Acropora solitaryensis
Veron and Wallace, 1984
Description: Colonies consist of flat, highly fused, basal branches with irregular upright branchlets. Colonies may be over 2 metres across and can sometimes form a single solid plate. Axial corallites are tubular and distinct. Radial corallites are immersed on older parts of colonies, becoming tubular with nariform openings on peripheral parts.
Color: Dark brown or green.
Habitat: Shallow reef environments and rocky foreshores in subtropical locations.
Abundance: Common at subtropical locations, rare elsewhere.
Similar Species: Acropora natalensis and A. branchi. See also A. glauca, which has a similar growth-form but has rounded peripheral corallites and indistinct axial corallites. Acropora divaricata and A. stoddarti may have similar corallites; the former seldom forms flat plates, the latter always does. Colonies in some exposed habitats resemble A. irregularis.
Taxonomic note: This species is divisible into several smaller semi-distinct taxonomic units. Source reference: Veron (2000). Taxonomic reference: Veron and Wallace (1984). Identification guides: Veron (1986), Nishihira and Veron (1995).
Surface detail of a plate. Dampier Archipelago, Western Australia Photograph: Charlie Veron
Nearly solid tiered plates. Kyushu, Japan Photograph: Charlie Veron
Common appearance of a plate margin. Houtman Abrolhos Islands, south-west Australia Photograph: Charlie Veron
An irregular plate margin. Solitary Islands, south-east Australia Photograph: Charlie Veron
Skeletal detail. Axial and radial corallites.