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Service Notice

The Western Australian Herbarium’s collections management system, WAHerb, and DBCA’s flora taxonomic names application, WACensus, have been set to read-only mode since 1 October 2025. Recent taxonomic changes are not currently being reflected in Florabase, herbarium collections, or the census. Due to the rapidly approaching holiday season and associated agency and facility soft closures, along with the substantial work involved in data mapping, cleaning, and verification, the migration to the new collection management software is not expected to occur before 1 March 2026, when a further update will be provided. Please reach out to us if you have any questions or concerns.

The notice period started at 9:45 am on Friday, 12 December 2025 +08:00 and will end at 12:00 pm on Monday, 2 March 2026 +08:00.

Caulerpa brachypus Harv.

Reference
Proc.Amer.Acad.Arts 4:333 (1860)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Scientific Description

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)]

John Huisman and Cheryl Parker, 3 August 2021

Distribution

IBRA Regions
Carnarvon, Indian Tropical Islands.
IBRA Subregions
Cape Range.
IMCRA Regions
Ningaloo, Pilbara (nearshore), Pilbara (offshore).
Local Government Areas (LGAs)
Ashburton, Cocos Islands, Exmouth, Karratha, Port Hedland.