Harriotta raleighana, Pacific longnose chimaera

Harriotta raleighana Goode & Bean, 1895

Pacific longnose chimaera
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Harriotta raleighana   AquaMaps   Data sources: GBIF OBIS
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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);  raleighana: In honor of Sir Walter Raleigh (ca. 1554‒1618), “philosopher and explorer, by whom the first English scientific expedition was sent to the New World” (Raleigh funded a 1585 expedition to Roanoke Island, North Carolina, with Thomas Harriott [honored in the (See ETYFish).
More on authors: Goode & Bean.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; bathydemersal; depth range 200 - 3100 m (Ref. 117245), usually 500 - 2000 m (Ref. 97389). Deep-water; 65°N - 49°S, 121°W - 179°E

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Cosmopolitan,

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 120 cm OT male/unsexed; (Ref. 26346); 102.5 cm TL (female); max. published weight: 1.6 kg (Ref. 122636)

Short description Morphology | Morphometrics

This species is distinguished from H. chaetirhampha by the following characters: H. raleighana with eye small, its length 7% BDL (vs. 7-9% in H. chaetirhampha); interorbital space broad, 11-16% BDL (vs. 6-9%); snout tip smooth (vs. armed with small knob-like projections; only prominent in male); first dorsal fin low, length of dorsal spine anterior margin 16% BDL (vs. 19-24%); pectoral and pelvic fins broadly rounded (vs. bluntly pointed); interdorsal space narrow, 4.5-8.4% BDL (vs. 24.8-26.8%); length of caudal dorsal margin (CDM) longer (vs. shorter) than caudal ventral margin, CDM 74-79% BDL (vs. 49-62%); length of caudal upper ray (CUR) longer (vs. shorter) than that of lower ray, CUR 10-11% BDL (vs. 4-5%); infraorbital canal strongly curved anterior to eye, forming S-shaped loop (vs. only gently curved); with distinct longer and thicker claspers, its outer length 25% BDL (vs. 16%) and its base width 3% BDL (vs. 1%); tip of the clasper excessively inflated so as to form a large, elongate and fleshy knob, covered with 16 (17 in right side) small, multifaceted, hemp-leaf shaped spines, most of which were serially arranged along its dorsomesial margin (vs. small bulb, with several simple spines sparsely distributed); a deep slit running longitudinally from dorsolateral base of rod to the ventromesial surface of the knob, running along the dorsal side of the clasper( vs. not prominent) (Ref. 123553).

Biology     Glossary (e.g. epibenthic)

Found on the continental slope and ocean floor (Ref. 26346). Appears to feed mainly on shellfish and crustaceans (Ref. 6871). Maximum length 120 cm without tail filament (Ref. 26346).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Oviparous, young hatch at about 10-13 cm (Ref. 26346).

Main reference Upload your references | References | Coordinator | Collaborators

Last, P.R. and J.D. Stevens, 1994. Sharks and rays of Australia. CSIRO, Australia. 513 p. (Ref. 6871)

IUCN Red List Status (Ref. 125652)

  Least Concern (LC) ; Date assessed: 19 February 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: of no interest
FAO - Publication: search | FishSource |

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AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 0.3 - 9, mean 5.2 °C (based on 654 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.7539   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00174 (0.00129 - 0.00235), b=3.14 (3.05 - 3.23), in cm total length, based on LWR estimates for this species (Ref. 93245).
Trophic level (Ref. 69278):  3.6   ±0.50 se; based on food items.
Resilience (Ref. 120179):  Low, minimum population doubling time 4.5 - 14 years (Assuming Fec <100).
Fishing Vulnerability (Ref. 59153):  High vulnerability (58 of 100).