Comprehensive Description

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Adult male (CORBIDI 07219) (Fig. 2c, d; 3a, b); SVL 55.0 mm, tail (complete) length 101.0 mm; axilla to groin distance 26.7 mm; head length 13.2 mm; head width 8.8 mm; shank length 7.2 mm. Head scales smooth, glossy; rostral scale wider (2.4 mm) than long (1.4 mm), slightly higher than adjacent supralabials, in contact with frontonasal, nasoloreal, and first supralabials posteriorly; frontonasal wider (2.8 mm) than long (2.6 mm), widest posteriorly, in contact with nasoloreal and frenocular laterally, prefrontals posteriorly; nasoloreal suture present; prefrontals present, in contact with each other medially, in contact with fused anteriormost superciliary-anteriormost supraocular, frontal posteriorly; frontal slightly longer (2.3 mm) than wide (2.2 mm), anterior suture angular with point directed anteriorly, lateral sutures straight, posterior suture angular with point directed posteriorly, in contact with second and third supraocular laterally, frontoparietals posteriorly; frontoparietals pentagonal, in contact with third and fourth supraocular, parietals and interparietal posteriorly; supraoculars four, none in contact with ciliaries; superciliary series complete, anteriormost superciliary fused with anteriormost supraocular; interparietal pentagonal, longer (3.2 mm) than wide (1.7 mm), in contact with parietals laterally, postparietals posteriorly; parietals pentagonal, in contact with fourth supraocular anterolaterally, temporal scales laterally, dorsalmost postocular, postparietals posteriorly; postparietals three, lateral postparietals pentagonal, medial postparietal squarish; palpebral disc an undivided oval, unpigmented; frenocular quadrangular, in contact with nasoloreal anteriorly; postoculars three; temporals polygonal; supratympanic temporals three; supralabials eight; infralabials seven; mental wider (2.3 mm) than long (1.4 mm), in contact with first infralabials, postmental posteriorly; postmental single, pentagonal, posterior suture angular, point directed posteriorly, in contact with first and second infralabials; genials in two pairs, both pairs subquadrangular, in contact with second and third infralabials; posterior genials subpentagonal, in contact with fourth and fifth infralabials laterally; scale rows between genials and collar fold (along midventral line) 10; medialmost scales of three penultimate gular scale rows slightly enlarged; posteriormost gular row enfolded posteriorly, concealing two granular scale rows; lateral neck scales rounded, smooth.  Dorsal scales quadrangular, longer than wide, juxtaposed, keeled, 42 in a longitudinal count; some middorsal scales irregularly arranged; transverse dorsal count (enlarged rows at midbody) at fifth transverse ventral scale row 8, at 10th transverse ventral scale row 11, at 15th transverse ventral scale row 11; lateral scale rows at fifth transverse ventral scale row 13/12, at 10th transverse ventral scale row two, at 15th transverse ventral scale row two; lateral scales on body near insertion of forelimb small to granular; ventrals rectangular and juxtaposed; one complete longitudinal at ventral count 22; longitudinal ventral scale rows at midbody 12; 29 scales around midbody; anterior preanal plate scales six; posterior preanal plate scales four (third one not totally developed), all the scales at the same size; scales on tail rectangular and juxtaposed, keeled; midventral subcaudals squarish.  Limbs pentadactyl; digits clawed; forelimb reaching anteriorly to fourth supralabial; dorsal brachial scales polygonal, of varying sizes, subimbricate, smooth; midbrachial anterodorsal scale at least twice as large as adjacent scales, smooth; anteroventral, ventral, and posteroventral scales roundish, imbricate, smooth; antebrachial scales polygonal, of various sizes; medial antebrachial scales small, polygonal, smooth; dorsal manus scales polygonal, subimbricate; palmar scales small, oval, domelike; dorsal scales on fingers smooth, quadrangular, covering dorsal half of digit, overhanging supradigital scales, two on I, five on II, five on III, six on IV, four on V; subdigital scales four on I, seven on II, 9/10 on III, 7/8 on IV, seven on V; anterodorsal thigh scales polygonal, at least two times as large as adjacent scales, becoming smaller ventrally, smooth; posterodorsal thigh scales small, rounded, arranged irregularly; anterior and anteromedial shank scales roundish, subimbricate, smooth, anteriormost scales many times shorter than lateral, posterolateral, and posteromedial shank scales; lateral, posterolateral, and posteromedial shank scales polygonal or roundish, juxtaposed, smooth; dorsal pes scales polygonal, subimbricate, smooth; scales on dorsal surface of digits single, quadrangular, smooth, overhanging supradigital scales, two on I, 4/5 on II, eight on III, ten on IV, seven on V; subdigital scales single or double, four on I, nine on II, 12/13 on III, seventeen on IV, nine on V; femoral pores seven or eight; two scales between medial most femoral pores.  The completely everted hemipenis is an acapitate organ without a medial welt; apex with two large protrusions separated by the distal end of the sulcus spermaticus; sulcus spermaticus single, flounces lacking calcified spines and forming two chevrons on distal half of hemipenis; sulcate flounces about as wide as asulcate flounces; asulcate flounces becoming shorter distally, two in the basal half and ten, in each protrusion, distal chevrons separated by a small expansion pleat; sulcus spermaticus single, flanked by a broad naked expansion pleat widened distally.


Creative Commons Attribution 3.0 (CC BY 3.0)

© Germán Chávez, Karen Siu-Ting, Vilma Duran, Pablo J Venegas

Source: ZooKeys

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