Hemidactylus Oken 1817
Creators: name: Giri, Varad B.
name: Bauer, Aaron M.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Reptilia
Squamata
Gekkonidae
Hemidactylus

description: Key to the genus Hemidactylus Oken, 1817 from India
Modified after Smith (1935). Excludes H. mahendrai, the validity of which has been questioned (see Zug et al. 2007) but does include H. karenorum, which may not actually occur within the borders of India (Mahony & Zug, 2008).
1a. Digits narrow or moderately dilated with undivided transverse lamellae, or with only distal lamellae divided or deeply notched........................................................................................................................2
1b. All but single terminal lamellae paired....................................................................................................6
2a. All subdigital lamellae undivided ........................................................................................ anamallensis
2b. Only distal lamellae divided or notched; free distal phalanx of each digit less than half the length of its associated subdigital pad; femoral pores absent.....................................................................................3
3a. Median subcaudal scales forming a series of transversely enlarged plates; dorsal granules small, irregu- lar, intermixed with 10 to 12 longitudinal series of more or less oval strongly keeled tubercles; dorsum with quadrangular spots ................................................................................................................ gracilis
3b. Tail venter without transversely enlarged plates.....................................................................................4
4a. Original tail clearly divided into segments; dorsum with dark reticulations .......................... reticulatus
4b. Original tail not obviously segmented; dorsum without dark reticulations............................................5
5a. Dorsal granules small, intermixed with irregularly arranged, enlarged tubercles; back and tail cross- banded with light streaks; maximum SVL 36 mm .............................................................. albofasciatus
5b. Dorsal granules small, intermixed with irregularly arranged, enlarged tubercles; back with four stripes and transversely arranged spots; maximum SVL 46 mm .......................................... sataraensis sp. nov.
6a. Digits relatively narrow; scales of dorsum uniform, imbricate, slightly elongated, striated and feebly keeled ....................................................................................................................................... scabriceps
6b. Digits moderately to broadly dilated; dorsal scales not imbricate...........................................................7
7a. Dorsum with numerous, strongly keeled, enlarged tubercles arranged in more or less regular longitudi- nal series..................................................................................................................................................8
7b. Dorsal tubercles absent or, if present, rounded, smooth, or feebly keeled, not regularly arranged......14
8a. Males with precloacal pores only............................................................................................................9
8b. Males with precloacal-femoral pores.....................................................................................................10
9a. 12–14 lamellae under the fourth toe; 9–13 precloacal pores in males ......................................... persicus
9b. 10–11 lamellae under the fourth toe; 6 precloacal pores in males .................................... porbandarensis
10a. Very large (> 100 mm SVL); subdigital lamellae in straight, transverse series 9–10 lamellae under first toe; dorsal tubercles large, trihedral, arranged in ~20 fairly longitudinal series ..................... maculatus
10b. Small to moderately sized (<85 mm SVL); subdigital lamellae in oblique series; 8 or fewer lamellae under first toe........................................................................................................................................11
11a. Dorsum with enlarged trihedral dorsal tubercles; dorsal pattern with transverse markings.................12
11b. Dorsal tubercles conical, keeled, or subtrihedral; dorsal pattern of spots or blotches..........................13
12a. 7–10 lamellae under the fourth toe; 7–8 infralabials .................................................................... triedrus
12b. 12 lamellae under the fourth toe; 10 infralabials .................................................................... subtriedrus
13a. Digits distinctly webbed at base, males with 17–20 precloacal-femoral pores on each side; dorsal pat- tern of white spots on a dark background ................................................................................... prashadi
13b. Digits not webbed, males with 7–16 precloacal-femoral pores on each side; dorsal pattern of dark spots or blotches on a pale background .................................................................................................. brookii
14a. Digit I of manus half or less the length of digit II.................................................................................15
14b. Digit I of manus more than half the length of digit II............................................................................17
15a. Tail weakly depressed, without denticulate lateral edge; male with a continuous series of 26–36 preclo- acal-femoral pores; 9–10 lamellae under fourth toe ..................................................................... frenatus
15b. Tail strongly depressed, with sharply denticulated lateral edge; males (when present) with medial inter- ruption of precloacal-femoral pore series; 11–13 lamellae under fourth toe........................................16
16a. Dorsum with uniform small granules; second postmentals do not contact infralabials; all-female species ...................................................................................................................................................... garnotii
16b. Dorsum with small granules and numerous larger rounded tubercles; second postmental contact infrala- bials; males with 18–20 precloacal-femoral pores on each side ............................................. karenorum
17a. Tail and sometimes body dorsum with enlarged tubercles ....................................................................18
17b. Dorsum and tail lacking enlarged dorsal tubercles................................................................................20
18a. Dorsal scalation of small granules, intermixed with 18–20 rows of irregularly arranged enlarged tuber- cles; 11–13 lamellae under fourth toe; 15–19 femoral pores on each side in males ............... aaronbaueri
18b. Enlarged tubercles (if present), few, scattered.......................................................................................19
19a. 9–11 lamellae under the fourth toe; 10–17 femoral pores on each side ............................... leschenaultii
19b. 11–14 lamellae under the fourth toe; 5–7 femoral pores on each side ..................................... flaviviridis
20a. 13–15 lamellae under the fourth toe; 18–22 femoral pores on each side in males; SVL to 115 mm .................................................................................................................................................................... giganteus
20b. 9–11 lamellae under fourth toe; 12–15 femoral pores on each side in males; SVL to <60 mm bowringii *
description: Published as part of Giri, Varad B. & Bauer, Aaron M., 2008, A new ground-dwelling Hemidactylus (Squamata: Gekkonidae) from Maharashtra, with a key to the Hemidactylus of India, pp. 21-34 in Zootaxa 1700 on pages 31-33, DOI: 10.5281/zenodo.180794