Hippocampus tyro  Randall & Lourie, 2009

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Hippocampus tyro
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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);  tyro: Named for the Dutch R/V Tyro..   More on author: Randall.

Environment / Climate / Range Ecology

Marine; reef-associated; depth range 43 - 48 m (Ref. 82040).   Tropical

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 6.1 cm TL (female)

Short description Morphology | Morphometrics

Dorsal soft rays (total): 15. This species is distinguished by the following characters: D 15; pectoral rays 14-15; rings on trunk 14; tail 38; subdorsal 3; subdorsal spines 4, forming a square, the dorsal 2 enlarged; spines blunt and moderate in size in trunk and tail ridges; third and seventh superior trunk spines, and fourth, eighth, and eleventh superior tail spines enlarged, with a slender, leaf-like filament; slender body, the maximum trunk depth (at seventh trunk ring) 11.2 in TL; depth of tail at third tail ring 23 in TL; trunk length 3.2 in TL; head at right angle to trunk as photographed (80° in preserved specimen); head length 6.2 in TL; snout length 2.2 in HL; eye diameter 6.25 in HL; suborbital 1, supraorbital 2, and 2 nose spines; coronet oval and cuplike in dorsal view, with a rugose spine to each side, followed by a narrow median ridge; anterior edges of coronet converging to a low, arrow-like, median spine; shoulder ridge continuous middorsally, followed by crest-like ridge; gill opening a single middorsal slit in neck ridge between coronet and collar of shoulder ridge; color when preservative uniform greyish white; when fresh light brown with whitish blotches, grading to light orangish brown posteriorly on tail, and to whitish ventrally on head and trunk; trunk and tail ridge spines white; filaments on spines dark brown. This species differs from H. pusillus in having a much greater head depth, 38 (vs.34) tail rings, and 14 or 15 (vs. 12 or 13) pectoral rays (Ref. 82040).

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

Western Indian Ocean: Seychelles.

Biology     Glossary (e.g. epibenthic)

Collected from coarse calcareous sand and coral (82040).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

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

Main reference Upload your references | References | Coordinator | Collaborators

Randall, J.E. and S. Lourie, 2009. Hippocampus tyro, a new seahorse (Gasterosteiformes: Syngnathidae) from the Seychelles. Smithiana Bulletin 10:19-21. (Ref. 82040)

IUCN Red List Status (Ref. 96402)

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 models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00417 (0.00160 - 0.01085), b=3.00 (2.78 - 3.22), based on LWR estimates for this Subfamily-body shape (Ref. 93245).
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low vulnerability (10 of 100) .