Castelnau's Wrasse, Dotalabrus aurantiacus (Castelnau 1872)


Other Names: Castelnau's Parrotfish, Ornate Wrasse, Pretty Dolly, Pretty Polly

Castelnau's Wrasse, Dotalabrus aurantiacus, at Rapid Bay Jetty, South Australia, December 2003. Source: Erik Schlogl / iNaturalist.org. License: CC by Attribution-NonCommercial

Summary:

A small variably coloured wrasse endemic to south Western Australia. Juveniles and females are greenish to pale red with five irregular vertical bars on the sides and a spot at the rear of the dorsal and anal fins. Males are variable in colour, reddish to yellowish brown, orange or greenish, with four broken dark bars on sides, dark margins to the dorsal, anal and caudal fins, and dark lines radiating from the eye.

Castelnau's Wrasse swims almost vertically in short bursts, bobbing up and down amongst the algae.


Cite this page as:
Bray, D.J. 2018, Dotalabrus aurantiacus in Fishes of Australia, accessed 23 Jan 2020, http://136.154.202.208/home/species/228

Castelnau's Wrasse, Dotalabrus aurantiacus (Castelnau 1872)

More Info


Distribution

Endemic to southern Australia from South of Point Hicks, Victoria,  eastern and northern Tasmania, to Rottnest Island, Western Australia. This cryptic species inhabits seagrass beds, and less commonly shallow algal covered reefs in sheltered bays and estuaries, and possibly over sand in deeper waters. 

Like most wrasses, Castelnau's Wrasse is territorial or has a home range. Individuals are active during the day, swimming almost vertically in a characteristic bobbing fashion. They seek shelter at night by bury in the sand.

Features

Meristic features:

Size

To a total length of 15 cm, most smaller.

Colour

Juveniles and females: greenish or pale reddish with 5 irregular dark brown or black bars on the sides; blackish markings radiating from the eyes; a large black ocellus at the rear of the dorsal and anal-fin bases, especially in juveniles; outer two-thirds of pelvic fin dusky brown.

Males: variable in colour from pale reddish brown, yellowish brown, bright green to orange with 5 irregular dark brown or greyish bars on sides, or a dark irregluar band on the back; black spots or markings radiating from the eyes; dorsal, anal an dcaudal fins with black edges and markings; outer two-thirds of pelvic fins black.

Feeding

Thought to be fairly generalised carnivores with well-developed canine teeth in the jaws and robust pharyngeal teeth. The anterior canines are forwardly curved, the anterior teeth in the upper and lower jaws are enlarged, recurved canines.

Conservation

IUCN Red List: Least Concern

Remarks

Synonyms:

Cheilinus aurantiacus Castelnau, 1872

Labrichthys elegans Steindachner, 1883

Labrichthys macleayi Herzenstein, 1896

Pseudolabrus aurantiacus (Castelnau, 1872)

Pseudolabrus elegans (Steindachner, 1883)

Pseudolabrus macleayi (Herzenstein, 1896)

Similar Species

Differs from the Little Rainbow Wrasse, Dotalabrus alleni, the only other species in the genus, in colour pattern, and in having dusky pelvic fins and a moderately long first dorsal-fin spine (vs clear pelvic fins and a moderately short first dorsal-fin spine).

Etymology

The specific name aurantiacus is from the Latin aurantium, meaning 'orange', and -acus, meaning 'of' or 'pertaining to', presumably in reference to the orange colour of the type specimens of this species.

Species Citation

Cheilinus aurantiacus Castelnau 1872, Proc. Zool. Acclim. Soc. Vict. 1: 245. Type locality: Adelaide, St. Vincent Gulf, South Australia.

Author

Bray, D.J. 2018

Resources

Australian Faunal Directory

Castelnau's Wrasse, Dotalabrus aurantiacus (Castelnau 1872)

References


Castelnau, F.L. de 1872. Contribution to the ichthyology of Australia. 2. Note on some South Australian fishes. Proceedings of the Zoological and Acclimatisation Society of Victoria 1: 243-248 

Edgar, G.J. 2008. Australian Marine Life: the plants and animals of temperate waters. Sydney : Reed New Holland 2nd edn, 624 pp.

Gomon, M.F. &. Russell, B.C. 1994. Family Labridae. pp. 675-699 in Gomon, M.F., Glover, C.J.M. & Kuiter, R.H (eds). The Fishes of Australia's South Coast. Adelaide : State Printer 992 pp. 

Grant, E.M. 1991. Fishes of Australia. Brisbane : EM Grant Pty Ltd 480 pp. 

Herzenstein, S.M. 1896. Ueber einige neue und seltene Fische des Zoologischen Museums der Kaiserlichen Akadamie der Wissenschaften. Annuaire du Musée Zoologique de l'Académie Impériale des Sciences. St. Petersbourg1: 1-14 (as Labrichthys macleayi)

Hutchins, J.B. 2001. Biodiversity of shallow reef fish assemblages in Western Australia using a rapid censusing technique. Records of the Western Australian Museum 20: 247-270.

Hutchins, J.B. 2005. Checklist of marine fishes of Recherche Archipelago and adjacent mainland waters. pp. 425-449 in Wells, F.E., Walker, D.I. & Kendrick, G.A. (eds). Proceedings of the Twelfth International Marine Biological Workshop: The Marine Flora and Fauna of Esperance, Western Australia. Perth : Western Australian Museum. 

Hutchins, J.B. & Swainston, R. 1986. Sea Fishes of Southern Australia. Complete field guide for anglers and divers. Perth : Swainston Publishing 180 pp. 

Kuiter, R.H. 1993. Coastal Fishes of South-eastern Australia. Bathurst : Crawford House Press 437 pp.

Kuiter, R.H. 1996. Guide to sea fishes of Australia. A comprehensive reference for divers and fishermen. Sydney, NSW, Australia : New Holland Publishers pp. I-xvii + 1-434.

Kuiter, R.H. 2002. Fairy and rainbow wrasses and their relatives – a comprehensive guide to selected labrids. TMC Publishing, Chorleywood, UK.

Kuiter, R.H. 2010. Labridae fishes: wrasses. Seaford, Victoria, Australia : Aquatic Photographics pp. 398. 

Last, P.R., Scott, E.O.G. & Talbot, F.H. 1983. Fishes of Tasmania. Hobart : Tasmanian Fisheries Development Authority 563 pp. figs.

McCulloch, A.R. & Waite, E.R. 1918. Some new and little known fishes from South Australia. Records of the South Australian Museum (Adelaide) 1(1): 39-78 figs 26-31 pls 2-7 (as Pseudolabrus aurantiacus)

Russell, B.C. 1988. Revision of the labrid fish genus Pseudolabrus and allied genera. Records of the Australian Museum Suppl. 9: 1-72, plus addendum after plates., col. Pls. 1-4. PDF Open access

Russell, B.C. & Gomon, M.F. 2008. Family Labridae. pp. 638-659 in Gomon. M.F., Bray, D.J. & Kuiter, R.H (eds). Fishes of Australia's Southern Coast. Sydney : Reed New Holland 928 pp.

Russell, B., Pollard, D. & Choat, J.H. 2010. Dotalabrus aurantiacus. The IUCN Red List of Threatened Species 2010: e.T187457A8540761. http://dx.doi.org/10.2305/IUCN.UK.2010-4.RLTS.T187457A8540761.en. Downloaded on 12 March 2016.

Scott, T.D., Glover, C.J.M. & Southcott, R.V. 1974. The Marine and Freshwater Fishes of South Australia. Adelaide : Government Printer 392 pp. figs.

Steindachner, F. 1883. Ichthyologische Beiträge (XIII). Anzeiger der Akademie der Wissenschaften in Wien 20(22): 194-197 (as Labrichthys elegans)

Waite, E.R. 1921. Illustrated catalogue of the fishes of South Australia. Records of the South Australian Museum (Adelaide)2(1): 1-208 293 figs pl. 1 (as Pseudolabrus macleayi)

Whitley, G.P. 1930. Five new generic names for Australian fishes. The Australian Zoologist 6(3): 250-251

Quick Facts


CAAB Code:37384018

Biology:Hermaphrodite

Conservation:IUCN Least Concern

Depth:1-47 m

Habitat:Rocky reef, seagrass beds

Max Size:15 cm TL

Native:Endemic to Australia

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CAAB distribution map