Lygodactylus heterurus BOETTGER, 1913
Can you confirm these amateur observations of Lygodactylus heterurus?
|Higher Taxa||Gekkonidae, Gekkota, Sauria, Squamata (lizards: geckos)|
|Subspecies||Lygodactylus heterurus trilineigularis RÖSLER 1998|
Lygodactylus heterurus heterurus BOETTGER 1913
|Common Names||Boettger's Dwarf Gecko|
|Synonym||Lygodactylus heterurus BOETTGER 1913|
Lygodactylus heterurus — KLUGE 1993
Lygodactylus heterurus — GLAW & VENCES 1994: 282
Lygodactylus (Lygodactylus) heterurus — RÖSLER 2000: 93
Lygodactylus heterurus — RÖLL et al. 2010
Lygodactylus heterurus trilineigularis RÖSLER 1998
Lygodactylus heterurus trilineigularis — PUENTE et al. 2009
|Distribution||Madagascar, Nossi Be = Nosy Bé|
trilineigularis: only known from the type locality: Ampahana, NE Madagascar.
Type locality: Nosy Bé, NW Madagascar
|Types||Holotype: SMF 8953|
Holotype: MTKD D39054 [trilineigularis]
|Diagnosis||Diagnosis. Lygodactylus heterurus is characterized as a member of the L. verticillatus group as defined above by its clearly whorled tail. It is distinguished from L. arnoulti, L. decaryi and L. verticillatus by having 3–5 distinct longitudinal black stripes on the throat (vs. no black lines on throat). L. blancae and L. klemmeri also show black lines on throat, but these are only present in some specimens and then rather diffuse in L. blancae (vs. always present and very distinct in L. heterurus), and they are slightly diagonal, directed towards the center of the throat in L. klemmeri (vs. not diagonal in L. heterurus). Another species with black lines on the throat, here not assigned to the L. verticillatus group, is L. ornatus; in this species, the throat lines are transversal, and L. ornatus in addition differs by its non-whorled tail. L. heterurus further differs from L. arnoulti and L. blancae by its white ventral colour in life (vs. mostly yellowish to deep yellow, especially in males); from L. decaryi by a lower number of preanal pores in males (9–11 vs. 15); from L. verticillatus by the grey dorsal colour with pairs of light grey markings (vs. more brownish colour without pairs of light markings); and from L. klemmeri by a dorsal pattern of pairs of light markings (vs. absence of such markings).|
According to Rösler (1998), the main difference between the subspecies trilineigularis and the nominate subspecies are the number of black lines on the throat (three indistinct vs. five distinct). Other differences are extended dark pigment in preanal region, fewer supralabials and infralabials, fewer longitudinal vertebral scales, and fewer scales between eyes, but these are based on the comparison of only two vs. three type specimens. Puente et al. (2009) did not examine the type specimens of neither heterurus nor trilineigularis, but found some specimens from other localities difficult to assign to either of these forms: for example, specimens from Sambava, near the type locality of trilineigularis, agreed with that subspecies in showing rather indistinct gular stripes, although more than three were recognizable (Fig. 3g), and a largely dark pigmented preanal region (see figure on p. 385 of Glaw & Vences 2007).
|Comment||Habitat. According to Rösler (1998), this species lives in trees in dry forest in north-western Madagascar as well as in humid areas of the North East.|
|Etymology||no information given in original description.|
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