Sigaloseps deplanchei (BAVAY, 1869)
Can you confirm these amateur observations of Sigaloseps deplanchei?
|Higher Taxa||Scincidae, Eugongylinae, Scincoidea, Sauria, Squamata (lizards)|
|Synonym||Lygosoma deplanchei BAVAY 1869: 23 (non L. Deplanchei BOCAGE 1873)|
Hinulia tetragonorus GÜNTHER 1872: 420
Lygosoma (Sphenomorphus) deplanchi [sic] — SMITH 1937: 220
Leiolopisma deplanchei — ZUG 1985
Sigaloseps — SADLIER 1987
Sigaloseps deplanchei — BAUER & VINDUM 1990
Sigalospes deplanchei — ADLER, AUSTIN & DUDLEY 1995 (in error)
Sigaloseps deplanchei — BAUER & SADLIER 2000
Sigaloseps deplanchei — SADLIER et al. 2014
|Distribution||New Caledonia (endemic to moist, closed forest in the ultramafic block in the southern third of the island)|
Type locality: “Nouvelle-Calédonie” (by implication).
|Types||Lectotype: BMNH 126.96.36.199 (designated by Sadlier 1986)|
Holotype: BMNH 188.8.131.52, adult male [Hinulia tetragonurus]
|Diagnosis||Diagnosis (genus): The species of Sigaloseps are small in size with a maximum snout-vent length of 38.5 mm for S. pisinnus n. sp. to 60 mm for S. ruficauda s.s., have a stout body, moderately well developed limbs and digits, and a short (~100% of SVL for S. deplan- chei s.s.) to moderately long tail (150% for S. ruficauda s.s.). The ear opening is moderately large and *lacks obviously enlarged lobules around the anterior edge [*denotes apomorphic character states within the Eugongylus group as defined by Sadlier, (2010)] [SADLIER et al. 2014].|
Diagnosis: The following features of coloration and scalation in combination will distinguish Sigaloseps deplanchei s.s. from all other species of Sigaloseps (except S. conditus n. sp.): small adult size, maximum SVL of 46 mm for males and 45 mm for females; subocular upper labial usually in contact with the lower eyelid; paravertebral scale rows 49-56; 4th toe lamellae scales 23-28; tail length ~100%SVL; underside of body and tail yellow and without obvious brown or black markings ; dorsal and lateral surface of tail usually brown to dull orange. Sigaloseps deplanchei s.s. is most similar in morphology to Sigaloseps conditus n. sp., with no obvious differences in scalation other than the absence of a well developed row of subocular scales in most S. deplanchei.
These characters allow Sigaloseps deplanchei s.s. to be distinguished from its congeners as follows:
- from Sigaloseps conditus n. sp. in having the subocular upper labial usually in contact with the lower eyelid (vs
separated from the lower eyelid by a well developed row of subocular scales.
- from Sigaloseps pisinnus n. sp. by its larger adult size (maximum SVL 46 vs 38 mm), shorter tail (mean = ~100% vs 126%
of SVL), a duller overall tail color (usually brown to dull orange vs bold reddish-brown), and in having a uniformly
pale underside to the tail (vs spotted with small brown blotches).
- from Sigaloseps ruficauda by its smaller adult size (maximum SVL 46 vs 60 mm), fewer paravertebral scales (49-56
vs 53-60), shorter tail (mean ~100% vs 150% of SVL) and duller overall color to the tail (usually brown to dull orange
vs bright reddish).
- from Sigaloseps ferrugicauda n. sp. by its smaller adult size (maximum SVL 46 vs 60 mm), fewer paravertebral scales
(49-56 vs 53-60).
- from Sigaloseps balios n. sp. by its smaller adult size (maximum SVL 46 vs 50 mm), shorter tail (mean = ~100% vs
128% of SVL), paler yellow ventral coloration (dull yellow vs bold enamel yellow, and paler tail color (usually brown
to dull orange vs nearly black).
The genetic data provides strong support for the monophyly of a widespread Sigaloseps deplanchei s.s., which is
strongly differentiated from all its congeners (see Table 1). In particular, it places Sigaloseps deplanchei s.s. within a well supported subgroup that includes the species in the S. ruficauda group as its sister, rather than with the morphologically similar Sigaloseps conditus n. sp. [SADLIER et al. 2014].
|Comment||Abundance: Common where it is found.|
Type Species: Lygosoma deplanchei BAVAY 1869 is the type species of the genus Sigaloseps SADLIER 1986.
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