Gekko yakuensis MATSUI & OKADA, 1968
Can you confirm these amateur observations of Gekko yakuensis?
|Higher Taxa||Gekkonidae, Gekkota, Sauria, Squamata (lizards: geckos)|
|Common Names||E: Yakushima Gecko|
|Synonym||Gekko yakuensis MATSUI & OKADA 1968|
Gekko yakuensis — KLUGE 1993
Gekko yakuensis — OTA 1989: 235
Gekko yakuensis — RÖSLER 2000: 82
Gekko (Japonigekko) yakuensis — WOOD et al. 2019
|Distribution||Japan (Kyushu, NE Ryukyu Islands: Yakushima, Tanegashima)|
Type locality: Anbo, Yakushima, Ryukyu Archipelago.
|Types||Holotype: JSC *** #522, adult female (cited in original description like this, with asterisks etc., Japan Snake Center, Yabuduka-cho Ota, Gunma Prefecture, Japan)|
|Comment||Gekko hokouensis occasionally hybridizes with Gekko yakuensis (Toda et al. 2001).|
Although G. yakuensis strongly resembles G. hokouensis, it can be discriminated from the latter by possessing a distinctly enlarged internasal as compared to the immediately posterior scales (as large as or slightly larger than in G. hokouensis) and paired apical tubercles, each located anterior to the caudal annular groove, throughout the original tail (absent, or present but usually less than four and rarely eight in the basal region of the original tail in G. hokouensis) [Shibata et al. 1981].
However, Okada (1998), by examining morphological characters of 31 Gekko specimens from southern Kyushu, stated that the conditions of both the internasal and the paired caudal tubercles varied more or less continuously among them, and that seven of the specimens remained unidentified due to the possession of combinations of character states inconsistent with Shibata’s (1981) diagnoses.
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