Southern Demoiselle, Chrysiptera notialis (Allen 1975)


Other Names: Southern Damsel

A Southern Demoiselle, Chrysiptera notialis, at North Solitary Island, New South Wales, January 2017. Source: Ian Shaw / iNaturalist.org. License: CC by Attribution-NonCommercial

Summary:
A bluish-grey damselfish becoming blackish behind the pectoral fins, with bluish black dorsal, anal, and basal parts of the caudal fin bluish-black, a bright blue margin on the dorsal and anal fins, and the outer half of the caudal fin blue. The species has dusky pelvic fins with a bluish anterior edge and black tips, and pale blue pectoral fins with a blackish spot dorsally at the base. elongate  (depth 2 •3-3-0 in SL), possess elongate posterior dorsal and anal rays and are  predominately blackish in colouration with blue fin margins

Cite this page as:
Bray, D.J. 2022, Chrysiptera notialis in Fishes of Australia, accessed 02 Dec 2022, https://fishesofaustralia.net.au/home/species/339

Southern Demoiselle, Chrysiptera notialis (Allen 1975)

More Info


Distribution

Seal Rocks to Montague Island, New South Wales: also the Lord Howe Province and Norfolk Island in the Tasman Sea. Elsewhere the species occurs in the south-west Pacific: New Caledonia and New Zealand. This is one of the most common damselfishes outside the lagoon at Lord Howe Island. The habitat largely comprises of rocky canyons, ledges and boulders covered with algae.

Features

Dorsal fin XIII, 13-15; Anal fin II, 15-16; Pectoral fin 16-18; Branched caudal rays 13; Gill rakers 20-23; Lateral line, tubed scales 16-18; Vertical scale rows from upper edge of gill opening to base of caudal fin 28; Horizontal scale rows from base of dorsal fin to terminal lateral line scale (exclusive of dorsal base sheath scales) 1.5; Scales from lateral line to anal fin origin 9; Predorsal scales ~ 18-20, extending to level of nostrils.
Body elongate, laterally compressed,  greatest depth: 2.3-2.5 in SL. Horizontal scale rows  between middle of lateral line and dorsal fin base 1.5; predorsal scales reaching  level of nostrils; suborbital and inferior limb of preopercle scaled; teeth uniserial, dorsal-fin outline uniform without incisions between spines.
Dorsal-fin origin at level of second tubed lateral line scale; posterior dorsal and anal rays elongate; caudal fin forked, lobes filamentous.

Etymology

The specific name notialis is from the Greek notos (= southern), in reference to the geographical distribution of this species. It is the most southerly occurring species of Glyphidodontops and a common inhabitant of Lord Howe Island, the world's southernmost coral reef.

Species Citation

Glyphidodontops notialis Allen 1975, Proceedings of the Linnean Society of New South Wales 99(2): 91, pl. 3 (fig. b). Type locality: Lord Howe Island, 15 m. [31°32'S, 159°04'E].

Author

Bray, D.J. 2022

Resources

Atlas of Living Australia

Southern Demoiselle, Chrysiptera notialis (Allen 1975)

References


Allen, G.R. 1975. Damselfishes of the South Seas. New Jersey : T.F.H. Publications 237 pp. 251 figs.

Allen, G.R. 1975. Four new damselfishes (Pomacentridae) from the southwest Pacific. Proceedings of the Linnean Society of New South Wales 99(2): 87-99 figs 1-5  See ref at BHL

Allen, G.R. 1991. Damselfishes of the World. Melle, Germany : Mergus Verlag 271 pp. 

Allen, G. R. 2001. Family Pomacentridae. pp. in Carpenter, K.E. & Niem, T.H. (eds). The Living Marine Resources of the Western Central Pacific. FAO Species Identification Guide for Fisheries Purposes. Rome : FAO Vol. 6 pp. 3381-4218. 

Allen, G.R., Hoese, D.F., Paxton, J.R., Randall, J.E., Russell, B.C., Starck, W.A., Talbot, F.H. & Whitley, G.P. 1976. Annotated checklist of the fishes of Lord Howe Island. Records of the Australian Museum 30(15): 365-454 figs 1-2 

Choat, J.H., van Herwerden, L., Robbins, W.D., Hobbs, J.P. & Ayling, A.M. 2006. A report on the ecological surveys undertaken at Middleton and Elizabeth Reefs, February 2006. Report by James Cook University to the Department of the Environment and Heritage. 65 pp. 

Francis, M. 1993. Checklist of the coastal fishes of Lord Howe, Norfolk, and Kermadec Islands, southwest Pacific Ocean. Pacific Science 47(2): 136-170 figs 1-2 

Francis, M.P. 2019. Checklist of the coastal fishes of Lord Howe, Norfolk and Kermadec Islands, southwest Pacific Ocean, Version: 2019.1, https://doi.org/10.6084/m9.figshare.c.4428305

Gill, A.C. & Reader, S.E. 1992. Fishes. pp. 90-93, 193-228 in Hutchings, P. (ed.) Reef Biology. A Survey of Elizabeth and Middleton Reefs, South Pacific. Canberra : Australian National Parks Vol. 3, Kowari 230 pp. 

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

Liggins, L., Kilduff, L., Trnski, T., Delrieu-Trottin, E., Carvajal, J., et al. 2022. Morphological and genetic divergence supports peripheral endemism and a recent evolutionary history of Chrysiptera demoiselles in the subtropical South Pacific. Coral Reefs 41: 1-16. https://doi.org/10.1007/s00338-021-02179-7

Oxley, W.G., Ayling, A.M., Cheal, A.J. & Osborne, K. 2004. Marine surveys undertaken in the Elizabeth and Middleton Reefs Marine National Nature Reserve, December 2003. Townsville : Australian Institute of Marine Sciences 64 pp. 

Stewart, A.L., Roberts, C.D. & Struthers, C.D. 2015. Family Pomacentridae. pp. 1406-1423 in Roberts, C.D., Stewart, A.L. & Struthers, C.D. (eds). The Fishes of New Zealand. Wellington : Te Papa Press Vol. 4 pp. 1153-1748.

Quick Facts


CAAB Code:37372065

Depth:7-45 m

Habitat:Reef associated

Max Size:9 cm TL

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CAAB distribution map