Tag Archives: Malaysia

Aglaia densitricha Pannell

Densely-haired Aglaia (Aglaia densitricha)

This species was described in 1992, it is known only from the type material which had been collected in 1953 along a road in the state of Terengganu, Malaysia.

The species was not found since and is thought to might be extinct. [1]



[1] D. J. Mabberley; C. M. Pannell; A. M. Sing: Meliaceae. Flora Malesiana; Series 1 – Spermatophyta 12: 1-388. 1995


edited: 04.09.2019

Xenophidion schaeferi Günther & Manthey

Schäfer’s Spiny-jawed Snake (Xenophidion schaeferi)

Schaefer’s Spiny-jawed Snake was described in 1995; it is, however, known from a single specimen that was collected in Hutan Lipur Templer, a forest reserve in the Gombak District of Selangor, Malaysia.

The species was apparently never found since; it is officially treated as “Data Deficient” but, given the ongoing destruction of many forests around the world, might well be already extinct.


edited: 22.01.2022

Begonia eiromischa Ridl.

Wooly-stalked Begonia (Begonia eiromischa)

The Wooly-stalked Begonia, described in 1917, was restricted to the small island Pulau Betong, Malaysia, it is known only from two collections made in 1886 and 1898.

The habitat is now completely destroyed and this species is definetly extinct.


Depiction from: ‘Henry Nicholas Ridley: The flora of the Malay Peninsula. London, L. Reeve & Co. ltd. 1922-25’

(not in copyright)


edited: 04.09.2019

Opisthostoma decrespignyi H. Adams

De Crespigny’s Karst Snail (Opisthostoma decrespignyi)  

This minute species, whose shell hardly reaches 0,2 cm, was described in the year 1865.  

De Crespigny’s Karst Snail inhabited small islets like Pulau Burung, Pulau Daat, and Pulau Papan offshore the island state of Labuan, which again lies offshore Borneo’s northwest coast, where it was strictly restricted to limestone rocks.  

The limestone (of all these islands ?) was removed in the 1960s by quarrying, and thus the habitat of this snail species was destroyed. [1]  


De Crespigny’s Karst Snail is now considered possibly extinct – however, there have been no recent surveys to confirm this assumption.  


[1] Reuben Clements; Navjot S. Sodhi; Menno Schilthuizen; Peter K. L. Ng: Limestone Karsts of Southeast Asia: Imperiled Arks of Biodiversity. BioScience 56(9): 733-742. 2006 


Depiction from: ‘Henry Adams: Descriptions of Six New Species of Shells, and Note on Opisthostoma de-Crespignii. Proceedings of the Zoological Society of London. 445-451. 1866’

(public domain)


edited: 04.11.2020

Petaurillus emiliae Thomas

Lesser Pygmy Flying Squirrel (Petaurillus emiliae)

The Lesser Pygmy Flying Squirrel was described in 1908 based on a single specimen that was collected in 1901 in Sabah, northern Borneo.

It is the smallest of the three species within its genus, reaching a full size of about 14 cm (including the tail).

The species was never found since its description and, probably being restricted to intact forest habitats, may now be extinct since large areas in the region have been converted into oil palm plantations. 


edited: 29.05.2019