A review of soles of the genus Aseraggodes from the South Pacific, with descriptions of seven new species and a diagnosis of Synclidopus.
Author
Randall, John E.
text
Memoirs of Museum Victoria
2005
2005-12-31
62
2
191
212
https://museumsvictoria.com.au/collections-research/journals/memoirs-of-museum-victoria/volume-62-issue-2-2005/pages-191-212/
journal article
10.24199/j.mmv.2005.62.7
1447-2554
12207953
738843C4-02BE-44CE-924C-07C8F36E6B31
Aseraggodes normani
Chabanaud
Figure 13
,
Tables 1–3
Aseraggodes melanostictus
.—
Norman, 1926: 290
, fig. 12 (off Gladstone,
Queensland
) (non Peters)
Aseraggodes normani
Chabanaud, 1930: 241
.
Material examined.
Queensland
:
BMNH 1925.7
.22.73,
109 mm
,
holotype
of
Aseraggodes normani
.
WSW of Townsend Island
,
22°21.5'S
,
150°25'E
,
AMS
I.34377-005,
83 mm
.
2 km
NE of
Cape Clinton
,
22°32'S
,
150°48'E
,
AMS
I.34399-032,
93.5 mm
.
2 km
NE of
Cliff Point
,
22°35'S
,
150°49'E
,
AMS
I.34361-024, 3:
74.5–89 mm
.
Off Gladstone
,
AMS
IA.
2993, 104.5 mm
.
Off Bustard Head
,
24°1'S
,
151°46'E
,
AMS
IB.1105,
97.5 mm
.
Moreton Bay
,
AMS
I.
484, 116 mm
.
Type
locality.
Coast
of
Queensland
.
Diagnosis
. Dorsal rays 64–71, anal rays 50–52; dorsal and anal rays unbranched (Chabanaud incorrect in reporting bifid tips); pelvic rays 5; caudal rays 18, 14 branched; lateral-line scales 68–73 (counted to origin of dorsoanterior branch on head); only tips of cteni projecting beyond posterior edge of scales, with at most 8 cteni tips posteriorly on body, fewer anteriorly); eyes separated by 3 rows of scales at narrowest place, with an additional row medially and anteriorly on each eye; vertebrae 35–36 (usually 35); dorsal pterygiophores anterior to fourth neural spine 10–11; body depth
2.3–2.55 in
SL; HL
4.4–4.8 in
SL; snout length
2.3–2.5 in
HL; scales anteriorly on head replaced by slender cirri, progressively longer, those at ventral edge of head and front of snout up to three-fourths eye diameter in length; lateral line aligned with dorsal edge of upper eye, ending with a dorsoanterior branch of 7–9 pored scales, straight branch of 4–6 scales, and ventral branch of 7–9 scales; no pores detected beneath scales on ocular side of body; eye diameter 5.0–
6.5 in
HL; upper eye overlapping anterior one-half to three-fourths of lower eye; narrowest vertical interorbital space 8.2–9.0 in HL; upper end of gill opening at level of ventral fleshy edge of lower eye; tubular anterior nostril broad, not reaching fleshy base of lower eye when laid back; no caudal peduncle; depth at base of caudal fin
1.55–1.8 in
HL; caudal fin rounded, its length
4.1–4.5 in
SL; longest dorsal ray
1.35–1.5 in
HL; blind side of dorsal and anal rays with a lengthwise thin membranous ridge, broad at base and narrowing as it extends up to three-fourths ray length anteriorly, progressively shorter and narrower posteriorly; edge of membrane on anterior rays of blind side of dorsal fin with cirri; pelvic fins
1.9–2.05 in
HL, the tip of longest ray extending to base of second or third anal ray; ocular-side pelvic fin distinctly anterior and larger than fin of blind side; both fins broadly joined by membrane from their fifth rays and jointly to the large genital papilla about one-half length above its base; colour in alcohol light brown, densely dotted with black and short black scale edges; scattered roundish pale spots smaller than eye variously present, some free of black dots; median fins with black dots, but fewer than on body;
one specimen
with a few large dark blotches on lateral line and on either side of lateral line. Largest specimen examined,
116 mm
SL.
Figure 14. Holotype of
Aseraggodes pelvicus
, AMS IB.
6134, 67.5 mm, Swains Reefs, Great Barrier Reef.
Table 10. Proportional measurements of holotype of
Aseraggodes pelvicus
as percentages of standard length
Standard Length (mm) 67.5 Body depth 41.2 Body width 7.8 Head length 21.0 Snout length 7.6 Preorbital length 8.1 Eye diameter 3.3 Interorbital width 2.1 Upper-jaw length 6.7 Caudal-peduncle depth 14.2 Caudal-peduncle length 1.7 Predorsal length 6.5 Preanal length 25.2 Prepelvic length 20.3 First dorsal ray 7.5 Longest dorsal ray 16.5 First anal ray 10.3 Longest anal ray 16.6 Caudal-fin length 29.5 Pelvic-fin length 10.2
Remarks
. Known only from off the coast of
Queensland
from 22.5° to
27° S
, taken by trawls at depths of
15 to
27 m
.
Norman (1926)
reported
three specimens
,
130–142 mm
total length, collected off
Queensland
during the experimental cruises of
R
/
V
“Endeavour”, 1909–1914, as
Aseraggodes melanostictus
Peters
, previously known from a single specimen taken in
73 m
off New Britain.
Chabanaud (1930a)
found one of Norman’s
three specimens
at the Natural History Museum, London (
BMNH
). Recognizing it as misidentified, he named it in honour of J.
R
. Norman. An additional (non-type) “Endeavour” specimen in the Australian Museum was collected off Gladstone,
23°S
151°E
on
9 Jul 1910
.
Chabanaud (1943)
established the valid genus
Synclidopus
for the species
Solea macleayanus
, but he erred in placing
Aseraggodes normani
as a second species of this genus.