It has a peculiar breeding behaviour that in adult stage it swims upstream and lays eggs and attaches them to the rocks in the sandy bottom at the head of the stream. The young ones (called fries) after hatching swim downstream along the river course and colonise deep pools.
| 1 |
Anguilla bengalensis (Gray) (Maninjeel) |
| 2 |
Puntius carnaticus (Jerdon) (Pachilavetti) |
| 3 |
Puntius melanampyx (Day) (Vazhayka varayan) |
| 4 |
Puntius jerdoni (Day) (Chameen) |
| 5 |
Hypselobarbus curmuca (Ham - Buch) (Kooral) |
| 6 |
Hypselobarbus kolus (Sykes) (Kuzhikutty / Kooral) |
| 7 |
Tor khudree (Sykes) (Kuyil) |
| 8 |
Tor tor (Ham - Buch) (Chenkuyil) |
| 9 |
Osteochilichthys longidorsalis Pethiyagoda and Kottelat |
| 10 |
Barilius bakeri (Day) (Pavay paral) |
| 11 |
Garra Surendranathanii (Shaji etal.) |
| 12 |
Bhavania australis (Jerdon) (Kalpoolon) |
| 13 |
Mystus malabaricus (Jerdon) (Kallan koorie) |
| 14 |
Glyptothorax lonah (Sykes) (Kalle koorie) |
| 15 |
Pristolepis marginata (Jerdon) (Karipidi) |
| 16 |
Macrognathus guentheri (Day) (Manalaral) |
| 1 |
Anguilla bengalensis (Gray) (Maninjeel) |
| 2 |
Puntius filamentosus (Val.) (Poovaliparal) |
| 3 |
Puntius carnaticus (Jerdon) (Pachilavetti) |
| 4 |
Puntius amphibious (val.) (paral) |
| 5 |
Puntius melanampyx (Day) (Vazhayka varayan) |
| 6 |
Puntius sarana sabnasutus (val.) |
| 7 |
Puntius chola (Ham - Buch) (Chola paral) |
| 8 |
Puntius jerdoni (Day) (Chameen) |
| 9 |
Catla catla (Ham - Buch) (Catla) |
| 10 |
Cirrhinus mrigala (Ham.-Buch) (Mrigal) |
| 11 |
Hypselobarbus curmuca (Ham - Buch) (Kooral) |
| 12 |
Hypselobarbus kolus (Sykes) (Kuzhikutty / Kooral) |
| 13 |
Labeo rohita (Ham. - Buch) (Rohu) |
| 14 |
Tor khudree (Sykes) (Kuyil) |
| 15 |
Tor tor (Ham - Buch) (Chenkuyil) |
| 16 |
Osteochilichthys longidorsalis Pethiyagoda and Kottelat |
| 17 |
Osteochilichthys sp. |
| 18 |
Barilius bakeri (Day) (Pavay paral) |
| 19 |
Barilius bendelisis (Ham - Buch) (Pavay paral) |
| 20 |
Barilius gatensis (Val.) (Pavay paral) |
| 21 |
Danio malabaricus (Jerdon) |
| 22 |
Danio aequipinnatus (Mclelland) |
| 23 |
Esomus danricus (Ham - Buch) (Meesa paral) |
| 24 |
Rasbora daniconius (Ham-Buch) (Kaniyan paral) |
| 25 |
Garra mullya (sykes) (Kallu mutti) |
| 26 |
Garra mclellandi (Jerdon) (Kallu mutti) |
| 27 |
Garra surendranathanii (Shaji etal.) |
| 28 |
Bhavania australis (Jerdon) (Kalpoolon) |
| 29 |
Travancoria jonesi Hora (Kalpoolon) |
| 30 |
Nemacheilus guentheri (Day) |
| 31 |
Nemacheilus triangularis Day (Manalara) |
| 32 |
Nemacheilus sp. |
| 33 |
Lepidocephalus thermalis (Val.) |
| 34 |
Mystus armatus (Day) (Koorie) |
| 35 |
Mystus malabaricus (Jerdon) (Kallan koorie) |
| 36 |
Glyptothorax lonah (Sykes) (Kalle koorie) |
| 37 |
Aplocheilus lineatus (Val.) (Manathukanni) |
| 38 |
Clarias batrachus (Linraeus) (Mushi) |
| 39 |
Pristolepis marginata (Jerdon) (Karipidi) |
| 40 |
Etroplus maculates (Bloch) (Pallathi) |
| 41 |
Etroplus suratensis (Bloch) |
| 42 |
Oreochromis mussambica (Peters) (Tilapia) |
| 43 |
Glossogobius giuris (Ham.-Buch) (Poolon) |
| 44 |
Channa marulius (Ham.-Buch) (Cheron) |
| 45 |
Channa orientalis (Block and Scheider) (Vatton) |
| 46 |
Mastacembelus armatus (Lacepede) (Kallaral) |
| 47 |
Macrognathus guentheri (Day) (Manalaral) |
