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Hippocampus waleananus  Gomon & Kuiter, 2009

Walea pygmy seahorse
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Image of Hippocampus waleananus (Walea pygmy seahorse)
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drawing shows typical fish in this Family.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Syngnathiformes (Pipefishes and seahorses) > Syngnathidae (Pipefishes and seahorses) > Hippocampinae
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".

Environment / Climate / Range Ecology

Marine; benthopelagic, usually 5 - 20 m (Ref. 80667).   Tropical

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 1.8 cm SL male/unsexed; (Ref. 80667)

Short description Morphology | Morphometrics

Dorsal soft rays (total): 12. Extremely small (height 16.8mm, standard length 17.8mm); 12 trunks rings; tail elongate with 32 tail rings; 12 dorsal fin rays; 9 pectoral fin rays; anal fin absent (at least in one sex); eggs apparently brooded within trunk; medium length snout that lacks a bulbous tip; raised, angular coronet; fused gill openings on midline behind coronet supported by raised cleithral girdle; enlarged knob-like structures on head and trunk; paired laterally directed knob-like structures 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; pale pinkish to yellowish with red to brown blotches, radiating bands from eye; body protuberances white, appearing as white spots (Ref. 80667).

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Asia: Indonesia. Known only from the Togean Islands in Tomini Bay, central Sulawesi (Ref. 80667).

Biology     Glossary (e.g. epibenthic)

Occurs on Nepthea soft coral in 5-20 m (Ref 90102).

Main reference Upload your references | References | Coordinator | Collaborators

Gommon, M.F. and R.H. Kuiter, 2009. Two new pygmy seahorses (Teleostei: Syngnathidae: Hippocampus) from the Indo-West Pacific. Aqua Int. J. Ichthyol. 15(1):37-44.

IUCN Red List Status (Ref. 90363)

CITES (Ref. 94142)

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki |

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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on empirical models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00242 - 0.01892), b=2.93 (2.69 - 3.17), based on LWR estimates for this Subfamily-BS (Ref. 93245).
Trophic Level (Ref. 69278):  3.0   ±0.5 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low vulnerability (10 of 100) .