Caulerpa delicatula Grunow
Askenasy, Forschungsr.Gazelle, Bot.Alg. 4(2):15, Pl. II, Fig. 8 (1888)

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


Beard’s Provinces: Eremaean Province.

IBRA Regions: Carnarvon, Yalgoo.

IBRA Subregions: Cape Range, Edel.

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

Local Government Areas (LGAs): Ashburton, Exmouth, Greater Geraldton, Shark Bay.

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

Habit and structure. Thallus basally pale green, distally dark green, spreading laterally to 10 cm; stolons 0.5–1.0 mm diam., usually densely covered with fine rhizoids that retain particulate matter from the substratum. Rachis simple or sparingly branched, to 20 mm tall and 1.5–2.0 mm wide, with a covering of unbranched filiform ramuli on all sides, these cylindrical, 100–120 µm diam., with pointed apices.

Distribution. Occurs in Papua New Guinea, Indonesia and W.A. where it is known from the Houtman Abrolhos Islands and Ningaloo Reef north to Barrow Island.

Habitat. Associated with sandy or silty substrata, from the intertidal to the shallow subtidal.

[After Belton, Huisman & Gurgel, Algae of Australia: Mar. Benthic Algae of North-western Australia, 1. Green and Brown Algae 87 (2015)]