Hippocampus planifrons, Flatface seahorse

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Hippocampus planifrons Peters, 1877

Flatface seahorse
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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Actinopteri (ray-finned fishes) > Syngnathiformes (Pipefishes and seahorses) > Syngnathidae (Pipefishes and seahorses) > Syngnathinae
Etymology: Hippocampus: Greek, ippos = horse + Greek,kampe = curvature (Ref. 45335);  planifrons: Name from Latin bi meaning two, and ocellus meaning eye, in reference to the double eye-like spot on its back..

Issue
This species is a synonym of Hippocampus planifrons Peters, 11877 according to Lourie et al., 2016 (Ref. 115213). This species record will be removed.

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

Marine; demersal; non-migratory; depth range 0 - 20 m (Ref. 42735). Subtropical; 18°S - 26°S (Ref. 75154)

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

Eastern Indian Ocean: Western Australia. (Shark Bay and Exmouth Gulf).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 10.8 cm OT male/unsexed; (Ref. 42735)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 22-23; Anal spines: 0; Anal soft rays: 4 - 5. Anal fin rays divided at base; tail rings 36-38; subdorsal spines 4/0,0,1,1 or 5/0,0,1,1,1; nose ridge slightly raised, without a spine; spine above eyes moderately large, angled back and laterally outward; lateral head spine moderately large and recurved; coronet slightly raised, apex with 5 blunt diverging spines; upper shoulder-ring spine of small to moderate size, situated beside gill openings; central shoulder-ring spine of moderate size and directed laterally outward; superior trunk and tail ridges with broad thorn-like blunt spines, enlarged on some rings, at regular intervals; superior tail ridge with tubercle-like spines of moderate size, angled backward; trunk ridges followed by connecting tail ridges with spines and tubercles becoming gradually smaller posteriorly; lateral line with distinct pores, on trunk rings just above lateral ridge, continuing onto tail to 18th-23rd tail ring, each pore between raised papillae (Ref. 42735).

Biology     Glossary (e.g. epibenthic)

Adults inhabit shallow algae or weedy reef areas from the intertidal to about 20 m depth (Ref. 42735). Maximum length is based on a straight-line length measurement from upper surface (ignoring spines) of first trunk ring, to tip of tail (Ref. 42735). Ovoviviparous (Ref. 205). The male carries the eggs in a brood pouch which is found under the tail (Ref. 205).

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

Lourie, S. A., R.A. Pollom and S.J. Foster, 2016. A global revision of the seahorses Hippocampus Rafinesque 1810 (Actinopterygii: Syngnathiformes): taxonomy and biogeography with recommendations for further research. Zootaxa 4146(1):1-66. (Ref. 115213)

IUCN Red List Status (Ref. 125652)

  Least Concern (LC) ; Date assessed: 05 October 2016

CITES


CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 18 - 23.8, mean 19.2 °C (based on 107 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00174 - 0.01147), b=3.00 (2.78 - 3.22), in cm total length, based on LWR estimates for this Subfamily-BS (Ref. 93245).
Trophic level (Ref. 69278):  3.4   ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref. 120179):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100) .
Climate Vulnerability (Ref. 125649):   (0 of 100) .