Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Perciformes/Cottoidei (Sculpins) >
Liparidae (Snailfishes)
Etymology: Careproctus: Greek, kara = face + Greek, proktos = anus (Ref. 45335); io: Named after 'Io', a Greek mythological character who wandered the world without rest, due to the unsettled phylogenetic position of the new species; noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathydemersal; depth range 419 - 465 m (Ref. 131310). Subtropical
Northwest Pacific: Japan.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 5.1 cm TL male/unsexed; (Ref. 131310); 4.4 cm TL (female)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 36 - 37; Anal soft rays: 30; Vertebrae: 40 - 42. This species is distinguished by the following set of characters: vertebrae 40-42; D 36 or 37; A 30; pectoral-fin rays 28 or 29 rays, deeply notched, with lower lobe reaching to anal-fin origin; large pelvic disk 34.2-34.5% HL (10.3-10.9% SL); teeth are strongly trilobed on both jaws, with inner teeth weakly trilobed or shouldered; cephalic pore pattern 2-6-7-2, chin pores paired; gill slit is above pectoral-fin base. Colouration: body bright red, non-variegated in life (Ref. 131310).
The ovary of holotype pouch-like, translucent whitish, with yolked eggs (0.50 mm maximum diameter); testes of paratype (FAKU 150605) was enlarged, color creamy-white (Ref. 131310).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Kai, Y., E. Morikawa and R. Misawa, 2024. Careproctus io (Teleostei: Liparidae), a new snailfish from the western North Pacific, with comments on generic limits. Species Diversity 29:111-117. (Ref. 131310)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
Special reports
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic level (Ref.
69278): 3.1 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
