Kalataw atawa kelataw adalah ngaran iwak halus genus Betta nang macam-macam belangnya, sifatnya agrésif dalam mampartahanakan wilayahnya. Marga dari itu, iwak ini rancak dijadi'akan iwak aduan. Iwak ini nahap batahan hidup dalam waktu lawas. Biar inya diandak dalam volume banyu nang sahikit wan kada pakay alat sirkulasi udara (aerator) gén inya kawa tatap batahan hidup. Ini marga iwak ini tamasuk golongan anabantoida, nang artinya inya kawa mahinak udara atmosfér mamakay organ unik bangaran labyrinth.

Spésiés 

 Akarensis complex:
 Betta akarensis Regan, 1910 – Akar betta
 Betta antoni Tan & Ng, 2006
 Betta aurigans Tan & Ng, 2004
 Betta balunga Herre, 1940
 Betta chini Ng, 1993
 Betta ibanorum Tan and Ng, 2004
 Betta obscura Tan & Ng, 2005
 Betta pinguis Tan and Kottelat, 1998

 Albimarginata complex:
 Betta albimarginata Kottelat and Ng, 1994
 Betta channoides Kottelat and Ng, 1994

 Anabatoides complex:
 Betta anabatoides Bleeker, 1851 – giant betta

 Bellica complex:
 Betta bellica Sauvage, 1884 – slim betta
 Betta simorum Tan and Ng, 1996

 Coccina complex:
 Betta brownorum Witte and Schmidt, 1992
 Betta burdigala Kottelat and Ng, 1994
 Betta coccina Vierke, 1979
 Betta livida Ng and Kottelat, 1992
 Betta miniopinna Tan and Tan, 1994
 Betta persephone Schaller, 1986
 Betta rutilans Witte and Kottelat in Kottelat, 1991
 Betta tussyae Schaller, 1985
 Betta uberis Tan & Ng, 2006

 Dimidiata complex:
 Betta dimidiata Roberts, 1989
 Betta krataios Tan & Ng, 2006

 Edithae complex:
 Betta edithae Vierke, 1984

 Foerschi complex:
 Betta foerschi Vierke, 1979
 Betta mandor Tan & Ng, 2006
 Betta rubra Perugia, 1893 – Toba betta
 Betta strohi Schaller and Kottelat, 1989

 Picta complex:
 Betta falx Tan and Kottelat, 1998
 Betta picta (Valenciennes, 1846) – spotted betta
 Betta simplex Kottelat, 1994
 Betta taeniata Regan, 1910 – Borneo betta

 Pugnax complex:
 Betta breviobesus Tan and Kottelat, 1998
 Betta cracens Tan & Ng, 2005
 Betta enisae Kottelat, 1995
 Betta fusca Regan, 1910 – dusky betta
 Betta lehi Tan & Ng, 2005
 Betta pallida Schindler & Schmidt, 2004
 Betta prima Kottelat, 1994
 Betta pugnax (Cantor, 1849) – Penang betta
 Betta pulchra Tan and Tan, 1996
 Betta raja Tan & Ng, 2005
 Betta schalleri Kottelat and Ng, 1994
 Betta stigmosa Tan & Ng, 2005

 Splendens complex:
 Betta imbellis Ladiges, 1975 – crescent betta
 Betta mahachai Panitvong, Nonn, 2002 –
 Betta smaragdina Ladiges, 1972 – emerald green betta
 Betta splendens Regan, 1910 – Siamese fighting fish
 Betta stiktos Tan & Ng, 2005

 Unimaculata complex:
 Betta compuncta Tan & Ng, 2006
 Betta gladiator Tan & Ng, 2005
 Betta ideii Tan & Ng, 2006
 Betta macrostoma Regan, 1910 – spotfin betta
 Betta ocellata de Beaufort, 1933
 Betta pallifina Tan & Ng, 2005
 Betta patoti Weber and de Beaufort, 1922
 Betta unimaculata (Popta, 1905) – Howong betta

 Waseri complex:
 Betta chloropharynx Kottelat and Ng, 1994
 Betta hipposideros Ng and Kottelat, 1994
 Betta pardalotos Hui, 2009
 Betta pi Tan, 1998
 Betta renata Tan, 1998
 Betta spilotogena Ng and Kottelat, 1994
 Betta tomi Ng and Kottelat, 1994
 Betta waseri Krummenacher, 1986

 unassigned:
 Betta apollon Schindler & Schmidt, 2006
 Betta bangka
 Betta bungbihn
 Betta ferox Schindler & Schmidt, 2006
 Betta sukadan

Rujukan

Raitan luar 
 
 The Aquarium Wiki category on Betta care information for sub varieties

Iwak