Bathyal and abyssal hydroids (Hydrozoa, Leptothecata) from southeastern Australia

Abstract

Watson, J.E. 2019. Bathyal and abyssal hydroids (Hydrozoa, Leptothecata) from southeastern Australia. Memoirs of Museum Victoria 78: 65–72. A biological survey of the zone extending from Tasmania (40 S) to southern Queensland (25 S) and into the Coral Sea (23 S) was carried out along the south-eastern continental margin of Australia in 2017. Hydroids collected included three known species (Acryptolaria angulata, Cryptolarella abyssicola and Zygophylax concinna), three new species (Amphisbetia ramifera, Hebella macroplana and Lytocarpia parvispiralis) and two genera (Hebella and Halecium) not identified to species. C. abyssicola was the predominant species in terms of abundance and geographical range.