Teleostei (teleosts) >
Perciformes/Cottoidei (Sculpins) >
Liparidae (Snailfishes)
Etymology: Allocareproctus: Greek, allos = other + Greek, kara, kare = face + Greek, proktos = anus (Ref. 45335); unangas: Named for the people of the Aleutian Islands, 'unangas' autonym of he Aleuts of Atka I., a major island near the center of the species distribution; noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathydemersal; depth range 210 - 465 m (Ref. 57077). Deep-water
North Pacific: Aleutian Is.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 13.0 cm SL (female)
Short description
Identification keys | Morphology | Morphometrics
Diagnosis: Teeth are strongly trilobed; nasal papilla absent; papillae associated with few pores, invariably present only on maxillary pore 6 and suprabranchial pores 1-2 ; peritoneum dark; orobuccal valve with 1 finger-like projection; orobuccal cavity pale; gill rakers 8-12, short and blunt; interorbital papilla present; pyloric caeca on left side, short; body color light red; iris golden (Ref. 57077).
Smallest female with yolked eggs measured 9.1 cm SL; smallest male with enlarged, swollen testes 7.67 cm SL. Eggs were collected from the octocoral Primnoa sp. from Seguam Pass, with eggs of another liparid (Ref. 57077).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Orr, J.W. and M.S. Busby, 2006. Revision of the snailfish genus Allocareproctus Pitruk & Fedorov (Teleostei: Liparidae), with descriptions of four new species from the Aleutian Islands. Zootaxa 1173:1-37. (Ref. 57077)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
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Estimates based on models
Preferred temperature (Ref.
123201): 0.7 - 4.6, mean 1.8 °C (based on 13 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.5 ±0.6 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).
