Western Silverbelly, Parequula elongata Iwatsuki, Pogonoski & Last 2012
Parequula elongata, from off Rottnest Island, Western Australia. Source: Peter Last / CSIRO. License: All rights reserved
A small slender silverbelly with a reddish margin to the dorsal fin, 14-15 soft anal-fin rays and 34-35 pored lateral line scales.
Western Silverbelly, Parequula elongata Iwatsuki, Pogonoski & Last 2012
More Info
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Distribution |
Endemic to temperate waters of southwestern Australia from the Great Australian Bight, south of Point Bell, South Australia, to off Shark Bay, Western Australia, in depths of 40-133 m. The species lives near the bottom on the mid-continental shelf. |
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Features |
Meristic features: Dorsal fin spines/rays IX, 15-16 Anal fin spines/rays III, 14-15 Gill rakers 3-5 + 1 + 10-12 (16-20) Pectoral fin rays 14-15 Pelvic fin spines/rays I, 5 Lateral line scales (pored) 34-35 |
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Size |
To 8.1 cm SL |
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Colour |
Overall translucent with a slight silvery tone, underside silvery-white, fins translucent to whitish; dorsaf fin margins reddish, caudal fin with 4 vertical bands, the outermost band yellowish; iris golden with pale anterior and posterior margins. |
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Feeding |
Carnivore |
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Biology |
Almost nothing is known of the biology of this species. |
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Conservation |
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Similar Species |
Parequula elongata differs from P. melbournensis in having a more slender body, a fewer soft anal-fin rays (14–15, mode 15 vs. 16–18, mode 17), fewer pored lateral line scales (34–35, mode 34 vs. 37–40, mode 38), and a reddish upper margin to the dorsal fin (vs. semi-translucent to bluish with a narrow, parallel, yellowish vertical line on each fin membrane and a yellowish fin margin in P. melbournensis). P. elongata also has a nearly straight to slightly convex head profile, whereas P. melbournensis is distinctly concave in outline profile the eyes. |
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Etymology |
The species is named elongata in reference to its slender body compared with the deeper body of P. melbournensis. |
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Species Citation |
Parequula elongata Iwatsuki, Pogonoski & Last, 2012, Zootaxa 3425: 42–54 Type locality: off Rottnest I., Western Australia, Australia (32°08’S, 115°15’E), 132–133 m. |
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Author |
Dianne J. Bray |
Western Silverbelly, Parequula elongata Iwatsuki, Pogonoski & Last 2012
References
Iwatsuki, Y., J.J. Pogonoski & P. Last. 2012. Revision of the genus Parequula (Pisces: Gerreidae) with a new species from southwestern Australia. Zootaxa 3425: 42–54
