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Parvoscincus abstrusus LINKEM & BROWN, 2013

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Higher TaxaScincidae, Sphenomorphinae, Scincoidea, Sauria, Squamata (lizards) 
Subspecies 
Common Names 
SynonymParvoscincus abstrusus LINKEM & BROWN 2013
Sphenomorphus decipiens — BROWN & ALCALA 1980: 186 (part)
Parvoscincus decipiens sp. 3 — LINKEM et al. 2011 
DistributionPhilippines (Luzon: Mt. Isarog, Mt. Malinao, Polillo Is.,Mt. Labo, Mt. Makiling)

Type locality: Philippines, Luzon Island, Laguna Province, Municipality of Los Baños, Mt. Makiling, 14.150° N, 121.231° E, elevation 783 m.  
Reproduction 
TypesHolotype: PNM 9783 (formerly KU 320071, A. C. Diesmos Field No. 4646); Male; Collected 11 January, 2009 by CWL.
Paratypes. Same locality as holotype: KU 320063, KU 320065–7 KU 326590–1, KU 330743, KU 331678–9 Females; KU 320068–70, KU 326588–9, KU 330744, KU 331676, KU 331680–1 Males. Polillo Island, Quezon Province: KU 304073 Female. Luzon Island, Camarines Norte Province, Municipality of Labo, Barangay Tulay Na Lupa, Mt. Labo: KU 313861, KU 313864 Females; KU 313859, KU 313868–9, PMNH 2087 Males. Luzon Island, Camarines Sur Province, Municipality of Naga City, Barangay Panicuason, Mt. Isarog: TNHC 62884–5 Females; TNHC 62883, TNHC 62886 Males. Luzon Island, Albay Province, Municipality of Tiwi, Barangay Banhaw, Mt. Malinao: TNHC 62887 Female; TNHC 62888 Male. Luzon Island, Albay Province, Municipality of Malinao, Barangay Tagoytoy, Mt. Malinao: TNHC 62896 Male; TNHC 62897–8 Females. 
CommentDiagnosis. Parvoscincus abstrusus sp. nov. can be identified by the following combination of characters: (1) A small body size (SVL at maturity 32–45 mm); (2) MBSR = 33–38; (3) PVSR = 58–69; (4) dorsal scales non- striated with weak apical pits or lacking apical pits; (5) apical pits on forelimbs and hind limbs; (6) four enlarged supraoculars; (7) anterior loreal divided laterally; (8) three preoculars; (9) and 15–19 Toe IV SDL.
Parvoscincus abstrusus sp. nov. is the sister species to P. decipiens sensu stricto, and closely related to P. agtorum sp. nov., P. jimmymcguirei sp. nov., and P. arvindiesmosi sp. nov. (Fig. 2). Parvoscincus abstrusus sp. nov. can be distinguished from P. jimmymcguirei sp. nov. by lacking or only having weak apical pits on dorsal scales (vs. multiple rows of apical pits on dorsal scales); by having two anterior loreals (vs. one anterior loreal); having a black throat in males and white throat in females (vs. white throat with dark brown mottling); dorsolateral band thin and weakly differentiated from flank color (vs. dorsolateral band broad and bordered dorsally and ventrally by white flecks).
Parvoscincus abstrusus sp. nov. can be distinguished from P. arvindiesmosi sp. nov. by the presence of a divided anterior loreal (vs. a single anterior loreal); by the presence of weakly developed apic pits on the dorsal scales or lacking apical pits (vs. multiple rows of apical pits on dorsal scales); having a black throat in males and a white throat in females (vs. a white throat in males and a light brown streaked throat in females); having a weak dorsolateral band (vs. a broad dorsolateral band that extends onto the dorsum).
Parvoscincus abstrusus sp. nov. can be distinguished from P. decipiens by the presence of two anterior loreals (vs. one anterior loreal); males having black throats and females having white throats (vs. throats white with a few light brown flecks); usually having more MBSR (33–36 vs. 30–34).
Parvoscincus abstrusus sp. nov. can be distinguished from P. agtorum sp. nov. by the presence of two anterior loreals (vs. one anterior loreal); smaller body size (32.02–43.27 vs. 44.91 mm); fewer paravertebrals (< 69 vs. 71); fewer midbody scale rows (33–36 vs. 39); dark throat in males and white throat in females; and a white line from the posterior of the eye to the forelimb (vs. a white line from posterior of eye to ear).

Habitat. Found under logs and in leaf litter in secondary growth forest. Males and females are found in abundance on Mt. Makiling outside of the Los Baños College campus. Breeding males and females have been collected in January. 
EtymologyThe specific epithet is an adjectival formation of the Latin participle abstrusus, meaning hidden, or concealed. 
References
  • LINKEM, CHARLES W.; RAFE M. BROWN 2013. Systematic revision of the Parvoscincus decipiens (Boulenger, 1894) complex of Philippine forest skinks (Squamata: Scincidae: Lygosominae) with descriptions of seven new species. Zootaxa 3700 (4): 501–533 - get paper here
 
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