Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Holocephali (chimaeras) >
Chimaeriformes (Chimaeras) >
Rhinochimaeridae (Longnose chimaeras)
Etymology: Harriotta: [an]a- (L.), belonging to: per Goode & Bean (1896), in honor of Thomas Harriott (ca. 1560‒1621), English astronomer, mathematician, ethnographer and translator, who published the first English work on American natural history (1588) (See ETYFish); avia: Name from Latin noun 'avia' for grandmother, in memory of June Thomas who proudly supported her granddaughter’s (BF) science career.
Eponymy: Thomas Harriott (ca: 1560–1621) was an English astronomer, mathematician, ethnographer and translator, who published first English work on American natural history (1588). [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathydemersal; depth range 260 - 1278 m (Ref. 132499), usually 400 - 1000 m (Ref. 132499). Tropical
Southwest Pacific: New Zealand-Australia region.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 33.4 cm TL male/unsexed; (Ref. 132499); 44.5 cm TL (female)
Short description
Identification keys | Morphology | Morphometrics
This species is distinguished from its congeners by the following set of characters: snout elongated, narrow and depressed up to 56% BDL; trunk long, slender; vomerine tooth plate beak-like; eye largelength 8-12% BDL and height 5-7% BDL; long dorsal spine reaching slightly beyond apex of the dorsal fin; pelvic claspers slender rod-likel; deciduous skin; uniform chocolate brown when skin intact (Ref. 132499).
Cross section: oval.
Widespread on the continental slope and over seamounts and ridges. In terms of length measurements of specimens examined: largest female 44.5 cm BDL (107.5 cm TL), male 33.4 cm BDL (95.7 cm TL); smallest mature male 30.0 cm BDL (79.1 cm TL), largest adolescent male 24.9 cm BDL (67.2 cm TL); smallest mature female 36.2 cm BDL (85.9 cm TL), largest adolescent female 36.6 cm BDL (95.1 cm TL). Maturity was estimated at 28.6 cm BDL for males and 37.2 cm BDL for females (Ref. 132499).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Finucci, B., D. Didier, D.A. Ebert, M.E. Green and J.M. Kemper, 2024. Harriotta avia sp. nov., a new rhinochimaerid (Chimaeriformes: Rhinochimaeridae) described from the Southwest Pacific. Environ Biol Fish (2024)107:841-865. (Ref. 132499)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6270 [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic level (Ref.
69278): 3.6 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (35 of 100).
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