Morphology Data of Labeo lividus
Identification keys
Abnormalities
Main Ref. Roberts, T.R. and D.J. Stewart, 1976
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 fusiform / normal
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Diagnosis: 2 pairs of well-developed barbels; barbels dullcolored, same hue as skin of head where they arise; length of posterior barbel consistently slightly less than diameter of eye, and length of anterior barbel about 1/3-1/2 that of posterior barbel; keratinous tubercles on head small, granular, white spots which project little or not at all above surface of head; adults dull blue dorsally and laterally, whitish ventrally; 37-39 scales in a lateral series to end of hypural plate, 20-24 (usually 24) around caudal peduncle; dorsal fin with 10-11 (usually 11) branched rays, its margin falcate (Ref. 42510).

Description: Lips: rostral flap fimbriated; inner surface of upper lip with numerous transverse plicae formed by minute, confluent papillae; lower lip with numerous large, conical papillae which become larger and harder with growth (Ref. 42510). Eye: position of eye lateral or slightly superolateral, less superolateral than in barbatus (Ref. 42510). Squamation: 37-39 scales in lateral series to end of hypural fan, plus 2-4 more pored scales extending onto base of caudal fin; 6-8 (usually 7) scales between lateral line and pelvic fin insertion; dorsomedian scale row anterior to dorsal fin poorly developed, the scales small, irregularly positioned and often with scaleless gaps between them; first 1-2 dorsolateral scale rows anterior to dorsal fin also reduced in size; squamation of barbatus virtually identical, except that there are usually only 8-9 scales above lateral line, and usually 20-21 (rarely 24) scales around caudal peduncle (Ref. 42510). 20-26 scales around caudal peduncle (Ref. 26190).

Coloration: juvenile coloration: except for striking difference in barbels, coloration of juveniles is very similar to that in barbatus; entire sides of the body exhibit a reticulate pattern of light and dark areas, parallel or complementary to scales; pattern is very similar in barbatus, there may be a difference in that the indistinct darker vertical marks on the scales characteristic of adult barbatus are sometimes more evident in juveniles of barbatus; caudal peduncle bears a dark vertical blotch, surrounded by a poorly defined lighter area; 2-3 scale rows extending onto caudal fin also darkened; no indication of either red spots on scales or a dark midlateral stripe, characteristic features of juvenile coloration in some other species groups of Labeo (Ref. 42510).

Ease of Identification

Meristic characteristics of Labeo lividus

Lateral Lines 1 Interrupted: No
Scales on lateral line 37 - 39
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 8 - 11
Scale rows below lateral line
Scales around caudal peduncle 20 - 24
Barbels 4
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal
total 33 - 33

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   0
Ventral  0
Spines total
Soft-rays total 10 - 11
Adipose fin absent

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number 1
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   
Pelvics Attributes  more or less normal
Position    abdominal  behind origin of D1
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Musschoot, Tobias
Modified by Musschoot, Tobias
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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