Morphology Data of Garra regressus
Identification keys
Abnormalities
Main Ref. Stiassny, M.L.J. and A. Getahun, 2007
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 sucker-like
Position of mouth sub-terminal/inferior
Type of scales
Diagnosis

Diagnosis: This species is unique among African Garra in possession of a small, acutely pointed head, narrow mouth, regressed rostral cap, and a fully exposed upper jaw (Ref. 58532).

Description: Garra regressus is relatively slender and elongate, greatest body depth located at level of dorsal-fin origin; head relatively short, being 19.7-21.0% of standard length; snout acutely pointed and often studded with small tubercles, mouth narrow; eye positioned a little posterior on head (Ref. 58532). Dorsal head profile rising steeply over snout, dorsum of head more-or-less flatened, dorsal body profile smoothly convex to dorsal-fin origin (Ref. 58532). Disc weakly developed and inconspicuous, without free posterior margin; rostral cap thin and regressed leaving upper jaw exposed (Ref. 58532). Two pairs of small barbels, maxillary pair usually longest (Ref. 58532). Number of pored scales along lateral line 39; either 8 or 9 predorsal scales anterior to dorsal fin; either 3-4 scales from lateral line to origin of pelvic fin; either 4-5 scales from lateral line to origin of dorsal fin; chest asquamate, belly with a few deeply embedded scales, and postpelvic region fully scaled (Ref. 58532). Dorsal fin with iii,7 rays, inserted well anterior to pelvic fin, with short acuminate tip, first and second branched rays longest; anal fin with iii,5 rays, with short subacuminate tip; pectoral fin with iv,11 rays, its length 17.5-21.0% of standard length (Ref. 58532). Predorsal length 44.0-46.3% of standard length (Ref. 58532). Vent located relatively close to anal fin (Ref. 58532).

Colouration: Body dark brown dorsally, somewhat lighter brown below lateral line but not markedly so; in largest specimen traces of a dark midlateral band evident (Ref. 58532). Head, snout, cheek and opercle dark brown; lips, lower cheek, gular region and branchiostegal membranes pale yellow brown (Ref. 58532). Dorsal and anal fins dark brown distally, paler proximally, with pale, creamy subacuminate tips; either 4 or 5 discrete black spots between rays in basal membrane of dorsal fin; caudal fin uniformly dark brown; pelvic and pectoral fins light brown with pale leading edges (Ref. 58532).

Ease of Identification

Meristic characteristics of Garra regressus

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales 39 - 39
Scales in lateral series
Scale rows above lateral line 4 - 5
Scale rows below lateral line 3 - 4
Scales around caudal peduncle
Barbels 4
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
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 - 10
Adipose fin absent

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number 1
Spines total 0 - 0
Soft-rays total 8 - 8

Paired fins

Pectoral Attributes  more or less normal
Spines     0
Soft-rays   15 - 15
Pelvics Attributes  more or less normal
Position    abdominal  behind origin of D1
Spines     0
Soft-rays   8 - 8
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