What are the differences between Mystus vittatus and Mystus tengara?

1 answer

Striped Dwarf Catfish: Mystus vittatus (Bloch, 1794)Striped Dwarf Catfish: Mystus vittatus

Systematic position
Phylum: Chordata
Class: Actinopterygii (Ray-finned fishes)
Order: Siluriformes (Catfishes)
Superfamily: Bagroidea
Family: Bagridae (Bagrid catfishes)
Genus: Mystus
Species: M. vittatus

Synonyms
Aoria vittatus
(Bloch, 1794)
Bagrus vittatus (Bloch, 1794)
Macrones vittatus (Bloch, 1794)
Mystus vittatus vittatus (Bloch, 1794)
Silurus vittatus Bloch, 1794

Common/local names
English: Striped dwarf catfish
Bangladesh: Tengra (টেংরা)
India: Singorah and Tengara (Assam); Tengra (West Bengal); Kuggur, Tengra and Palwa (Bihar); Kabakander (Punjab); Kuntiah and Tengra (Orissa); Suku-jella and Erra-jella (Andhra Pradesh); Katta-keluthi, Natta-kellettee, Auppan-keluthi and Sonan-keluthi (Tamil Nadu); Chillan, Kallen coori and Ettachulli (Kerala) (Talwar and Jhingran, 1991).

Distributions: Bangladesh, the Punjab, Sind Ceylon, India, Assam, Myanmar and Siam (Bhuiyan, 1964). Also found in Nepal, Sri Lanka and Thailand (Talwar and Jhingran, 1991).

Conservation status: Not threatened in Bangladesh (IUCN Bangladesh, 2000).

Morphology: Body elongated and slightly compressed. 4 pairs of barbels, maxillary barbels extending beyond the pelvic fins, often to the end of the anal fin. Dorsal spine weak, finely serrated on its inner edge. Adipose fin small, inserted much behind rayed dorsal fin but anterior to the anal fin. Lateral line present and straight.

Color varies with age; generally delicate gray-silvery to shining golden, with about 5 pale blue or dark brown to deep black longitudinal on side. A narrow dusky spot often present on the shoulder. The fins glass, with dark tips. Head 23.3% SL and 18.2% TL. Height 16.3% SL and 12.7% TL. Eye 15% HL.

Fin formula:
D. 1/7; P1. 1/9; P2. 6; A. 11 (Rahman, 1989 and 2005)
D I 7; A ii-iii 7-9; P I 9; V i 5 (Talwar and Jhingran, 1991)
D1. I/7; D2. 0; P. I/8; A. 9-12 (2-3/7-9); V. I/5; C. 17 (Shafi and Quddus, 2001)

Maximum lengths: 10.2 cm (Bhuiyan, 1964), 9.5 cm (Hussain, 1999), 11.7 cm (Rahman, 1989 and 2005) and 20.2 cm (Shafi and Quddus, 2001).

Habitats: Found in freshwater bodies;  in flooded canals, beels, paddy and jute fields, streams, haors, oxbow lakes and rivers in swarms during rainy season (Bhuiyan, 1964; Shafi and Quddus, 2001). Inhibits standing and flowing water bodies, even in the tidal zone (Talwar and Jhingran, 1991). Recorded from Chalan Beel (Galib et al., 2009a).

Food and feeding: Bottom feeder (Shafi and Quddus, 2001). Food materials include algae (18%), higher plants (27%), protozoa (13%), crustaceans (24%) and insects (11%) (Bhuiyan, 1964). According to Shafi and Quddus (2001) food of this fish composed of 22% algae, 27% aquatic plants, 13% protozoan, 2% chironomas and other aquatic insect larvae, 16% small mollusk and 20% small fishes.

Breeding: During summer monsoon (Bhuiyan, 1964; Shafi and Quddus, 2001).

Economics importance: Used as food fish in Bangladesh.

Harvesting and marketing: Harvested by using cast net, drag net, hooks (Shafi and Quddus, 2001). In Chalan Beel, Punti Jal (gill net), Khora jal (lift net), Thela jal (drag net), Ber jal (seine net), Moi jal (drag net), Bitti (trap), Kholsun (trap), Tengra borshi (Tengra hook) etc. are used (Galib et al., 2009b) Caught in large quantities in ponds, lakes, rivers etc. in the Indian region (Talwar and Jhingran, 1991). Extensively available in the market during rainy season (Bhuiyan, 1964).

 

Reference:
Galib SM (2010) Striped Dwarf Catfish: Mystus vittatus (Bloch, 1794)  BdFISH Feature. en.bdfish.org

Tengara mystus, Mystus tengara (Hamilton, 1822)Tengara mystus, Mystus tengara

Systematic position
Class: Actinopterygii (Ray- finned fish)
Order: Siluriformes (Catfishes)
Family: Bagridae (Bagrid catfishes)
Genus: Mystus
Species: M. tengara

Synonyms
Macrones tengara (Hamilton, 1822)
Pimelodus carcio Hamilton, 1822
Pimelodus tengara Hamilton, 1822

Common/local names

English name: Tengara mystus

India: Tinggaray, Singorah, Tengara, Tengana, Kuttahrah, Tinggarah, Tengara and choto tengra (Talwar and Jhingran, 1991)

Bangladesh: Bajari tengra (বাজারি টেংরা), Bujuri tengra (বুজুরি টেংরা), Choto tengra (ছোট টেংরা) and Guitta tengra (গুইট্টা টেংরা).

 

Distribution: Pakistan, India, Nepal and Bangalesh (Talwar and Jhingran, 1991). Bangladesh Assam, North India and the Panjab (Bhuiyan, 1964).

 

Conservation status: Non threatened in Bangladesh (IUCN Bangladesh, 2000).

 

Morphology: Body elongated and slightly compressed. Head depressed. Dorsal spine long upto head keep out the head. Pectoral spine with 10 to13 denticulations (Rahman, 1989). Pectoral spine stronger than dorsal spine, used as offence organ and injure occurred by it is very painful (Bhuiyan, 1964; Talwar and Jhingran, 1991). 4-5 longitudinal bands along sides (Galib, 2008). Adipose short. Upper lobe of caudal fin longer. Body color yellow or brown with a dark spot on shoulder. Barbels 4 pairs. Mouth terminal.

Head 21.1% SL and 19.4% TL. Height 22.8% SL and 21% TL. Eye 25% HL (Galib, 2008). Head 2.8-3.3 in standard, 3.8-4.5 in total length, Height 2.5-3.3 in standard, 3.3-4.3 in total length , Eye 3.5 – 4.5 in head (Rahman, 1989). Eye 4-4.5 in head (Talwar and Jhingran, 1991).

Fin formula-
D I 7; A ii-iii 9-10; P I 8; V i 5 (Talwar and Jhingran, 1991)
D. I/7; P1. I/8; P2.6; A. 10-139 (Rahman, 1989)
B. x-xi; D1. 1/7; D2. o; P. 1/8; V.6; A 11-13(2-3/8-10); C. 19 (Bhuiyan, 1964)

Maximum lengths reported: 7 cm (Bhuiyan, 1964) and 6.2 cm (Rahman, 1989).

 

Habitat and niche: This species usually found in weedy, sandy and muddy places of the pools, streams and river in the rainy season (Bhuiyan, 1964).

Recorded from Bookbhara Baor, Jessore (Mohsin et al., 2009); Chalan Beel (Galib et al., 2009); Padma river, Rajshahi (Samad et al., 2010); Saldu Beel, Tangail (Saha and Hossain, 2002) and Shakla Beel, Brahmanbaria (Ahmed et al., 2004).

 

Economic importance: Used as food fish in Bangladesh. It is very good to taste and useful in calcium deficiency (Bhuiyan, 1964).

 

Harvesting and marketing: Dip net (dharma jal), Push net (thela jal), wucha (bamboo trap) used for fishing (Bhuiyan, 1964).

 

Remarks: It is closely connected to Mystus vittatus in the color pattern. But distinguished from the median longitudinal groove on head which reaches the base of occipital process. The young of both is very difficult to identify (Talwar and Jhingran, 1991).

 

Reference:
Chaki N (2011) Tengara mystus, Mystus tengara (Hamilton, 1822) BdFISH Feature. en.bdfish.org

#1

Please login or Register to Submit Answer

Latest Q&A

To get new Q&A alert in your inbox, please subscribe your email here

Enter your email address:

Delivered by FeedBurner

Like our FaceBook Page to get updates

Are you satisfied with this site?

If YES, Please SHARE with your friends

If NO, You may send your feedback from Here

OR, Do you have any fisheries relevant question? Please Ask Here