Beibu Bay seahorse (Hippocampus casscsio) is a ray-finned fish of the family Syngnathidae. It inhabits marine (saltwater) waters in reef-associated environments. This species can reach a maximum total length of 13.3 cm. With a trophic level of 3.4, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Data Deficient on the IUCN Red List.
Dorsal soft rays (total): 16. This species is distinguished from other seahorse species by the following set set of characters: high number of tail rings (34-37); pectoral-fin rays 15; dorsal-fin rays 16, with dorsal fins covering 2 trunk rings and 2 tail rings; a rounded nuchal plate without a raised coronet; snout length approximately 30% in HL; an eye spine; 2 cheek spines; tail length approximately 60% in SL; body colour plain dark brown; males with fully enclosed brood pouch with a small opening for the incubation of eggs .: elongated; Cross section: angular.
Behavioural data for Beibu Bay seahorse is currently being reviewed.
Marine; reef-associated. Subtropical; 22°S - 18°S, 107°E - 111°E Northwest Pacific: China.
The following diseases are known to affect Beibu Bay seahorse.
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