Teleostei (teleosts) >
Syngnathiformes (Pipefishes and seahorses) >
Syngnathidae (Pipefishes and seahorses) > Syngnathinae
Etymology: larsonae: Named for Helen Larson (Ref. 37244).
Eponymy: Dr Helen K Larson was Curator of Fishes, Museum and Art Gallery of the Northern Territory, Darwin, Australia (1981–2009), retiring as Emeritus Curator, and is now a Research Associate at the Museum of Tropical Queensland, Townsville. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 3 - 9 m (Ref. 5316). Tropical
Eastern Indian Ocean: known only off Alpha Island, Monte Bello Islands, Western Australia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Short description
Identification keys | Morphology | Morphometrics
Found clinging to attached Sargassum sp. On a sheltered coral reef. Probably not exceeding about 5 cm TL. Males may be mature at 3.35 cm TL. Ovoviviparous (Ref. 205). Males with brood pouch; females with ovipositor (Ref. 205).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Male carries the eggs in a brood pouch (Ref. 205).
Dawson, C.E., 1985. Indo-Pacific pipefishes (Red Sea to the Americas). The Gulf Coast Research Laboratory Ocean Springs, Mississippi, USA. (Ref. 5316)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
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