RESEARCH ARTICLE
Callionymus petersi,
a new species of dragonet from New Ireland, Papua
New Guinea, western Pacific Ocean (Teleostei: Callionymidae)
Ronald Fricke
Abstract
A new species of dragonet,
Callionymus petersi from northern New Ireland
Province, Papua New Guinea, is described on the basis
of five specimens collected with dredges and trawls
in about 181–207 m depth from off northwestern New
Hanover and off Kavieng. The new species is characterized
within the subgenus Bathycallionymus by a short
head (3.9–4.3 in SL); eye large (2.1–2.3 in head length);
preopercular spine with a long, slightly upcurved
main tip, a small antrorse serra followed by two large
curved points on its dorsal margin and a strong antrorse
spine at its base, ventral margin smooth, slightly
concave; first dorsal fin higher than second dorsal
fin in the male, slightly lower than second dorsal
fin (female), with 4 spines, first spine filamentous
(male only); second dorsal-fin high, distally convex
(male) or low, distally nearly straight (female),
with 9 unbranched rays (last divided at base); anal
fin with 9 unbranched rays (last divided at base);
18 pectoral-fin rays; caudal fin elongate (male),
the two median rays unbranched, elongate but barely
filamentous (male), or distally rounded, without filaments
(female); pectoral-fin base with a large dark blotch;
sides of body with a series of dark blotches, each
of the anterior blotches broken into 2–4 vertical
dark streaks; first dorsal fin with a large ocellated
black blotch extending over the second and third membranes
(male), or mostly confined to the third membrane (female);
second dorsal fin pale (male) or spotted with grey;
anal fin distally dark (male), with distal dark spots
(female); caudal fin with a grey streak in lower section
(male), or lowermost membrane black (female). The
new species is compared with similar species. Revised
keys to callionymid fish species of New Guinea, as
well as of the subgenus Bathycallionymus, are
presented.
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CITATION:
Fricke, R. (2016) Callionymus
petersi, a new species of dragonet from New Ireland,
Papua New Guinea, western Pacific Ocean (Teleostei:
Callionymidae). Journal of the Ocean Science Foundation,
21, 38-57.
https://doi.org/10.5281/zenodo.53743
publication date: 29 May
2016
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