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8 results for “Danionella”
Figure 3 in The emerging vertebrate model species for neurophysiological studies is Danionella cerebrum, new species (Teleostei: Cyprinidae)
Figure 3. RaxmltreeforthecoxIgeneofthefivespeciesof Danionella (upperlef) fromdifferentsampling locations (data set 1) and map (upper right) showing type localities (large circles) and locations of additional samples (small circles). Note that both species, D. cerebrum and D. translucida, co-occur at each other's type locality. Roadside canal at Hmawbi (lower lef), type locality of D. cerebrum, and Daikme Chaung (lower right), type locality of D. translucida, illustrating the typical turbid streams in which these two species occur. Map created with QGIS version 3.8.3-Zanzibar (http://www.qgis.org).
Figure 1 in The emerging vertebrate model species for neurophysiological studies is Danionella cerebrum, new species (Teleostei: Cyprinidae)
Figure 1. Danionellacerebrum. (a) male (ca. 10 mmSL) and (b) female (ca. 12 mmSL) inlife, notpreserved; note yellowish chromatophores dorsally on head, melanophores scattered in rows on body in both sexes, and eggs covered by large melanophores in female; (c) MTD 39985, paratype, 10.4 mm SL, male and (d) BMNH 2021.8.30.1, holotype, 12.6 mm SL, female (below), white arrows mark position of vent, which is shifed anteriorly to the pelvic fins in males; (e) Weberian apparatus in male, MTD 39992, paratype, 11.7 mm SL and (f) female, MTD 39992, paratype, 11.8 mm SL, in lateral view; the same in male (g) and female (h) in frontal view; (e) and (g) black arrowhead marks connection between lateral process and outer arm of os suspensorium, star marks connecting flanges between inner and outer arms of os suspensorium and red arrow marks posterior extension of inner arm of os suspensorium covering swimbladder dorsally. Abbreviations: cl, claustrum; dc, drumming cartilage; ios, inner arm of os suspensorium; nc, neural complex; oos, outer arm of os suspensorium; r, rib; sc, scaphium; sw, swimbladder.
Figure 4. Timetreeofthefivespeciesof Danionella illustratingrelationshipsof D in The emerging vertebrate model species for neurophysiological studies is Danionella cerebrum, new species (Teleostei: Cyprinidae)
Figure 4. Timetreeofthefivespeciesof Danionella illustratingrelationshipsof D. cerebrum (lef), differencesin external appearance of preserved specimens (middle), and sexual dimorphisms in the skeleton of the Weberian apparatus (right, double column) in cleared and double stained specimens. Preserved specimens (middle) from top: Danionelladracula, BMNH 2008.1.1.1, male, holotype, BMNH.1.1.2–99, female, paratype, D. priapus, BMNH 2009.9.9.1, male, holotype, BMNH 2009.9.9.2–37, paratype, female; D. translucida NRM 32235, male and female paratypes; D. mirifica, USNM 372848, male and female paratypes; D. cerebrum, MTD 39985, male, paratype, BMNH 2021.8.30.1, female, holotype. Cleared and stained specimens (scale bar 0.1 mm), males, lef column from top: D. dracula, BMNH 2008.1.1.100–119, 16.2 mm; D. priapus, BMNH 2009.9.9.38–43, 16.5 mm; D. translucida, MTD 39992, 9.8 mm; D. mirifica, USNM 372848, 13.2 mm; D. cerebrum, MTD 39986, 11.7 mm; black arrowheads mark connection between lateral process and outer arm of os suspensorium, black stars mark connecting flanges between inner and outer arms of os suspensorium, and red arrows marks posterior extension of inner arm of os suspensorium covering swimbladder dorsally. Females, right column from top: D. dracula, BMNH 2008.1.1.100–119, 14.7 mm; D. priapus, BMNH 2009.9.9.38–43, 14.8 mm; D. translucida, MTD 39992, 11.2 mm; D. mirifica, USNM 372848, 13.2 mm, D. cerebrum, MTD 39986, 11.7 mm.
FIGURE 4 in Danionella priapus, a new species of miniature cyprinid fish from West Bengal, India (Teleostei: Cypriniformes: Cyprinidae)
FIGURE 4. Live colouration of male (above) and female (below) Danionella priapus. Specimens not preserved. Note eggs in body cavity of female.
FIGURE 2 in Danionella priapus, a new species of miniature cyprinid fish from West Bengal, India (Teleostei: Cypriniformes: Cyprinidae)
FIGURE 2. Difference in pelvic-fin structure in Danionella priapus: a holotype, BMNH 2009.9.9.1, male, 14.4 mm SL, close-up of modified pelvic fins and conically projecting genital papilla; b, BMNH 2009.9.9.2-37, paratype, female, 15.0 mm SL, close-up of pelvic fins and preanal fin fold.
FIGURE 3 in Danionella priapus, a new species of miniature cyprinid fish from West Bengal, India (Teleostei: Cypriniformes: Cyprinidae)
FIGURE 3. Dorsal and ventral view of colour pattern of head and anterior body in Danionella priapus, holotype, BMNH 2009.9.9.1, male, 14.4 mm SL.
FIGURE 1 in Danionella priapus, a new species of miniature cyprinid fish from West Bengal, India (Teleostei: Cypriniformes: Cyprinidae)
FIGURE 1. Lateral view of Danionella priapus: a. BMNH 2009.9.9.1, holotype, male, 14.4 mm SL; b. BMNH 2009.9.9.2-37, paratype, female, 15.0 mm SL. Note presence of eggs and larval preanal fin fold in female, and difference in size and shape of pelvic fins and in position of anus and genital papilla between male and female.
FIGURE 5 in Danionella priapus, a new species of miniature cyprinid fish from West Bengal, India (Teleostei: Cypriniformes: Cyprinidae)
FIGURE 5. Distribution of the four species of Danionella in India and Myanmar.
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