicuous dorsolateral stripes (dorsolateral stripes absent), maximum SVL ♂= 63.3 mm, ♀= 60.5 (maximum SVL ♂= 74.8 mm, ♀= 68 mm). Ameivula apipensis sp. n. differs from A. ocellifera by having 24–27 fourth toe lamellae (28–31), 184–230 dorsal scales (172–188), lateral field without ocelli (with ocelli). Ameivula apipensis sp. n. differs from A. nigrigula by having 14–16 fourth finger lamellae (16–18), 24–27 fourth toe lamellae (30–32), 84–90 scales around midbody (97–105), spots on the hind limbs in adult male (without spots in male adult), ocelli absent (conspicuous purple ocelli), absence of a patch of tibiotarsal spurs in males (present), yellow throat (dark black), and by lacking ontogenetic color change in males (present), maximum SVL ♂= 63.3 mm, ♀= 60.5 (maximum SVL ♂= 90 mm, ♀= 64.9 mm). Ameivula apipensis sp. n. differs from A. pyrrhogularis by having 12–17 femoral pores (16–22); 84–90 scales around midbody (87–124), maximum SVL ♂= 63.3 mm, ♀= 60.5 (maximum SVL ♂= 89 mm, ♀= 77.5 mm), and gular region white in males (orange). A. apipensis sp. n. differ from A. cipoensis by having 4-6 supraoculars (3 supraoculars), no contact between frontoparietal and third supraocular (contact), the first pair of chinshields is the largest (the third pair is the largest), 14–16 fourth finger lamellae (12–14), 24–27 fourth toe lamellae (21–24), lateral field with spots overlapping (with yellow greenish ocelli).
 
Comment 
EtymologyThe specific name “apipensis” refers to the type locality, Apipé island, Department of Ituzaingó, Corrientes Province, Argentina 
References
  • Arias FJ, Recoder R, Álvarez BB, et al 2018. Diversity of teiid lizards from Gran Chaco and Western Cerrado (Squamata: Teiidae). Zool Scr. 2018;47:144–158 - get paper here
 
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