IUCN threat status:

Vulnerable (VU)

Comprehensive Description

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Description

  Common names: smoothhound (English), musola (Espanol)
 
Mustelus whitneyi Chirichigno, 1973


Humpback smoothhound


Elongate,  hunched body; snout long; mouth large, angular; teeth high, roughly triangular, pointed; eyes horizontal ovals, with ventral nictitating membranes; width between eyes = 4.5-5.6% of TL, 5 gill slits, last 2 over pectoral fin base; 2 large dorsal fins, second slightly smaller than first; first dorsal broadly triangular, its mid-base nearer pelvic base than pectoral base;  dorsal fins with rear fibrous edge; distance between dorsal fins = 16-21% of TL, first dorsal behind pectoral; anal fin smaller than and with origin under middle of second dorsal; tail strongly asymmetrical, lower lobe with concave rear edge in adults; skin denticles on flank pointed ovals, canal along entire center.


Grey above, paler below; fibrous rear edge of dorsal and tail fins dark.


Size: 87 cm.

Habitat: rocky bottoms around islands.


Depth: 15-210 m.

Temperate SE Pacific; Panama to Chile.
   

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© Shorefishes of the tropical eastern Pacific online information system. www.stri.org/sftep

Source: Shorefishes of the Tropical Eastern Pacific Online Information System

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