Ramsay's Flounder, Aseraggodes ramsaii (Ogilby 1889)


Holotype of Ramsay's Flounder, Aseraggodes ramsaii. Source: Mark Allen / Australian Museum. License: CC by Attribution-NonCommercial-ShareAlike


Cite this page as:
Dianne J. Bray, Aseraggodes ramsaii in Fishes of Australia, accessed 18 Jan 2021, http://136.154.202.208/home/species/899

Ramsay's Flounder, Aseraggodes ramsaii (Ogilby 1889)

More Info


Distribution

Known only from Lord Howe Island in the Tasman Sea, and New Caledonia.

Features

Dorsal rays 69–72, branched except first 14–22 rays; anal rays 47–50, all but branched; caudal rays 18 (uppermost and lowermost two rays simple, middle 12–14 doublebranched); pelvic rays 5; lateral-line scales on ocular side 86–88, including 12 anterior to a vertical at upper end of gill opening; scales with 10–14 cteni; scales progressively shorter anteriorly on head and with fewer cteni; 2 rows of scales in narrowest interorbital space, with small scales in 4 or 5 rows extending onto median and anterior edges of eyes; broad lappet–like cirri on ventral margin of head; vertebrae 36; dorsal pterygiophores anterior to fourth neural spine 13–14 (14 in holotype); body depth 2.4–2.6 in SL; HL 4.45–4.5 in SL; upper lip slightly overhanging lower lip when mouth closed; eye diameter 4.05–4.65 in HL; posterior edge of upper eye over middle of lower eye; interorbital space narrow, the least vertical distance separating eyes 12.3–13.3 in HL; lateral line angling upward anteriorly, directed toward dorsal edge of upper eye; ventral edge of lower eye about one-half eye diameter above upper end of gill opening; caudal peduncle present, its length 8.1–10.8 in HL; longest dorsal ray 1.65–1.7 in HL; caudal fin rounded, 3.85–3.95 in SL; ocular-side pelvic fin on ventral edge of body and slightly anterior to fin of blind side, the second or third ray longest, 2.3–2.35 in HL, the tip reaching to base of second or third anal rays; small scales extending nearly to dorsal-fin margin anteriorly on both sides, the scale coverage gradually reduced to fifteenth to 20th ray, and absent posteriorly; a thin membranous lengthwise ridge basally on dorsal and anal rays, disappearing posteriorly; a dark brown cirrus occasional on membranous ridges of dorsal rays on ocular side. 

Colour

In preservative: colour of holotype pale yellow with many small black spots and short wavy lines on head and body, which on the lateral line take the form of streaks extending from two to five scales.

Author

Dianne J. Bray

Resources

Australian Faunal Directory

Ramsay's Flounder, Aseraggodes ramsaii (Ogilby 1889)

References


Allen, G.R., Hoese, D.F., Paxton, J.R., Randall, J.E., Russell, B.C., Starck, W.A., Talbot, F.H. & Whitley, G.P. 1976. Annotated checklist of the fishes of Lord Howe Island. Records of the Australian Museum 30(15): 365-454 figs 1-2 (p. 437, as Aseraggodes haackeanus, in part)

Francis, M. 1993. Checklist of the coastal fishes of Lord Howe, Norfolk, and Kermadec Islands, southwest Pacific Ocean. Pacific Science 47(2): 136-170 figs 1-2 (p. 168, as Aseraggodes ramsayi)

Randall, J.E. 2005. A review of soles of the genus Aseraggodes from the South Pacific, with descriptions of seven new species and a diagnosis of Synclidopus. Memoirs of Museum Victoria 62(2): 191-212 [209] 

Randall, J.E. 2005. A review of soles of the genus Aseraggodes from the South Pacific, with descriptions of seven new species and a diagnosis of Synclidopus.Memoirs of Museum Victoria 62(2): 191-212. PDF Open access

Randall, J.E. & Meléndez C.R. 1987. A new sole of the genus Aseroggodes from Easter Island and Lord Howe Island, with comments of the validity of A. ramsaii. Occasional Papers of the Bernice P. Bishop Museum 27: 97-105 figs 1-4 (p. 104, as Aseraggodes ramsayi)

Quick Facts


CAAB Code:37462038

Depth:2-25 m

Habitat:Reef associated, sandy areas

Max Size:6.4 cm SL

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