Caulerpa brachypus Harv.
Proc.Amer.Acad.Arts 4:333 (1860)

Conservation Code: Not threatened
Naturalised Status: Native to Western Australia
Name Status: Current


Beard’s Provinces: Eremaean Province.

IBRA Regions: Carnarvon.

IBRA Subregions: Cape Range.

IMCRA Regions: Pilbara (nearshore), Pilbara (offshore).

Local Government Areas (LGAs): Ashburton, Cocos Islands, Exmouth, Karratha, Port Hedland.

Scientific Description
John Huisman and Cheryl Parker, Thursday 8 September 2016

Habit and structure. Thallus grass-green to olive-green, spreading laterally to 40–50 cm, with smooth terete stolons 2–3 mm diam., attached to the substratum by pillars bearing dense rhizoidal clusters. Assimilators with short basal terete stalks to 7 mm long, then flattened, simple or branched, ligulate, to 9 cm tall and 5–18 mm wide, generally of uniform width or tapering slightly, rarely sinuous or with constrictions. Ramuli absent, assimilators usually with minute widely spaced spines at the margins and an apical notch.

Distribution. Widely distributed in the tropical Pacific and Indian Oceans as well as the Caribbean Sea. In W.A. it occurs south to Ningaloo Reef.

Habitat. Epilithic in sandy areas of the lower intertidal and subtidal.

[After Belton, Huisman & Gurgel, Algae of Australia: Mar. Benthic Algae of North-western Australia, 1. Green and Brown Algae 80 (2015)]