Revision of the subgenus Parapterygotrigla (Pisces: Triglidae: Pterygotrigla)
Author
Richards, William J.
Author
Yato, Takuji
text
Zootaxa
2014
3768
1
23
42
journal article
36895
10.11646/zootaxa.3768.1.2
6e8d46da-92c6-4fb4-9009-ef22cfed4d10
1175-5326
285601
D18F9ED3-D883-4413-B509-F1BB9E12FB96
Pterygotrigal (Parapterygotrigla) robertsi
del
Cerro & Lloris 1997
Roberts’ Gurnard
(
Figures 6 A
–B,
Tables 1
&
2
)
Pterygotrigla robertsi
del
Cerro & Lloris 1997
:117
–119 (original description, illustration,
New Caledonia
).
Parapterygotrigla
sp. “C”. www.marine.csiro.au/caab/caabsearch-frames.htm.
Material examined.
CSIRO
H832.02,
307 mm
SL,
Australia
, Queensland, Marion Plateau, Marion Reef, 20o25.8’ to
20o23.6’S
,
152o57.7’E
, FRV Soela, sta.
6/85/27
,
22 Nov. 1985
, 508–
511 m
depth. In addition, L. del Cerro provided original data from the
holotype
MNHN
1994-
25, 152 mm
SL,
New Caledonia
, Stylaster Seamount,
23o37.7’ S
,
167o43.7’E
, Beryx II, sta.
32, 420–460 m
depth (also cataloged as
NMNZ
P-
29291).
Diagnosis.
Buckler in advance of D1 fin present, antrorse AIO spine absent, anterior AIO spines short (7–10% SL), P1 fin long (47–55% SL), P1 fin 1st free ray long (33% SL), eye moderate (10–11% SL), snout long (16–20% SL), nape and breast lack scales, belly with scales, 9–12 short gill rakers (2%SL), dark pigment on dorsum of
holotype
(see
Fig. 6
B).
Description.
D
1 VIII
, D2 12, A 12, P1, long (47–55% SL) 11–12 + 3, 9–10 bucklers along base of D1, GR 9–12 short + rudiments, llsc 59–63, nape and breast lack scales, nuchal spine strong (11% SL), no ocular spines, opercular spine short reaching to gill opening, preopercular spine short reaching to gill opening, preopercular ridge present, cleithral spine long (15% SL).
Coloration.
Del
Cerro & Lloris (1997)
describe the color in alcohol as follows: “general coloration yellowish, head slightly darker, ventral flanks below cleithral spine and ventral side anteriorly to the vent are shadowed. Traces of dark markings on D I fin between spines 1–6, pectoral fin blackish except uppermost ray and 3 lowermost which are pale, free rays pale as well as other fins”. There is a dark irregular patch on the dorsum below the D1 fin of the
holotype
(see
Fig. 6 A
) that is not mentioned in the original description. The Queensland specimen did not have any pigmentation on its dorsum nor was any dark pigment detected on the dorsal, anal and caudal fins. The P1 fin was dusky with a light border.
Distribution.
Coral Sea endemic, southwestern Pacific. Rare in collections; known only from Stylaster Seamount, off
New Caledonia
and Marion Reef off Queensland,
Australia
. L. del Cerro (pers. comm.) notes another specimen from
Vanuatu
.