|
The Amboina box turtle (''Cuora amboinensis''), or southeast Asian box turtle is a species of Asian box turtle. It is found in the Nicobar Islands, eastern India (Assam), Bangladesh, Myanmar, Thailand, Cambodia, Laos, central and southern Vietnam, west Malaysia, Singapore, Philippines (Leyte, Luzon, Mindanao, Samar, Negros, Panay, etc.), Indonesia (Sulawesi, Ambon Island, Sumatra, Borneo, East Malaysia, Brunei, Nias, Enggano, Simeulue, Java, Sumbawa, Halmahera, Ceram, Seram, Buru, East Timor, Bali, Palawan and Maluku), and possibly China(Guangxi and Guangdong) and Sri Lanka. The type locality is "Amboine" (or "Amboina") Island, today Ambon Island in Indonesia. ==Description== These turtles have blackish-brown to olive brown colored shells that are not as ornate as many other box turtles. All have a blackish olive head with three yellow stripes on the side. The male can be identified by the slightly concave shape to its plastron. There is no specific pattern to what the underbellies may look like, for either sex. The only true way of telling age is to guess by the texture of the shell, as growth rings form irregularly. There are four subspecies that are primarily differentiated by differences in the color and shape of the carapace:〔Filella (1997); measurements taken at the LCRC 2006-SEP-20.〕 * ''Cuora amboinensis amboinensis'' (Wallacean Box Turtle) – eastern Indonesian islands: Ambon Island, Sulawesi, the Moluccas, Buru, Seram, and East Timor and smaller islands in the region. :Have a quite flat shell with a flared marginal scutes. The plastron have a bigger black spots coloration, and possesses a bigger head. Well adapted for an aquatic lifestyle. For individuals suspected to be of this subspecies: Ratio of carapace length / height: 3.08. Average ratio dimensions of plastron spots: 1.21 (almost circular) * ''Cuora amboinensis couro'' (West Indonesian Box Turtle) (Schweigger, 1812)〔(''Cuora amboinensis'' ), The Reptile Database〕 – south Indonesian islands: Sumatra, Java, Bali and Sumbawa. :Moderate domed carapace, some individual possesses a flared marginal scutes. The plastron shows black markings on every plastral scutes, Darker in Coloration, more oval black spots on plastron. * ''Cuora amboinensis kamaroma'' (South East Asian Box Turtle) Rummler & Fritz, 1991〔 – Malayan box turtle or domed Malayan box turtle. Mainland Indochina (South and Central Vietnam, southern Laos & Cambodia), Thailand (Phang Nga Province etc.), Singapore and mainland Malaysia and Borneo. :High domed carapace and smaller, more elongated and less spotting of black pigments in the plastron. have smaller and shorter tail compared to other subspecies. do not have any flare in the marginal scutes. Average ratio of carapace length / height: 2.82. Average ratio dimensions of plastron spots: 2.14 (small and elongated) * ''Cuora amboinensis lineata'' (Burmese Box Turtle) McCord & Philippen, 1998〔 – Myanmar. :Resembles to ''Cuora amboinensis kamaroma'', but in the carapace there is a bright colored mid-dorsal line, and sometimes a bright colored lateral line. The plastral are possesses large black spotting of black similar to the ''Cuora amboinensis couro''. Several distinct populations are believed to represent up to 4 more subspecies, or at least striking varieties.〔Vetter & Van Dijk (2006)〕 * Nicobar Islands * Eastern India (Assam), Bangladesh, and possibly Sri Lanka * Borneo, the Malaysian Islands, Brunei, and Palawan * Philippines (Leyte, Luzon, Mindanao, Samar, Negros, Panay, etc.) amboinensis5.jpg|''C. a. kamaroma'' from Thailand amboinensis1.jpg|Plastron of ''C. a. kamaroma'' ambonensis4.jpg|''C. a. lineata'' from Myanmar Cuora amboinensis 3 male.jpg|''C. amboinensis'' "Philippines population" from Leyte ''C. a. kamaroma'' has hybridized in captivity with the Vietnamese pond turtle – a species nearly extinct in the wild – and with males of the Chinese pond turtle (''Chinemys reevesii'').〔Fritz & Mendau (2002), Galgon & Fritz (2002), Buskirk et al. (2005)〕 Other hybrids are known, like ''C. amboinensis × Cuora trifasciata''.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Amboina box turtle」の詳細全文を読む スポンサード リンク
|