Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Ovalentaria/misc
() > Pseudochromidae
(Dottybacks) > Pseudochrominae
Etymology: Manonichthys: Name is a combination of Greek manon which is a kind of sponge, and ichthys for fish, referring to the sponge-dwelling behaviour of the species under this genus.; alleni: Named for Gerald Allen. More on author: Gill.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 2 - 40 m (Ref. 81967). Tropical
Western Pacific: Indonesia, Malaysia and the Philippines.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.1 cm SL male/unsexed; (Ref. 81967)
Morphology | Morphometrics
soft rays: 14 - 15;
Vertebrae: 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).
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).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Gill, A.C., 2004. Revision of the Indo-Pacific dottyback fish subfamily Pseudochrominae (Perciformes: Pseudochromidae). Smith. Monogr. (1):1-213. (Ref. 81967)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 28.1 - 29, mean 28.7 °C (based on 128 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.4 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (12 of 100) .