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73 results for “Channidae”
FIGURE 4 in Channa pseudomarulius, a valid species of snakehead from the Western Ghats region of peninsular India (Teleostei: Channidae), with comments on Ophicephalus grandinosus, O. theophrasti and O. leucopunctatus
FIGURE 4. Median-joining networks show the hypothesised evolutionary relationships between CO1 haplotypes (615 bps) for Channa pseudomarulius (left) and C. marulius (right). In each network, circles represent individual haplotypes, lines between haplotypes represent single base pair mutations, and small filled circles represent hypothesised intermediate haplotypes not sampled in this study. There was a minimum of 49 mutational differences between haplotypes from each species. Colour of each haplotype corresponds to geographical locations illustrated on map of Indian subcontinent, unfilled circles represent haplotypes that were observed in samples of unverified origin (all C. pseudomarulius were from Kerala/South India, the unverified C. marulius was reportedly from an unknown location in Andhra Pradesh).
Figure 6 in Observations and evolutionary considerations on trophic egg provisioning in snakeheads (Teleostei: Channidae)
Figure 6. Phylogeny of the Channa gachua Group adopted from Rüber et al. (2020) with known captive breeding behaviour indicated. The square indicate the hypothesised advent of trophic egg provisioning.
Figure 5 in Observations and evolutionary considerations on trophic egg provisioning in snakeheads (Teleostei: Channidae)
Figure 5. Time-tree of Channidae adopted from Rüber et al. (2020). Species groups follow Rüber et al. (2020). The square indicate the hypothesised advent of trophic egg provisioning.
Figure 4 in Observations and evolutionary considerations on trophic egg provisioning in snakeheads (Teleostei: Channidae)
Figure 4. Channa gachua fry at 1, 7, 14, 20, 28, 34 and 42 days of age display quick growth until about day 30 on a diet composed solely of trophic eggs. The growth curve is based on the average length of 4–6 fry measured every other day (lower right).
FIGURE 5 in Channa auroflammea, a new species of snakehead fish of the Marulius group from the Mekong River in Laos and Cambodia (Teleostei: Channidae)
FIGURE 5. Comparison of colour patterns of scales in mid-lateral black blotches in members of the Marulius group. (A) Channa pseudomarulius, 164 mm SL, not preserved, Kerala, Pamba River; (B) Channa marulius, BMNH 2017.5.17.1, 226 mm SL, Myanmar, Rakhine State; (C) C. aurolineata, ca. 500 mm SL, not preserved, Myanmar, Kachin State, Hkamti market; (D) C. auroflammea, ca. 550 mm SL, not preserved, Cambodia, Stung Treng, fish market.
FIGURE 4 in Channa auroflammea, a new species of snakehead fish of the Marulius group from the Mekong River in Laos and Cambodia (Teleostei: Channidae)
FIGURE 4. Comparison of ranges of key meristic counts among four members of the Marulius group. Thin bars indicate counts from aberrant specimens included in ranges. Note that counts for C. auroflammea are generally lower than those for its genetically and geographically closest species, C. aurolineata. Map illustrates known and/or expected geographical distributions for each species, from west to east: C. pseudomarulius, C. marulius, C. aurolineata, and C. auroflammea.
FIGURE 3 in Channa auroflammea, a new species of snakehead fish of the Marulius group from the Mekong River in Laos and Cambodia (Teleostei: Channidae)
FIGURE 3. Channa auroflammea. (A) ca. 550 mm SL, alive, not preserved, Cambodia, Stung Treng, fish market. Note bright orange gular area of head and ventral half of abdominal and caudal body, small white spots on body and median fins. (B) ca. 500 mm SL, not preserved but DNA sampled, Laos: Nam Ngiep watershed, NamChae. Note very dark overall colouration and absence of orange colour on ventral half (photo: M. Kottelat).
FIGURE 1 in Channa auroflammea, a new species of snakehead fish of the Marulius group from the Mekong River in Laos and Cambodia (Teleostei: Channidae)
FIGURE 1. Map of the Mekong River Basin showing approximate collection localities of Channa auroflammea specimens and DNA samples examined in this study. Inset shows regional political boundaries of mainland Southeast Asia: Laos (L), Thailand (T), Cambodia (C), and Vietnam (V).
FIGURE 2 in Channa auroflammea, a new species of snakehead fish of the Marulius group from the Mekong River in Laos and Cambodia (Teleostei: Channidae)
FIGURE 2. Channa auroflammea. (A) BMNH 2015.1.29.13, holotype, 600 mm SL; Cambodia: Ban Lung market; (B) CMK 23842, paratype, 253 mm SL; Laos: Nam Ngum reservoir; (C) ZRC 54747, paratype, 143 mm SL, Laos: Nam Gnouang. (D) CMK, non-type, 81.5 mm SL, Laos: Xe Banghiang (photo: M. Kottelat).
FIGURE 6 in The subterranean Aenigmachanna gollum, a new genus and species of snakehead (Teleostei: Channidae) from Kerala, South India
FIGURE 6. Map of southern India with the type locality of Aenigmachanna gollum marked by yellow star.
FIGURE 4 in The subterranean Aenigmachanna gollum, a new genus and species of snakehead (Teleostei: Channidae) from Kerala, South India
FIGURE 4. Aenigmachanna gollum, preserved, holotype, BNHS FWF 966, 90.2 mm SL, details of body pigmentation. A, anterior body behind pectoral fin; B, posterior body at middle of caudal peduncle. Note increase in size of pigment free area at bases of scales in B.
FIGURE 7 in The subterranean Aenigmachanna gollum, a new genus and species of snakehead (Teleostei: Channidae) from Kerala, South India
FIGURE 7. Maximum likelihood tree based on mitochondrial cox1 gene using best partition scheme for nucleotide substitution pattern. Anabantiform fishes of the genera Badis and Nandus were used as outgroups. Values along the nodes are percentage bootstrap values based on 1000 iterations.
FIGURE 2 in The subterranean Aenigmachanna gollum, a new genus and species of snakehead (Teleostei: Channidae) from Kerala, South India
FIGURE 2. Aenigmachanna gollum, preserved, holotype, BNHS FWF 966, 90.2 mm SL, Oorakam, Malappuram, Kerala, India in lateral (A), dorsal (B), and ventral view (C).
FIGURE 3 in The subterranean Aenigmachanna gollum, a new genus and species of snakehead (Teleostei: Channidae) from Kerala, South India
FIGURE 3. Aenigmachanna gollum, preserved, paratype, BNHS FWF 967, 80.1 mm SL, Oorakam, Malappuram, Kerala, India, head in lateral (A), dorsal (B), and ventral view (C), sensory pores of head lateral-line marked by black dots. Abbreviations: aa anguloarticular pore; co circumorbital pores; d dentary pores; esc extrascapular pores; f frontal pores; po preopercular pores; pt posttemporal pores; pto pterotic pores.
FIGURE 6 in Channa brunnea, a new species of snakehead (Teleostei: Channidae) from West Bengal, India
FIGURE 6. Phylogenetic position of Channa brunnea (ZSI FF 8041, JPC-33), based on the maximum likelihood analysis. Values along nodes are percent bootstraps for 1000 iterations. Red circle denotes the GenBank accession number for the new species, and blue circle denotes the GenBank accession numbers generated in the present study. Sequences of Parachanna sp. (MF496973, KT193392, MF496979) is used as a outgroup.
FIGURE 5. A male C in Channa brunnea, a new species of snakehead (Teleostei: Channidae) from West Bengal, India
FIGURE 5. A male C. brunnea (uncatalogued) guarding the fertilised buoyant eggs, documented by a German fish hobbyist (Photo by Dominik Niemeier).
FIGURE 3. Teeth pattern. 1 in Channa brunnea, a new species of snakehead (Teleostei: Channidae) from West Bengal, India
FIGURE 3. Teeth pattern. 1st row (A, B)—Channa brunnea, Paratype, 98.2 mm SL (JPC-33); 2nd row (C, D)—Channa bleheri (JPC-28). (1st column—Fifth ceratobranchial, 2nd column—Dentary).
FIGURE 4. A in Channa brunnea, a new species of snakehead (Teleostei: Channidae) from West Bengal, India
FIGURE 4. A. Channa brunnea, uncatalogued aquarium specimen (Photo by Shankar Balasubramanian), B. Channa bleheri, ZSI FF 8039, 87.3 mm SL, C. Channa andrao, JPC-34, 102.2 mm SL.
FIGURE 2. Channa brunnea A in Channa brunnea, a new species of snakehead (Teleostei: Channidae) from West Bengal, India
FIGURE 2. Channa brunnea A. Holotype, ZSI FF 8040, 109.8 mm SL, B. Paratype, ZSI FF 8041, 99.3 mm SL.
FIGURE 1 in Channa brunnea, a new species of snakehead (Teleostei: Channidae) from West Bengal, India
FIGURE 1. Channa brunnea, holotype, ZSI FF 8040, 109.8 mm SL, West Bengal, Jalpaiguri district, a swamp originating from the Bhalka forest in the vicinity of the Sankosh River (26°30'3.57"N; 89°50'32.63"E).
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International Brain Laboratory public data
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OpenNeuro
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