Manonichthys alleni Gill, 2004
Sabah dottyback
photo by Allen, G.R.

Family:  Pseudochromidae (Dottybacks), subfamily: Pseudochrominae
Max. size:  5.06 cm SL (male/unsexed)
Environment:  reef-associated; marine; depth range 2 - 40 m
Distribution:  Western Pacific: Indonesia, Malaysia and the Philippines.
Diagnosis:  Dorsal spines (total): 3-3; Dorsal soft rays (total): 28-29; Anal spines: 3-3; Anal soft rays: 14-15; Vertebrae: 26-26. This species is distinct in having the following characters: hyaline pectoral fins, some ctenoid scales on cheek and operculum; rounded to truncate caudal fin; 17-22 predorsal scales, extending anteriorly to point ranging from anterior AIO pores to posterior nasal pores; dark (more or less) vertical bars extending from above and below eye absent (Ref. 81967). Description: Characterized by having anterior lateral line scales 24-29; depth of body 30.2-32.7 % of SL (Ref. 90102).
Biology:  Solitary and cryptic. Inhabits caves and under ledges of coastal fringing reefs (Ref 90102). This species has been observed to inhabit the tubular sponge Callyspongia aerizusa (Ref. 93553).
IUCN Red List Status: Least Concern (LC); Date assessed: 22 July 2021 Ref. (130435)
Threat to humans:  harmless


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