Australian Museum Journal On the status of the Australian serranid fishes Epinephelus ergastularius Whitley and E. thompsoni Whitley
- Shortform:
- Randall et al., 1993, Rec. Aust. Mus. 45(1): 25–31
- Author(s):
- Randall, John E.; Hoese, Douglass F.; Last, Peter R.
- Year published:
- 1993
- Title:
- On the status of the Australian serranid fishes Epinephelus ergastularius Whitley and E. thompsoni Whitley
- Serial title:
- Records of the Australian Museum
- Volume:
- 45
- Issue:
- 1
- Start page:
- 25
- End page:
- 31
- DOI:
- 10.3853/j.0067-1975.45.1993.127
- Language:
- English
- Date published:
- 19 March 1993
- Cover date:
- 19 March 1993
- ISSN:
- 0067-1975
- CODEN:
- RAUMAJ
- Publisher:
- The Australian Museum
- Place published:
- Sydney, Australia
- Subjects:
- FISHES; TAXONOMY
- Digitized:
- 05 February 2009
- Reference number:
- 127
- EndNote package:
- EndNote file
- Title page:
- Title page (83kb PDF)
- Complete work:
- Complete work (2029kb PDF)
Abstract
The grouper Epinephelus ergastularius Whitley, 1930, from New South Wales and Queensland is recognised as a valid species; it is closely related to the wide-ranging Indo-Pacific E. octofasciatus Griffin and the Japanese E. septemfasciatus (Thunberg), sharing with them such characters as one or a few small spines on the ventral margin of the preopercle, seven dark bars on the body of the young, the upper half of the peduncular bar black, and the same meristic data, including nine anal soft rays. It differs in having a truncate to slightly emarginate caudal fin in the adult with a distinct broad pale posterior border, pale borders posteriorly on the dorsal and anal fins of adults, and irregular, fine dermal ridges on the back adjacent to the dorsal-fin base. The young can be distinguished by the unequal spacing between the first four dark bars on the body. Epinephelus chabaudi (Castelnau) of East Africa is also a close relative, differing in having numerous branched pyloric caeca, a prominent black streak above the maxilla in the adult, and in lacking dermal ridges and broad pale borders on the fins. Epinephelus thompsoni Whitley, 1948, is known from a single specimen, taken in 129 to 137 m off Queensland, which has only 13 dorsal soft rays. This grouper name is a junior secondary homonym of E. thompsoni (Fowler, 1923). The name, E. perplexus, replaced the homonym.