SOLEIDAE
soles

  Microchirus (Zevaia) hexophthalmus
(Bennett, 1831)

Relevant synonyms
Dicologlossa hexophthalma
Dicologoglossa hexophthalma

Misidentification
None

Meristic formula
D, 61-80; A, 52-64; P, 5-8/4-8; LL, 85-92

 photo : Jean-Pierre Quignard    

SHORT DESCRIPTION
Body oval. Caudal fin separated from dorsal and anal. Both eyes on right side, upper eye equal or less than its own horizontal diameter from dorsal profile and larger than interorbital length. Anterior nostril on blind side not enlarged. Anterior nostril on eyed side not reaching front of the lower eye.

color : brownish with three large dark cross-bands, each ending with one ocellus along the dorsal and anal fins. On the anterior part of the body, two narrow bands and one on the head without ocellus.

size : common 10-18 cm (max. 20 cm).

DISTINGUISHING CHARACTERISTICS
Six ocelli on the body, three along the base of the dorsal fin and three along the base of the anal fin, distinguishing this species from all other Mediterranean soleidae.

BIOLOGY / ECOLOGY
No data.

habitat : benthic. Sandy or muddy substrate in shallow waters (150 m depth in the Atlantic ocean).


1st MEDITERRANEAN RECORD
Catalan Sea and Gulf of Lions, 1984.


DISTRIBUTION
Worldwide : Eastern Atlantic from Portugal to Angola. Mediterranean : recorded first in Catalan Sea and Gulf of Lions : three specimens captured by trawlers, 50-100 m depth (Matallanas, 1984c). Successively recorded from the Catalan Sea to Toulon, Provence, France (Quignard and Tomasini, 2000). Gulf of Taranto (Southern Italy).

ESTABLISHMENT SUCCESS
Very rare.

speculated reasons for success :
-


MODE OF INTRODUCTION
Via Gibraltar.


IMPORTANCE TO HUMANS
No commercial value.


KEY REFERENCES

  • Matallanas J., 1984b. A new species for the Mediterranean and Spanish ichthyofauna: Dicologlossa hexophtalma (Bennett, 1831) (Pisces, Soleidae) from Catalan waters. Cybium, 8: 95-96.
  • Quignard J.P. and Tomasini J.A., 2000. Mediterranean Fish Biodiversity. Biologia Marina Mediterranea, 7(3): 1-66.

FEEDBACK / COMMENTS TO AUTHORS



Last update of the species sheet:
January 2009

©ciesm 2002