New record of the cuskeel genus Neobythites (Pisces, Ophidiidae) from the Solomon Sea with description of a new species and notes on colour patterns
Author
Uiblein, Franz
Author
Nielsen, Jørgen G.
text
Cybium
2021
45
2
83
88
http://dx.doi.org/10.26028/cybium/2021-452-001
journal article
10.26028/cybium/2021-452-001
2101-0315
12712488
3E6E0B6F-E657-4942-9D57-68661FB3D571
Neobythites solomonensis
n. sp.
– Striped Cuskeel
(
Figs 1
,
2
;
Tab. I
)
Holotype
. –
MNHN 2006-0322
, female, SL
166 mm
, Solomon Sea,
8°57’S
,
157°48’E
, Camp. Salomon 2; 2004,
RV
Alis
, st. cp2273, 732-
839 m
, beam trawl,
5 Nov. 2004
.
Paratypes
(n = 4, SL
137-162 mm
). –
MNHN 2002- 3834
,
2 specimens
, SL
137-162 mm
, Solomon Sea,
9°20’S
,
159°56’E
, Camp. Salomon 1
,
RV
Alis
, st. cp1749, 582-
594 m
, beam trawl,
25 Sep. 2001
;
MNHN 2002-3891
, SL
145 mm
, Solomon Sea,
8°12’S
,
160°41’E
, Camp. Salomon 1
,
RV
Alis
, st. dw1775, 498-
600 m
, dredge,
28 Sep. 2001
;
MNHN 2006-0725
, female, SL
150 mm
, Solomon Sea,
7°37’S
,
157°45’E
, Camp. Salomon 2, 2004
,
RV
Alis
, st. cp2214, 550-
682 m
, beam trawl,
26 Oct. 2004
.
Figure 1. –
Neobythites solomonensis
n. sp.
;
A
,
B
: MNHN 2006-0322, HT, female, 166 mm SL;
C
,
D
: MNHN 2006-0725, PT, female, 150 mm SL (M. Krag).
Diagnosis
Hind margin of preoperculum with two spines; distal part of dorsal fin and posterior two thirds of anal fin mostly dark-brown greyish pigmented; pelvic fins not reaching beyond anus; distinct lateral body stripe at eye level from behind opercle to tail region; dark-brown or grey dorsal-fin margin; anal fin dark pigmented along posterior third; ocelli and dark vertical bars absent; dorsal fin-rays 100-109; anal fin-rays 84-90; pectoral fin-rays 27-28; precaudal vertebrae 13; total vertebrae 58-61; long rakers on anterior gill arch 12-14; longest filament on anterior gill arch 4.6-5.3% head length.
Description
The principal meristic and morphometric characters are shown in table I. The morphological description is mostly based on the
holotype
: Elongate fish with complete, brown lateral line running close to dorsal edge; head and body covered with deciduous scales; origin of dorsal fin above middle of pectoral fin; origin of anal fin slightly in front of midpoint of fish; snout blunt and equal in length to diameter of eye window; anterior nostril with a small tube and posterior nostril a mere hole; two spines on hind margin of preoperculum; opercular spine strong; anterior gill arch with two short and three long rakers on upper branch, one long raker in the angle and lower branch with ten long and seven short rakers (
paratypes
with a total of 12-14 long and 7-9 short rakers); gill rakers on anterior arch 2-3 times the length of gill filaments. Pseudobranchial filaments indistinct.