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23 results for “Acanthuridae”
Fig. 3 in A New Species Of The Unicornfish Genus Naso (Teleostei: Acanthuridae) From Taiwan, With Comments On Its Phylogenetic Relationship
Fig. 3. Scanning microscopy image of the mesial face of right sagittal otolith taken from Naso tergus, NMMB-P10816, adult male, 342 mm SL. Scale bar = 1 mm.
Fig. 1 in A New Species Of The Unicornfish Genus Naso (Teleostei: Acanthuridae) From Taiwan, With Comments On Its Phylogenetic Relationship
Fig. 1. Naso tergus, new species: a, Holotype, NMMB-P10808, adult male, 335 mm SL; b, Paratype, NMMB-P10813, adult female, 320 mm SL.
Fig. 4 in A New Species Of The Unicornfish Genus Naso (Teleostei: Acanthuridae) From Taiwan, With Comments On Its Phylogenetic Relationship
Fig. 4. Phylogenetic trees of Naso species using combined DNA data (ETS2, 16S and Cyt b): a, Topology by ML analysis and bootstrap values at the branches; b, Topology by Bayesian analyses and posterior probabilities at the branches. Numbers refer to the sub-clades: 1 for the N. annulatus sub-clade, 2 for the N. brevirostris sub-clade, 3 for the N. elegans sub-clade, 4 for the N. maculatus sub-clade, and 5 for the N. tergus sub-clade. Black and open squares indicate the foraging modes.
Fig. 3 in Northernmost Record of the Surgeonfish Acanthurus nigros (Teleostei: Acanthuridae) from Minamidaitojima Island, Southern Japan
Fig. 3. Maximum likelihood tree based on partial sequence of the mitochondrial cytochrome b gene (754 bp) of Acanthurus nigros and A. nigroris. Numbers beside the internal branches indicate bootstrap probabilities (>95%) based on 1000 pseudoreplicates.
Fig. 2 in Northernmost Record of the Surgeonfish Acanthurus nigros (Teleostei: Acanthuridae) from Minamidaitojima Island, Southern Japan
Fig. 2. Distributional records of Acanthurus nigros. Star and circles indicate present and previous records (Randall et al. 2011), respectively.
Figure 2 in First report of the yellowfin surgeonfish Acanthurus xanthopterus (Teleostei: Acanthuridae) in northern Peru
Figure 2. – Specimens of Acanthurus xanthopterus, E-1: 42 cm TL, Puerto Morin; E-2: 40 cm TL, Puerto Salaverry (La Libertad, Peru).
Fig. 4 in Flight response of the barber surgeonfish, Acanthurus bahianus Castelnau, 1855 (Teleostei: Acanthuridae), to spearfisher presence
Fig. 4. Results of Ivlev's index showing the preference of Acanthurus chirurgus, Acanthurus coeruleus and Halichoeres poey; and the rejection of Stegastes fuscus and Sphoeroides spengleri to form groups with Acanthurus bahianus.
Fig. 3 in Flight response of the barber surgeonfish, Acanthurus bahianus Castelnau, 1855 (Teleostei: Acanthuridae), to spearfisher presence
Fig. 3. Flight Initiation Distance (cm) (mean ± S.D.) for Acanthurus bahianus in the main substrates found at the study site. Different letters means significant differences – p <0.05.
Fig. 2 in Flight response of the barber surgeonfish, Acanthurus bahianus Castelnau, 1855 (Teleostei: Acanthuridae), to spearfisher presence
Fig. 2. Flight Initiation Distance (cm) plotted against Group size (a), Body size (cm) (b), and Distance of shelter (cm) (c) for Acanthurus bahianus.
FIG. 4 in Arambourgthurus, a new genus of hypurostegic surgeonfish (Acanthuridae) from the Oligocene of Iran, with a phylogeny of the Nasinae
FIG. 4. — Arambourgthurus scombrurus (Arambourg), reconstruction of the spiny dorsal fin and its pterygiophores, the abdominal vertebrae, and the first two caudal vertebrae of the holotype, MNHN 1939-6-5 (EIP5), c. 85 mm SL. Scale bar: 5 mm.
FIG. 3 in Arambourgthurus, a new genus of hypurostegic surgeonfish (Acanthuridae) from the Oligocene of Iran, with a phylogeny of the Nasinae
FIG. 3. — Arambourgthurus scombrurus (Arambourg), reconstruction of the paratype, MNHN 1939-6-7g (EIP7g), 146 mm SL. Scale bar: 20 mm.
FIG. 6 in Arambourgthurus, a new genus of hypurostegic surgeonfish (Acanthuridae) from the Oligocene of Iran, with a phylogeny of the Nasinae
FIG. 6. — Cladogram of the relationships of the lower acanthurids (Nasinae), with numbers corresponding to those in the section "Analysis of characters": 1-1, short non-protruding first dorsal-fin spine; 2-1, three or fewer pelvic-fin rays; 3-1, dorsal pterygial shield (3-0, reversal to dorsal pterygial shield absent); 4-1, small uroneural; 5-1, hypurals one through four fused; 6-1, shallow caudal peduncle; 7-1, two dorsal pterygiophores in preneural space; 8-1, no vacant interneural spaces; 8-2, two vacant interneural spaces; 8-3, three vacant interneural spaces; 9-1, second interneural space vacant; 10-1, extensive hypurostegy; 11-1, supraneural present; 12-1, opercular dilator process; 13-1, anal pterygial shield; 14-1, narrow pelvis. Ages of genera: Naso, Recent; Eonaso, unknown but probably far more recent than Eocene; Arambourgthurus, Oligocene; Sorbinithurus, Eocene; Marosichthys, Miocene.
FIG. 2 in Arambourgthurus, a new genus of hypurostegic surgeonfish (Acanthuridae) from the Oligocene of Iran, with a phylogeny of the Nasinae
FIG. 2. — Arambourgthurus scombrurus (Arambourg), paratype, MNHN 1939-6-7g (EIP7g), 146 mm SL, Oligocene of Iran. Scale bar: 20 mm.
Figure 1 in First report of the yellowfin surgeonfish Acanthurus xanthopterus (Teleostei: Acanthuridae) in northern Peru
Figure 1. – Capture locations of the two specimens of Acanthurus xanthopterus, La Libertad, Peru.
Fig. 1 in Flight response of the barber surgeonfish, Acanthurus bahianus Castelnau, 1855 (Teleostei: Acanthuridae), to spearfisher presence
Fig. 1. Location of the study area at the Porto da Barra (black star), Salvador, Bahia, Brazil.
Data from: Visual system development of the spotted unicornfish, Naso brevirostris (Acanthuridae)
Open the record for dataset details and reuse information.
FIGURE 2 in The goldrim surgeonfish (Acanthurus nigricans; Acanthuridae) from Diego Garcia, Chagos Archipelago: first record for the central Indian Ocean
FIGURE 2. Map of Diego Garcia, Chagos Archipelago, British Indian Ocean Territory. Asterisks (*) indicate approximate collecting localities.
FIGURE 1 in The goldrim surgeonfish (Acanthurus nigricans; Acanthuridae) from Diego Garcia, Chagos Archipelago: first record for the central Indian Ocean
FIGURE 1. Photographs of Acanthurus nigricans at Diego Garcia, Chagos Archipelago, British Indian Ocean Territory.
FIGURE 2 in Acanthurus tractus Poey, 1860, a valid western Atlantic species of surgeonfish (Teleostei, Acanthuridae), distinct from Acanthurus bahianus Castelnau, 1855
FIGURE 2. Relationships among Atlantic Acanthurus based on Bayesian analysis of mitochondrial CytB sequences. Numbers above branches correspond to posterior probabilities and those below branches are bootstrap support. Since our analysis did not include Pacific or Indian Ocean surgeonfishes, relationships in this tree (especially the position of long branches) may change with the addition of other taxa.
FIGURE 1 in Acanthurus tractus Poey, 1860, a valid western Atlantic species of surgeonfish (Teleostei, Acanthuridae), distinct from Acanthurus bahianus Castelnau, 1855
FIGURE 1. Underwater photographs of Acanthurus tractus (A to C) and Acanthurus bahianus (D to F). Note the clear and consistent difference in the coloration of the margin of the caudal and dorsal fins. Photographs by J. Randall (1A), D. Snyder (1B, 1C), O. Luiz-Junior (1D, 1E) and G. Allen (1F).
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