Actinopterygii (ray-finned fishes) > Syngnathiformes
(Pipefishes and seahorses) > Syngnathidae
(Pipefishes and seahorses) > Hippocampinae
Etymology: Hippocampus: Greek, ippos = horse + Greek,kampe = curvature (Ref. 45335); grandiceps: From the Latin for large and head, in reference to its head which is proportionally larger than most other Hippocampus species.
Environment / Climate / Range
Marine; demersal; amphidromous; depth range 10 - 10 m (Ref. 58018). Tropical
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 10.5 cm OT (female)
Morphology | Morphometrics
(total): 18. Pectoral fin rays usually 18; trunk rings 11; tail rings 32-33; head long, 94-103% of trunk length; head angled down to near trunk (Ref. 42735).
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Western Central Pacific: Gulf of Carpentaria, Australia. International trade is monitored through a licensing system (CITES II, since 5.15.04) and a minimum size of 10 cm applies.
Collected from shallow water (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).
Kuiter, R.H., 2001. Revision of the Australian seahorses of the genus Hippocampus (Syngnathiformes: Syngnathidae) with descriptions of nine new species. Rec. Aus. Mus. 53:293-340. (Ref. 42735)
IUCN Red List Status (Ref. 96402)
Threat to humans
CountriesFAO areasEcosystemsOccurrencesIntroductionsStocksEcologyDietFood itemsFood consumptionRation
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00427 (0.00163 - 0.01116), b=3.00 (2.78 - 3.22), based on LWR estimates for this Subfamily-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.4 ±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 (13 of 100) .