Morphology Data of Dagetichthys lusitanicus
Identification keys
Main Ref. Desoutter, M., 2003
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors

Descriptive characteristics of juvenile and adult

Striking features flatfish
Body shape lateral other (see Diagnosis
Cross section flattened
Dorsal head profile clearly convex
Type of eyes more or less normal
Type of mouth/snout more or less normal
Position of mouth sub-terminal/inferior
Type of scales

Diagnosis: body oval, elongate, flat and asymmetric (Ref. 57416), hind part tapering (Ref. 4710). Eyes located on right side of head, except in reversed individuals (Ref. 57416). Upper eye its own diameter or more from dorsal profile of head; anterior nostril on blind side not enlarged; anterior nostril on eyed side with backward-pointing tube not reaching front border of lower eye (Ref. 4710). Preopercle covered by skin and opercle entirely scaled; mouth arched and inferior; dorsal and anal fins lacking spinous rays and confluent with caudal fin, no distinct caudal peduncle; last dorsal and anal rays not shorter than preceding rays and broadly united to outer caudal rays; dorsal fin originating on anterior profile of head; pectoral fins present on both sides with 6-10 rays; straight part of lateral line visible, supratemporal part slightly arched above eyes; body covered with ctenoid scales (Ref. 57416).

Description: lower lip ornamented with cirri (Ref. 57416).

Colouration: eyed side greyish-brown, with irregular black spots tending to form longitudinal series; these spots are better developed along lateral line (Ref. 4710, 57416). Dorsal and anal fins of same colour as body; pectoral fin darker near tip; blind side whitish (Ref. 57416).

Ease of Identification

Meristic characteristics of Dagetichthys lusitanicus

Lateral Lines 1 Interrupted: No
Scales on lateral line
Pored lateral line scales 100 - 123
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb


Dorsal fin(s)

Attributes extending over most of the back length
Fins number 1
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 0 - 0
Soft-rays total 73 - 83
Adipose fin absent

Caudal fin

Attributes more or less truncate; confluent

Anal fin(s)

Fins number 1
Spines total 0 - 0
Soft-rays total 57 - 67

Paired fins

Pectoral Attributes  more or less normal
Spines     0
Soft-rays   6 - 10
Pelvics Attributes  
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Comments & Corrections
Back to Search
cfm script by eagbayani, 17.10.00, php script by rolavides, 13/03/08 ,  last modified by sortiz, 06.27.17