Philautus charius, RAO, 1937

Biju, S. D. & Bossuyt, Franky, 2009, Systematics and phylogeny of Philautus Gistel, 1848 (Anura, Rhacophoridae) in the Western Ghats of India, with descriptions of 12 new species, Zoological Journal of the Linnean Society 155 (2), pp. 374-444 : 402

publication ID

https://doi.org/ 10.1111/j.1096-3642.2008.00466.x

DOI

https://doi.org/10.5281/zenodo.5492413

persistent identifier

https://treatment.plazi.org/id/03F5945F-FFB7-1E5D-FEF6-FC35FAACC135

treatment provided by

Felipe

scientific name

Philautus charius
status

 

PHILAUTUS CHARIUS RAO, 1937 View in CoL

( FIGS 2 View Figure 2 , 14D View Figure 14 , 20 View Figure 20 ; TABLE 2)

Type material: Neotype, MNHN 1999.5597 About MNHN , an adult male, SVL 29.0 mm, from the hills around Chikmalagur (i.e. Chikmagalur), Chikmalagur district, Karnataka, India ( Bossuyt & Dubois, 2001).

Other material studied: BNHS 4420 View Materials and BNHS 4421 View Materials , two adult males, from Chikmagalur; BNHS 4422 View Materials and BNHS 4423 View Materials , two adult males, from Mercara; BNHS 4424 View Materials , an adult male, from Kottigehara; SDB 40213 , an adult male, from Muthodi ( Table 2).

Diagnosis: Philautus charius can be distinguished from known congeners by the following combination of characters: (1) medium male adult size (27.2– 31.4 mm, N = 7); (2) dorsum with small horny spinules; (3) groin and posterior part of thighs uniform brownish black with large yellow blotches; (4) short head (HL/ SVL = 0.309 –0.345, N = 7) GoogleMaps .

Philautus charius , P. coonoorensis sp. nov., and P. griet form a strongly supported clade in our phylogenetic analyses ( Fig. 2 View Figure 2 ). These three species can be easily differentiated from each other on the basis of the characters listed below.

Philautus charius : (1) medium male adult size (27.2–31.4 mm, N = 7); (2) snout shorter than, or subequal to the horizontal diameter of the eye; (3) groin brownish black with yellow blotches; (4) posterior surface of thighs uniform brownish black with large yellow blotches; (5) relatively short hindlimbs, ShL/ SVL ratio <0.5.

Philautus coonoorensis sp. nov.: (1) small male adult size (20.7–23.8 mm, N = 5); (2) snout clearly longer than horizontal diameter of the eye; (3) groin light grey with dark-brown patches; (4) posterior surface of thighs dark brown with variable size of grey patches; (5) relatively long hindlimbs, ShL/SVL ratio> 0.5.

Philautus griet : (1) small male adult size (19.7– 22.4 mm, N = 5); (2) snout shorter than, or subequal to the horizontal diameter of the eye; (3) groin light brown with minute white marbling; (4) posterior surface of thighs brown with minute grey spots; (5) relatively short hindlimbs, ShL/SVL ratio <0.5.

Description of the neotype: A detailed description was published in Bossuyt & Dubois (2001).

Variation: Measurements are given in Table 2.

Colour variation in life: dorsum usually light brown with various numbers of deep-brown irregular patches, a brown stripe between the eyes demarcates a triangular grey snout, loreal and tympanic regions light brown with black spots, a pair of greyish brown concave bands extending from below the level of the eye to the groin ( Fig. 20 View Figure 20 ); iris light brown, encircled with thin greyish outer ring. Dorsal side of limbs with dark-grey cross bands. However, the groins and posterior part of the thighs are invariably uniform brownish black with large yellow blotches.

Distribution and natural history: Chikmagalur, Muthodi, Mercara, and Kottigehara in Karnataka ( Fig. 14D View Figure 14 , Table 1). These frogs mostly call from about 0.5 to 1.5-m high on the stems of shrubs.

Kingdom

Animalia

Phylum

Chordata

Class

Amphibia

Order

Anura

Family

Rhacophoridae

Genus

Philautus

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