(Cherating-Form, Foto: M. Hallmann)

Schaller 1985

First descrip­tion: Parosphromenus nagyi spec.nov., ein neuer Pracht­gu­rami aus Malaysia (vor­läu­fige Mit­teilung). Die Aquar­ien– und Terrarien-​Zeitschrift 38; 301303.

Char­ac­ter­is­tics: Over­all length max. 4.0 cm. Fin for­mula: Dor­sal: XI-​XIII, 57, total 1619, Anal: XI-​XIII, 811, total 2023. ♂ nup­tial col­oration resem­bles only P.ornaticauda or P.parvulus; the pat­tern is com­pletely dif­fer­ent from other species: a hor­i­zon­tal two-​part coloura­tion, below black­ish, top dark to golden brown. Also the very short look­ing cau­dal, in which the fin rays exceed the fin area by about 1mm of and where the turquoise edge appears fur­ther for­ward, is char­ac­ter­is­tic of this species.

This fea­ture is there­fore less clear for the ♀. Unusu­ally short fil­a­ments of the ven­tral fins, which show a dark spot are also very typ­i­cal for both sexes. — Two habi­tat types are known in which the males are eas­ily dis­tin­guish­able by the eye-​catching band in the tail: in the form of terra typ­ica (Form “Kuan­tan”) this is white, and thus shows a dif­fer­ent colour as the blue rib­bons in dor­sal and anal. In the north­ern form “Cher­at­ing” the band is blue as well. In addi­tion the above-​described exten­sion of the tail fin rays is less clear in this form, and there­fore the cau­dal appears to be longer. “Kuan­tan” males also carry a sig­nif­i­cant dark spot in the rear part of the dor­sal fin.

Sim­i­lar species: when the males show courtship colours, they can­not be con­fused with other species. In nor­mal colours males are still dis­tin­guish­able by their mor­pho­logic dif­fer­ences. The risk of con­fu­sion is higher for the females, because mor­pho­log­i­cal dif­fer­ences are less sig­nif­i­cant, but on close obser­va­tion they are still eas­ily identifiable.

Occurence/​Distribution: Ranges of the east coast of West­ern Malaysia. The species has a rel­a­tively large area of dis­tri­b­u­tion; it is found from Pekan in the south going north via Kuan­tan and Cher­at­ing up to the area north of Cukai.

Threat: High. Although the species has a large dis­tri­b­u­tion area, most of the nat­ural habi­tats have been mas­sively altered by human activ­i­ties. Nowa­days the fish is found mainly in remain­ing resid­ual habi­tats and road­side canals that are still fed by rem­nants of for­mer black water swamps.

Discovery/​First import: to Europe by Peter Nagy of Felsö Gör (Salzburg/​Austria) in 1979; Schaller named the species after its dis­cov­erer (Kuantan-​form). Later it has been imported again at sev­eral occa­sions, e.g. to Switzer­land in 1985 by Krum­me­n­acher. The Cherating-​form was imported to Europe for the first time in 2000 by M. Hallmann.

Trade: rarely in trade today; only the Kuantan-​form. The aquar­ium stock depends almost com­pletely on pri­vately imported fish.

Care /​Breed­ing: Sim­i­lar to other licorice gouramis.

Behav­iour /​Par­tic­u­lar­i­ties: Head-​down-​courtship. Small foam nest. Because of its spec­tac­u­lar nup­tial plumage this is a very sought-​after, attrac­tive species.

Parosphromenus nagyi Cherating

Parosphromenus nagyi cherating Copyright C. HinzParosphromenus nagyi cherating Copyright C. HinzParosphromenus nagyi cherating Copyright Lars IversenParosphromenus nagyi cherating Copyright Lars IversenParosphromenus nagyi cherating female Copyright Lars IversenParosphromenus nagyi Cherating form Copyright Martin Hallmann

Parosphromenus nagyi Kuantan

Parosphromenus_nagyi_kuantanform_Vierke.jpgParosphromenus nagyi Kuantan Copyright Helene Schoubye

Parosphromenus nagyi Pekan Nenasi

Parosphromenus nagyi Pekan Nenasi Copyright RickParosphromenus nagyi Pekan Nenasi Copyright RickParosphromenus_nagyi_pekan_nenasi_Rick3.jpegParosphromenus nagyi Pekan Nenasi Copyright RickParosphromenus nagyi Pekan Nenasi Copyright Rickparosphromenus nagyi pekan nenasi Copyright RickParosphromenus nagyi Pekan Nenasi Copyright Rick

Biotope of parosphromenus nagyi

Biotop of parosphromenus nagyi south of Kuantan Copyright C. HinzBiotop of parosphromenus nagyi in Cherating Copyright C. Hinz

Parosphromenus nagyi breed­ing. A photo serie of Marcin Chyla

Parosphromenus nagyi  breedingi Copyright Marcin ChylaParosphromenus nagyi breeding Copyright Marcin ChylaParosphromenus nagyi eggs Copyright Marcin Chyla

A fan­tas­tic photo serie of a Parospho­me­nus nagyi pair spawn­ing cap­tured by David Jones.


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