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Description

  Common names: suckerfish (English), rémora (Espanol)
 
Phtheirichthys lineatus (Menzies, 1791)

Slender suckerfish



Very elongate (depth < 10% of SL);  sucking disc on head small, 9-11 plates, reaches ~ center of pectoral fin; gill rakers 1-3 above, 14-17 below; pectoral pointed, 17-21 rays; base of dorsal and anal fins very long, bases 2-3x head length; dorsal 32-28 rays; anal 31-38 rays;  tail with W shaped margin (central rays filamentous in juvenile).

Upper half blue-black, abruptly white lower half;  3 stripes along flank, blue above, black, silver below; tail black with white upper and lower rear margins.



Size: 76 cm.

Habitat: usually on large fishes or sharks, and turtle.

Depth: 0-100 m?

A circumtropical species, found throughout our region.
   

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Source: Shorefishes of the Tropical Eastern Pacific Online Information System

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