Plougshare tortoise (angonoka tortoise)

Zoology with: Plougshare tortoise (angonoka tortoise)

Plougshare tortoise

The carapace is highly domed and light brown in colour with prominent growth rings on each scute. The outer parts of the vertebral is a darker brown. The gular scute of the plastron projects forward between the front legs and curves upward toward the neck.

Males are larger than females, reaching a carapace length up to 17 inches (43 cm).[11] Fully grown male angonoka tortoises are larger, as well as heavier, than females. The average length of an adult male angonoka tortoise is 414.8 millimetres (16.33 in) and the average weight is 10.3 kilograms (23 lb). Females measure at a 370.1 millimetres (14.57 in) average and weigh a 8.8 kilograms (19 lb) average.

In the wild this species is only found in Madagascar where it is endemic to the dry forests in the Baly Bay area of northwestern Madagascar, near the town of Soalala.

The population estimate for the angonoka tortoise in the wild is about 600 individuals, ranging from 440 to 770, but is still decreasing. The tortoise is at an extremely high risk of extinction; it is thought it will become extinct in the wild in the next 10 to 15 years. It can be found in five sub-populations, two east of the and three west of the Andranomavo river. The two to the east are Beheta and Sada; the three to the west are Ambatomainty, Andrafiafaly, and Betainalika.

This species is one of the rarest land tortoises in the world, classified as Critically Endangered on the IUCN Red List

Population size:
440 – 770 individuals
25-60km2 in Baly Bay region, northwestern Madagascar
Primary threats:
Illegal collection for international pet trade
Action required:
Enforcement of legal protection and protected area management

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