Potamites hydroimperator CHÁVEZ, MALQUI & CATENAZZI, 2021
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Potamites hydroimperator
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| Higher Taxa | Gymnophthalmidae (Cercosaurinae), Sauria, Gymnophthalmoidea, Squamata (lizards) |
| Subspecies | |
| Common Names | |
| Synonym | Potamites hydroimperator CHÁVEZ, MALQUI & CATENAZZI 2021 Potamites ecpleopus – Torres-Carvajal et al. 2016: 70. |
| Distribution | Peru (Huánuco) Type locality: Departamento de Huánuco, Puerto Inca Province, El Sira Communal Reserve, Campamento Hospital (on the trail to the top of El Sira Communal Reserve); 9.478667° S, 74.778139° W; 757 m a.s.l. |
| Reproduction | |
| Types | Holotype: CORBIDI 13915, adult male; 28 Nov. 2013; G. Chávez leg.; (Figs 2, 4A–B, 7A). Paratypes (n = 4): PERU • 1 adult female; same locality data as for holotype; 21 Mar. 2014; G. Chávez and J. Malqui leg.; Genbank accession code KU902066; CORBIDI 14382 • 2 adult males; Departamento de Huánuco, Puerto Inca Province, El Sira Communal Reserve, Campamento Caoba (on the trail to the top of El Sira Communal Reserve); 9.502194° S, 74. 80425° W; 545 m a.s.l.; 28 Mar. 2014; G. Chávez and J. Malqui leg.; CORBIDI 14468 to 14469 (Figs 3A–D, 5A–B) • 1 adult female; same collection data as for preceding; CORBIDI 14470 (Fig. 3E–F). |
| Diagnosis | Diagnosis: A medium-sized Potamites (SVL = 50.5–59.6 mm, n = 5) characterized by the following combination of morphological features: 1) Body slender, slightly depressed laterally, maximum SVL in males 59.6 mm, 51.6 mm in females; 2) head acuminate from dorsal and lateral view, scales on the dorsal surface of the head smooth; 3) frontonasal divided, shorter than frontal, small rounded azygous scale usually present between frontonasal and prefrontals; 4) prefrontals present; 5) frontal present; 6) loreal present, romboid, not in contact with supralabials; 7) nasal partially divided, behind the nostril; 8) supraoculars four, anteriormost not fused with anteriormost superciliar; 9) superciliar series complete, usually five, occasionally four; 10) supralabial-subocular fusion absent; 11) lower palpebral disc oval, transparent, not divided; 12) postoculars three; 13) postparietals 10–11; 14) hemipenis in two pairs, transverse sutures perpendicular with respect to midline of body; 15) dorsals rectangular, subimbricate, granular and keeled; 16) 34–36 longitudinal rows of dorsal keeled scales, 2–3 granular scales between the two paravertebral rows of keeled dorsals; 17) flanks partially covered by subconical low tubercles, absent or poorly present above the insertion of forelimbs; 18) anterolateral and dorsal brachial scales of forelimbs smooth or slightly keeled; 19) 32–36 scales around midbody; 20) 21–22 longitudinal rows of ventral scales; 21) 32– 33 total femoral pores in males, two in females, two scales between femoral pores; 22) 14–16 subdigital scales on 4th finger; 23) 21–24 on 4th toe; 24) forelimb reaching anteriorly the fourth supralabial; 25) tail slightly compressed with three rows of lateral scales per two ventral caudals; 26) hemipenis globose (Supp. file 5), lobes indistinct from hemipenial body; 27) hemipenial flounces chevron shaped, lacking calcified spines, laterally oriented and forming two chevrons on distal half of hemipenis while its basal half is covered with four transverse flounces, separated by a small expansion pleat; sulcate flounces about as wide as asulcate flounces; isolated transversal flounces on proximal-central region of asulcate face absent; distal filiform appendages on the hemipenial lobes absent, sulcus spermaticus single; 28) dorsum yellowish brown to dark brown with slightly darker irregular blotches; 5–8 lateral ocelli with a creamy yellow center on each flank in males, a single ocellus with a pale brown center at the level of the insertion of forelimbs on each flank in females; flanks yellowish brown or partially pigmented of vermilion red in adult males; a creamy white to yellow diagonal stripe (continuous or discontinuous) going from 4th or 5th supralabials to 5th infralabial; ventral coloration in males vermilion red to reddish pink on belly and base of the tail, yellowish pink on ventral surface on limbs, pale blue to grayish blue on ventral surface of the neck and throat, saffron yellow on femoral pores; ventral coloration in females creamy yellow on throat, chest, belly, ventral surface of limbs and base of the tail, with black speckling on throat; ventral surface of the rest of the tail yellowish brown to dark brown in males and females; pupil black surrounded by a yellowish orange to copper ring, iris olive to yellowish brown (CHÁVEZ et al. 2021). |
| Comment | |
| Etymology | The specific epithet ʻhydroimperatorʼ derives from the Greek word ʻhydroʼ (ʻwaterʼ), and the Latin name ʻimperatorʼ (ʻemperorʼ). The name alludes to the riparian habits of the new species, which is the only lizard in El Sira using the streams as part of its habitat. |
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