Tag Archives: Borneo

Carcharhinus obsolerus White; Kyne & Harris

Lost Shark (Carcharhinus obsolerus)

The Lost Shark was described only in 2019, it is known only on the basis of three juvenile specimens of which the last one was captured in 1934, it apparently inhabited the coastal waters of some parts of the southern South China Sea.

The full size of the species is unknown because it is only known from juvenile specimens.

There are no recent records despite intensive searches on local fish markets and the species is most likely already extinct, having become a victim of overfishing. [1]

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Photo from: ‘William T. White; Peter M. Kyne; Mark Harris: Lost before found: A new species of whaler shark Carcharhinus obsolerus from the Western Central Pacific known only from historic records. PlosOne 14(1). 2019’

http://creativecommons.org/licenses/by-sa/4.0

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References:

[1] William T. White; Peter M. Kyne; Mark Harris: Lost before found: A new species of whaler shark Carcharhinus obsolerus from the Western Central Pacific known only from historic records. PlosOne 14(1). 2019

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edited: 15.01.2019

Saurauia minutiflora K. M. Wong

Small-flowered Saurauia (Saurauia minutiflora)

This species was described in 2017; it is a small, only about 3 m tall treelet that is known only from the type locality at the Sungai Berangan River in the Malaysian part of Borneo.

The only known locality has been affected by the development of the hydroelectric dam which led to the degradation of the forest.

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The photo below shows an unspecified congeneric species that was photographed on the island of Borneo, Indonesia.

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unspecified Saurauia species (Saurauia sp.)

photo: Shawn O’Donnell
https://www.inaturalist.org/people/shawnodonnell
https://creativecommons.org/licenses/by/4.0/

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edited: 20.02.2024

Vatica pentandra P. S. Ashton

(Vatica pentandra)

This species is only known from the type collection that was taken in 1955 at the Belayan River in the East Kalimantan Province of Borneo, Indonesia.

This area is now largely overrun by oil palm plantations, the species wasn’t found in recent surveys and might well be extinct.
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edited: 05.01.2024

Zapornia pusilla ssp. mira (Riley)

Bornean Crake (Zapornia pusilla ssp. mira)  

The Bornean Crake, described in 1938, is regarded to as a subspecies of Baillon’s Crake (Zapornia pusilla (Pallas)), but may in fact well represent a distinct species.  

The bird is known apparently only from the type specimen, a female that was collected in 1912 in the eastern part of Borneo.  

The Bornean Crake is more or less similar to Baillon’s Crake, but is smaller and differs somewhat in its coloration.  

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edited: 20.03.2018