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> Syngnathiformes (Pipefishes and seahorses) > Syngnathidae (Pipefishes and seahorses) > Syngnathinae
Etymology: Hippocampus: Greek, ippos = horse + Greek,kampe = curvature (Ref. 45335); waleananus: Named for its type and only confirmed locality Walea Island, Sulawesi, Indonesia, where this species occurs and the Latin nanus for "dwarf"..

Issue
Junior synonym in Lourie et al., 2016; valid in ECoff., 2023.

Environment: milieu / climate zone / depth range / distribution range Ecologia

marino benthopelagico; non migratori; distribuzione batimetrica 5 - 20 m (Ref. 80667). Tropical

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

Western Central Pacific: Indonesia.

Size / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 1.8 cm SL maschio/sesso non determinato; (Ref. 80667)

Short description Chiavi di identificazione | Morfologia | Morfometria

Raggi dorsali molli (totale) : 12. This species is distinguished by the following characters: size extremely small (height 1.68 cm, 1.78 cm SL); trunks rings 12; tail elongate, 32 tail rings; D 12; pectoral fin rays 9; no anal fin (at least in one sex); apparently eggs brooded within trunk; medium length snout which lacks a bulbous tip; coronet raised and angular; fused gill openings on midline behind the coronet supported by raised cleithral girdle; enlarged knob-like structures on head and trunk; paired laterally directed knob-like structures and each with short fleshy filament on superior trunk ridge of the fifth trunk ring; last 28 tail rings each with small paired knobs on inferior tail ridge, fifth, ninth and twelfth tail rings with bilaterally paired enlarged knob-like structures on superior tail ridges. Colouration: pale pinkish to yellowish with red to brown blotches, radiating bands from eye; body protuberances are white, appearing as white spots (Ref. 80667).

Found in association with the soft coral Nephtea, but has also been observed swimming lengthy distances from one coral to the next (Ref 90102).

Life cycle and mating behavior Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve

Male carries the eggs in a brood pouch (Ref. 205).

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

Short, G., R. Smith, H. Motomura, D. Harasti and H. Hamilton, 2018. Hippocampus japapigu, a new species of pygmy seahorse from Japan, with a redescription of H. pontohi (Teleostei, Syngnathidae). ZooKeys 779:27-49. (Ref. 118476)

IUCN Red List Status (Ref. 130435)

Not Evaluated

CITES

Appendix II: International trade monitored

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

Informazioni ulteriori

Trophic ecology
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Ecology
Ecologia

Population dynamics
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Length-length rel.
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Life cycle
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Dinamica popolazioni larvali

Distribution
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Anatomy
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00447 (0.00177 - 0.01127), b=3.00 (2.78 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.0 ±0.5 se; based on size and trophs of closest relatives

Resilienza (Ref. 120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Hippocampus waleananus Gomon & Kuiter, 2009