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TWO NEW SPECIES OF PAROSPHROMENUS FROM INDONE­SIA DESCRIBED

Octo­ber 28 2021 the arti­cle describ­ing two new species from Indone­sia was pub­lished by our team sci­en­tist and field work man­ager Went­ian Shi, together with his team Shu­jie Guo, Hary­ono Hary­ono, Yijang Hong and Wan­chang Zhang. The arti­cle was pub­lished in the jour­nal Zootaxa and can be found here

Diag­noses of two new species of Parosphromenus (Teleostei: Osphrone­mi­dae) from Bangka Island and Kali­man­tan, Indonesia

Parosphromenus jueli­nae

P. jueli­nae occurs on the island of Bangka, which also is where P. deiss­neri and P. bin­tan occurs, though not in same loca­tions.

Its unpaired fin col­oration is sim­i­lar to that of P. deiss­neri,but it dif­fers from the lat­ter in hav­ing a rounded cau­dal fin with a non-​filamentous branched median ray and a smaller anal fin. Although the new species has the same cau­dal fin struc­ture as P. bin­tan, it can be dis­tin­guished from the lat­ter by its dis­tinct unpaired fin col­oration and the intense red color on the body flanks

This species is restricted to a few adjoin­ing for­est streams and swamps belong­ing to the same river sys­tem in Bangka, which are not con­nected with the habi­tats of P. bin­tan and P deiss­neri. The habi­tats are well–pre­served and rel­a­tively undis­turbed by human activ­i­ties. How­ever, the edge of the dis­tri­b­u­tion area of this species is now under grow­ing pres­sure from agri­cul­tural activ­i­ties. The swamp of the above-​mentioned col­lec­tion loca­tion in 2017 has been drained and con­verted into a paddy field in 2019; thus, likely extir­pat­ing the population.

Parosphromenus kishii

Parosphromenus kishii sp. nov. can be eas­ily dis­tin­guished from all other Parosphromenus by its unique red­dish cau­dal fin with an irreg­u­lar faint turquoise pat­tern and pointed rhom­bic shape.

Parosphromenus kishii sp. nov.is con­fined to a sin­gle river, which now func­tions as a nat­ural irri­ga­tion canal for a large oil-​palm plan­ta­tion. The habi­tat is extremely impacted. Any fur­ther works at the plan­ta­tion may lead to dredg­ing and expan­sion of this river, which may erad­i­cate the only known pop­u­la­tion of this species. Thus, fol­low­ing the IUCN Red List Cat­e­gories and Cri­te­ria (ver. 3.1), we pro­pose that this species be listed as Crit­i­cally Endan­gered B2ab (iii, v), based on its very restricted dis­tri­b­u­tion within a sin­gle river run­ning through an oil-​palm plan­ta­tion (<50 km2) with only a sin­gle known loca­tion and the extremely high like­li­hood of becom­ing extinct due to the poten­tial works of sur­round­ing oil-​palm plan­ta­tions. Imme­di­ate in-​situ or ex-​situ con­ser­va­tion is highly rec­om­mended for this species.

Parosphromenus jueli­nae habi­tat photo

Pho­to­graph of type local­ity of Parosphromenus jueli­nae in Bangka Island, a black water for­est peat swamp. Sept.2019

Source : Diag­noses of two new species of Parosphromenus (Teleostei: Osphrone­mi­dae) from Bangka Island and Kali­man­tan, Indonesia

Parosphromenus kishii habi­tat photo

Pho­to­graph of type local­ity of Parosphromenus kishii in Kali­man­tan Ten­gah, a clear water river run­ning through an oil-​palm plan­ta­tion, Apr. 2019.

Source : Diag­noses of two new species of Parosphromenus (Teleostei: Osphrone­mi­dae) from Bangka Island and Kali­man­tan, Indonesia

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Licorice Guramies, small labyrinth fishes of the genus Parosphromenus from the peat swamps in South East Asia.

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(Photo Copy­right 2018 Went­ian Shi)

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9 AUGUST 2022

We have decided to take away the log-​in and reg­is­tra­tion. The only rea­son we had a log in was because it was ness­esary in order to use forum. Theres no hid­den con­tent oth­er­wise on the home­page for ‘reg­is­tered only’.

Since the growth of face­book and face­book­groups, our forum has not been able to stay alive. For this rea­son we decided to turn off the abil­ity to write in forum, and cre­ate new posts. It is still pos­si­ble to search old posts in forum with­out log­gin in.

Phy­lo­ge­netic tree of Parosphromenus species based on cytb gene sequences and ML approaches

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Parosphromenus parvulus copyright Helene Schoubye Johansen

Parosphromenus spe­cial behav­iour. 1

Do all parosphromenus species stand on their head when flash­ing ? – some­one asked me the other day at a presentation.
No – they don’t.
It’s a pecu­liar thing, that most of the paro-​species we know do stand head down when flash­ing, yet we know of 3 species that do the oppo­site. When the males do their lit­tle dance in front of the female they stand head up.
These 3 species are ornat­i­cauda, parvu­lus from Bor­neo and suma­tranus from Sumatra.
Ornat­i­cauda and parvu­lus are nor­mally thought of as paro-​species that dif­fer from the oth­ers paro-​species, in not only this way, — but also in bodyshape, size and gen­eral demands.
Sci­en­tific work by Went­ian Shi, shown in this paper, also sug­gests .. .…..Read more and also the lat­est blogs here — Blog archive

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