The Clark's Threefin is a moderately elongate fish with an almost cylindrical body. The dorsal fin comprises three parts, the first and second are spiny, but the third consists of soft rays. source: Australian Museum Factsheets
| RLS profile v3 | |
| Habitat: | Reef |
| Common_Name: | Common threefin;Clark's threefin; common threefin; Macleay’s threefin |
| Invasive: | Not known to be invasive |
| Commercial_Uses: | None, other than trivial captures for aquarium trade |
| Threats: | No major threats to this species are known |
| Distribution: | Rottnest I, WA, to Coffs Harbour, NSW, and around Tas. |
| Range: | 768.003 |
| Depth: | 0–30 m |
| Description: | Clark’s threefin has a pink or brown body with a prominent stripe below the eye. It is perhaps the most abundant fish on coastal reefs but is difficult to observe because it generally remains in caves or under ledges |
| IUCN_Threat_status: | Not assessed |
| Frequency: | 0.708 |
| similar_species: | Two almost identical species with similar colouration and a stripe below the eye have also been recorded from the south coast. trinorfolkia incisa, a very small species (<30 mm) found between Esperance and Wilsons Promontory, has a first dorsal fin with the webbing between the spines deeply indented. The rare SA species trinorfolkia cristata has a first dorsal fin higher than the second; in T. clarkei it is lower |
| Behaviour: | The species also occurs in estuaries, where it is often found around jetty pylons |
| Abundance: | 1.655 |
| Max_size: | 80 mm |
| Synonyms: | Norfolkia clarkei |
| Accepted name | Source |
|---|---|
| Trinorfolkia clarkei |
| Synonyms | Source |
|---|---|
| Tripterygion striaticeps Ramsay & Ogilby, 1888 | |
| Published in: Ramsay, E.P. & Ogilby, J.D. 1888. Description of a new Tripterygium from Port Jackson. Proc. Linn. Soc. N.S.W. Vol. 3 (2) pp. 419-420 | |
| Tripterygium clarkei Morton, 1888 | |
| Published in: Morton, A. 1888. Description of two new fishes. Pap. Proc. R. Soc. Tas. Vol. 1887 pp. 77-78 fig. 1 | |
| Tripterygium macleayanum Lucas, 1891 | |
| Published in: Lucas, A.H.S. 1891. On the occurrence of certain fish in Victorian seas, with descriptions of some new species. Proc. R. Soc. Vict. Ser. ns Vol. 3 (2) pp. 8-14 pl. 3 | |
| Tripterygion whitleyi Scott, 1977 | |
| Published in: Scott, E.O.G. 1977. Observations on some Tasmanian fishes. Part 23. Pap. Proc. R. Soc. Tas. Vol. 111 pp. 111-180 figs 1-3 | |
| Common name | Source |
|---|---|
| Clark's Threefin | |
| Clark's Triplefin | |
| Clarke's Triplefin | |
| Common Threefin | |
| Macleay's Threefin | |
| Rock Blenny |
View list of all occurrence records for this taxon
