Morphology Data of Gagata youssoufi
Identification keys
Main Ref. Roberts, T.R. and C.J. Ferraris Jr., 1998
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral elongated
Cross section compressed
Dorsal head profile clearly convex
Type of eyes more or less normal
Type of mouth/snout more or less normal
Position of mouth

Body with 5 saddles. Snout broadly rounded in lateral profile, without notch. Upper jaw toothless; limited to small symphyseal patch on lower jaw. Gill rakers few in number and nearly indiscernible, except in skeleton preparations. Fourth gill arch with single row of teeth on lower limb. Anal fin with 4-5 simple rays, 11-13 branched rays (Ref. 40780).

Ease of Identification

Meristic characteristics of Gagata youssoufi

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales
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 3 - 4
on upper limb 1 - 1
total 4 - 5
preanal 14 - 15
total 37 - 38


Dorsal fin(s)

Fins number 1
Finlets No. Dorsal   
Spines total 1 - 1
Soft-rays total 6 - 6
Adipose fin present

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  more or less normal
Spines     1
Soft-rays   7 - 9
Pelvics Attributes  more or less normal
Position    abdominal  behind origin of D1
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Capuli, Estelita Emily
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cfm script by eagbayani, 17.10.00, php script by rolavides, 13/03/08 ,  last modified by sortiz, 06.27.17