Teleostei (teleosts) >
Perciformes/Cottoidei (Sculpins) >
Liparidae (Snailfishes)
Etymology: Allocareproctus: Greek, allos = other + Greek, kara, kare = face + Greek, proktos = anus (Ref. 45335); jordani: Specific name is a patronym honoring David Starr Jordan.
Eponymy: Dr David Starr Jordan (1851–1931) was a leading American ichthyologist, physician, educator, peace activist and believer in eugenics; moreover, he was founding President of Stanford University. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathydemersal; depth range 75 - 631 m (Ref. 57077), usually 300 - 500 m (Ref. 56456). Deep-water
Northwest Pacific: off Honshu, Japan at Sagami Bay, Kuril Islands, and eastern Okhotsk Sea.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 34.0 cm TL male/unsexed; (Ref. 56456); common length : 20.0 cm TL male/unsexed; (Ref. 56456); max. published weight: 730.00 g (Ref. 56456); max. reported age: 8 years (Ref. 56456)
Short description
Identification keys | Morphology | Morphometrics
Diagnosis: Simple teeth or with weak shoulders; nasal pore 1 with pigmented papilla; black peritoneum; single, finger-like projection on the orobuccal valve, its cavity pale; gill rakers 8 - 12, short and blunt; interorbital papilla may be present or absent; pyloric caeca on the right side; body is red; iris silver gray (Ref. 57077).
Body shape (shape guide): fusiform / normal.
Smallest female with yolked eggs measured 10.5. cm SL; smallest male with enlarged, swollen testes 7.45 cm SL (Ref. 57077).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Chernova, N.V., D.L. Stein and A.P. Andriashev, 2004. Family Liparidae Scopoli 1777 snailfishes. Calif. Acad. Sci. Annotated Checklists of Fishes (31):72. (Ref. 51661)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
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