Synopsis of the Grenadier Fishes (Gadiformes; Teleostei) of Taiwan
Author
Iwamoto, Tomio
Section of Ichthyology, California Academy of Sciences, 55 Music Concourse Drive, San Francisco, CA 94118, USA;
Author
Nakayama, Naohide
Laboratory of Marine Biology, Faculty of Science, Kochi University, 2 - 5 - 1 Akebono-cho, Kochi, 780 - 8073, Japan;
Author
Shao, Kwang-Tsao
Research Center for Biodiversity, Academia Sinica No. 128, Sec. 2, Academia Road, Nankang, Taipei 115, Taiwan;
Author
Table, Hsuan-Ching Ho
text
Proceedings of the California Academy of Sciences
2015
2015-04-15
62
3
31
126
journal article
299670
10.5281/zenodo.11512126
522b8de7-880d-40ca-803e-aa5a3a05c5f6
0068-547X
11512126
Nezumia spinosa
(Gilbert and Hubbs, 1916)
Figures 20A–B
.
Lionurus spinosus
Gilbert and Hubbs, 1916:199–200
, pl. 10, fig.2 (
holotype
,
USNM 76868
,
East
China
Sea
off
Japan
, 427 fm [
781 m
]).—
Gilbert
and
Hubbs
1920:554 (
4 spec.
, off
Luzon
,
Philippines
).—
Okamura, 1970:94
(in part; in synonymy of
Nezumia proximus
).
Nezumia spinosa
: Okamura
in
Masuda et al., 1984:95
, pl. 345–A (compiled).—
Iwamoto, 1990:254
, fig. 582 (in key).— Iwamoto and Anderson, 1994:18–19 (
22 spec.
, 26.3–44.2 HL;
117–255 mm
TL, s. Africa and
Mozambique
,
560–1000 m
).— Iwamoto and
Merrett, 1997:542–545
, fig. 29b (
8 spec.
, 20–54.2 HL, 133–319 TL; sw. Pacific,
Japan
, South
China
Sea,
660–900 m
).— Iwamoto and Williams, 1999: 202–204, fig. 43b (
8 spec.
, 33.3–51.1 HL, 140–260+ TL, Western Australia,
420–853 m
).— Merrett and Iwamoto, 2000:772–773 (
1 spec.
, 45 HL, 250+ TL; Norfolk Ridge [sw. Pacific],
640–740 m
).—
Shao et al., 2008
: table 2 (
3 spec.
,
Taiwan
[
SWT
,
SCS
],
316–720 m
; first record from Taiwan).
MATERIAL
EXAMINED
(
6 spec.
).—
SWT
:
ASIZP 65545
(1, 170 TL), CD 137, 316–
477 m
;
ASIZP 67586
(2, 105+-160+TL), CP
338, 569 m
;
ASIZP 67591
(1, 34 HL, 159+ TL); CP
338,
569 m.
SCS
:
ASIZP 66747
(1, 216+ TL), CD
320, 731 m
;
ASIZP 66817
(1, 127+ TL), CP
315,
509 m.
DISTINGUISHING
FEATURES
.— 1D II,9–10 (rarely 8 or 12); P i18–i22;
V
8–9; inner GR-I 9–12 total; scale rows below midbase 1D 6.5–9, below 2D 7.5–11; lateral line scales over distance equal to predorsal length 35–42; pyl. caeca 15–16 (13–14 fide Iwamoto and Anderson 1994:18). Snout length 28–32% HL; preoral length 18–29%; interorbital 18–24%; orbit 29–31%; orbit to preopercle 34–40%; suborbital 12–14%; upper jaw 27–33%; barbel 9–18%. Body relatively slender, compressed; head about
5–6 in
TL; snout conical, protruding well beyond mouth, with stout tubercles at tip and lateral angles; suborbital ridge sharp and beset with stout modified scales; underside of head almost completely naked, with large pores; body scales densely covered with long, needle-like spinules in parallel to convergent rows. Long spinous ray of 1D 96–156% HL, serrations widely spaced. Anterior dermal window of light organ prominent, situated between V-fin bases. Color overall light brown, blackish over abdomen; gill cover, gill membranes dark; mouth and gill cavities black; 1D blackish proximally, pale to whitish distally,
V
black, P and A dusky. Attains about
320 mm
TL.
FIGURE
20.
Nezumia spinosa
(Gilbert and Hubbs, 1916)
. A. ASIZP 67586, 105 mm TL, fresh. B. ASIZP66817, 127+ mm TL, preserved.
DISTRIBUTION
.— A widespread
Indo-Pacific
species; s.
Japan
through
Philippines
,
Indonesia
, s. to
New Caledonia
region, w. coast of
Australia
, and s.
Africa
, in
316–1000 m
.
Our
Taiwan
specimens were taken in
316–731 m
.
REMARKS
.—
Shao et al. (2008)
first recorded the species from
Taiwan
based on the current specimens.