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); rhomboides: Name 'rhomboides' from the Latin word 'rhombus', in allusion to the diamond-like body
shape of the new species.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathydemersal; depth range 570 - 825 m (Ref. 137847). Temperate
Northwest Pacific: Japan.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 16.6 cm SL male/unsexed; (Ref. 137847)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 56 - 57; Anal soft rays: 49 - 52; Vertebrae: 59 - 61. This species is distinguished from its congeners by the following set of characters: total vertebrae 59-61; D 56 or 57; A 49-52; P1 32-34; pyloric caeca 13-16; cephalic pore pattern 2-6-7-2, chin pores paired in separate pits; maximum body depth 22.4-30.5% SL; inner teeth on both jaws strongly trilobed; pelvic disk oval, slightly longer than width, length 4.3-7.7% SL [18.9-33.9% head length (HL)]; gill opening small, extending to just above pectoral fin; stomach black and peritoneum pale in preserved specimens (Ref. 137847).
Body shape (shape guide): elongated; Cross section: compressed.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Mori, T., K. Matsuzaki, Y. Kai and Tashiro. F., 2024. Careproctus rhomboides, a new snailfish (Cottoidei: Liparidae)
from the western North Pacific. Ichthyol. Res. 72:29-37. (Ref. 137847)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
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