Morphology Data of Arabibarbus grypus
Identification keys
Abnormalities
Main Ref. Borkenhagen, K., 2014
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral elongated
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth sub-terminal/inferior
Type of scales
Diagnosis

Diagnosis: Arabibarbus grypus has 33-44 scales in the lateral line (Ref. 96964). The round head is shorter, 19.9-25.4% of standard length, and lower, 12.6-16.0% of standard length, than in its congeners (Ref. 96964). The body is cylindrical; the dorsal fin is short, 17.8-24.2% of standard length, and only weakly ossified; the pectoral fins, 16.0-19.3% of standard length, and pelvic fins, 14.3-17.5% of standard length, are shorter than in Arabibarbus hadhrami (Ref. 96964).

Description: The body is slender and laterally flattened in small juveniles; it is strong and cylindrical in larger specimens; a nuchal hump is absent; the head is short and round with a convex dorsal profile and a straight to slightly convex ventral profile; the head length is greater than the body depth (Ref. 96964). The mouth is sub-terminal with two pairs of barbels, which are about as long as the eye diameter; a median lobe is present on the lower lip; it is small in some specimens but well developed in others; the lips are inconspicuous in most specimens, but can be thick and fleshy in some; the eyes are lateral in the anterior half of the head and slightly protuberant (Ref. 96964).The dorsal fin is short and has 3-4 unbranched and 7-9 branched rays; the last unbranched ray is about as long as the head, weakly ossified and the distal part is flexible; the anal fin has 3-4 unbranched and 4-6 branched rays (Ref. 96964). It has 33-44 scales in the lateral line, 4.5-5.5 scales above the lateral line, 3.5-5.5 scales below the lateral line and 11-12 scales around the caudal peduncle; the scales are shield-shaped and have numerous parallel radii (Ref. 96964). The pharyngeal teeth count is 2.3.5-5.3.2; the pharyngeal teeth are hooked at the tip (Ref. 96964). There are 13-15 gill rakers on the lower limb and 3-5 gill rakers on the upper limb of the first gill arch (Ref. 96964).

Colouration: Live specimens are light grey to bronze and white ventrally; the back is darker than the flanks; the caudal fin is slightly orange in many specimens (Ref. 96964). Fixed specimens are yellow to brown, the dorsal area is darker than the flanks and the belly (Ref. 96964).

Ease of Identification

Meristic characteristics of Arabibarbus grypus

Lateral Lines Interrupted: No
Scales on lateral line 33 - 44
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 4.5 - 5.5
Scale rows below lateral line 3.5 - 5.5
Scales around caudal peduncle 11 - 12
Barbels 4
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 13 - 15
on upper limb 3 - 5
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total 0 - 0
Soft-rays total 10 - 13
Adipose fin absent

Caudal fin

Attributes forked

Anal fin(s)

Fins number 1
Spines total 0 - 0
Soft-rays total 7 - 10

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   
Pelvics Attributes  more or less normal
Position    abdominal
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Torres, Armi G.
Modified by Boden, Gert
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