Teleostei (teleosts) >
Syngnathiformes (Pipefishes and seahorses) >
Syngnathidae (Pipefishes and seahorses) > Syngnathinae
Etymology: Phyllopteryx: Greek, phyhllon = leaf + Greek, pteryx = wing, fin (Ref. 45335); dewysea: Named for Mary ‘Dewy’ Lowe, for her love of the sea and her support of seadragon conservation and research.
Eponymy: Mary ‘Dewy’ Lowe was honoured “for her love of the sea and her support of seadragon conservation and research”. She is the co-founder of the Lowe Family Foundation. The binomial apparently combines her nickname with the English word ‘sea’. (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 50 - 72 m (Ref. 100032). Tropical
Eastern Indian Ocean: Western Australia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 25.9 cm TL male/unsexed; (Ref. 100032)
Short description
Identification keys | Morphology | Morphometrics
This species is distinguished by its red colour, and pink vertical bars that extend halfway up the body to the lateral trunk ridges; it has 18 trunk segments; head crest without appendage; enlarged pectoral area; dorsally enlarged spine on trunk ring 11 that is pointed forward; a pair of enlarged ventral spines on rings 8 and 17; the body deepest on ring 12, behind dorsal spine; spines on lateral trunk ridge are not continuous with lateral tail ridges (Ref. 100032).
Body shape (shape guide): other; Cross section: angular.
Occurs more offshore in slightly deeper waters; at 50+m with complex habitat of a mixed reef and sandy habitat with two paratypes collected from the continental shelf (Ref. 100032).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Stiller, J., N.G. Wilson and G.W. Rouse, 2015. A spectacular new species of seadragon (Syngnathidae). R. Soc. Open Sci. 2(140458.):1-12. (Ref. 100032)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
Fisheries: bycatch
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