Classificação / Names
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Actinopterygii (peixes com raios nas barbatanas) >
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.
Ambiente / Clima / Intervalo
Ecologia
; marinhas associadas(os) a recifes; não migratória; intervalo de profundidade 43 - 48 m (Ref. 82040). Tropical, preferred ?
Western Indian Ocean: Seychelles.
Tamanho / Peso / Idade
Maturity: Lm ? range ? - ? cm
Max length : 6.1 cm TL (female)
Descrição breve
Morfologia | Morfometria
Raios dorsais moles (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).
Collected from coarse calcareous sand and coral (82040).
Life cycle and mating behavior
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Male carries the eggs in a brood pouch (Ref. 205).
Randall, J.E. and S. Lourie, 2009. Hippocampus tyro, a new seahorse (Gasterosteiformes: Syngnathidae) from the Seychelles. Smithiana Bulletin 10:19-21. (Ref. 82040)
Categoria na Lista Vermelha da IUCN (Ref. 115185)
Ameaça para o homem
Harmless
Utilização humana
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