Teleostei (teleosts) >
Ovalentaria/misc (Various families in series Ovalentaria) >
Pseudochromidae (Dottybacks) > Pseudochrominae
Etymology: Pseudochromis: Greek, pseudes = false + Greek, chromis = a fish, perhaps a perch (Ref. 45335); yamasakii: Named for Kimihiro Yamasaki, who collected the holotype and provided photographs of the new species.
Eponymy: Kimihiro Yamasaki is a professional Japanese diver and ‘excellent underwater photographer’, who collected the type and provided photographs. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 18 - 45 m (Ref. 118103). Subtropical
Northwest Pacific: Japan.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.1 cm SL male/unsexed; (Ref. 118103)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 3; Dorsal soft rays (total): 25; Anal spines: 3; Anal soft rays: 15; Vertebrae: 26. This species is distinguished from its congeners by the following characters: D III,25, all segmented rays are branched; A III,15 where anal-fin spines are moderately stout and pungent, the second spine stouter than third; scales in lateral series 37-38; circumpeduncular scales 16; predorsal scales 15, extending anteriorly to anterior AIO pores; caudal fin is rounded (Ref. 118103).
Cross section: compressed.
Water temperatures of two photograph sites were 18°C and 21°C , suggesting that this species is tolerant of relatively low temperatures (Ref. 118103).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Gill, A.C. and H. Senou, 2016. Pseudochromis yamasakii, a new species of dottyback fish from Japan (Teleostei: Pseudochromidae: Pseudochrominae). Zootaxa 4173(3):296-300. (Ref. 118103)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
Tools
Special reports
Download XML
Internet sources