Pacific longnose chimaera (Harriotta raleighana) fish species and information / pictures of Pacific longnose chimaera - Harriotta raleighana

Pacific longnose chimaera (Harriotta raleighana) fish species information

Scientific Name
Harriotta raleighana

Common Name
Pacific longnose chimaera

Biology
Dorsal spines : 1; Anal spines: 0; Anal soft rays: 0. A longnose chimaera with a rather long, narrow, depressed snout, a small eye situated above or behind the mouth, a rather long first dorsal fin and spine, knobby tooth plates, and caudal fin lanceolate with no tubercles on upper edge but with a long terminal filament. Dark brown or blackish in color. No separate anal fin. Claspers are rod like, rather slender, unbranched, with tip somewhat swollen. Jugular and oral canals arising separately from orbital, with a short interspace; angular canal joining suborbital about 2/7 of distance from front level of eye toward tip of snout.

Classification

Classified By
Goode & Bean, 1895
Class
Chimaeras (Holocephali)
Order
Chimaeras (Chimaeriformes)
Family
Longnose chimaeras (Rhinochimaeridae)

Distribution

Region
Eastern Atlantic
Distribution
Eastern Atlantic: Iceland, Faeroe Islands, Rockall Trough along Ireland to northern France; Canary Islands and off Cap Blanc, Mauritania; Namibia and South Africa. Western Atlantic: Nova Scotia, Canada to Chesapeake Bay in USA; southern Brazil. North Pacific: off Japan and California, USA; also 100 km off southern Baja California. South Pacific: off New Zealand and Australia.
Range
65°N - 49°S

Environment

Climate
Deep-water
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
200 m
Depth To - meters
2600 m
Zone
bathydemersal
Environment
Marine; bathydemersal; depth range 200 - 2600 m
Trophic Level
3.55 s.e. 0.50 Based on food items.
Occurs in Marine / Salt water
True
Occurs in Brackish water
False
Occurs in Fresh Water
False
Occurs on Reefs
False
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
120 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.7539 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries: of no interest
Vulnerability
Moderate vulnerability (45 of 100)
Resilience
Low, minimum population doubling time 4.5 - 14 years (Assuming Fec
Threat To Humans
Harmless
IUCN Red List Status
Least Concern (LC)