Hippocampus tristis Castelnau, 1872
Lazarus seahorse
photo by Watson, S.

Family:  Syngnathidae (Pipefishes and seahorses), subfamily: Syngnathinae
Max. size:  18 cm OT (male/unsexed)
Environment:  reef-associated; marine
Distribution:  Eastern Indian Ocean: South Australia.
Diagnosis:  Dorsal soft rays (total): 14-17; Anal soft rays: 4-4. This species is distinguished by the following characters: D 14-17; subdorsal rings 2+1-2; tail rings 33-34; nose profile straight with a small spine; head and body spines small and blunt, proportionally small in largest specimen; most trunk ridges are with low tubercles; upper shoulder-ring spine is just below gill opening; lower shoulder-ring spine thick, knoblike, single or double with less developed secondary spine anteriorly; neck ridge is short and distinctly raised above gill openings (Ref. 123057).
Biology: 
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless


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