Morphology Data of Hypsolebias janaubensis
Identification keys
Main Ref. Costa, W.J.E.M., P.F. Amorim and J.L. Mattos, 2012
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 short and / or deep
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales

Distinguished from all members of Hypsolebias flavicaudatus complex, except H. nitens and H. sertanejo, by the presence of elongated bluish white spots on the posterior portion of the dorsal-fin base in males (vs. spots not elongated); whereas the spots are only slightly elongated in H. nitens and H. sertanejo, the spots in H. janaubensis are uniquely elongate, approximately as long as spots of the anterior portion of the fin. Can be separated from H. nitens and H. sertanejo by having the dorsal-fin origin on a vertical between the base of the first and second anal-fin rays in females (vs. between second and seventh rays), besides the dorsal-fin origin usually being anterior to anal-fin origin in males (vs. always posterior); and body more slender in males (body depth 33.9-38.4% SL vs. 39.7-43.2% SL; caudal peduncle depth 12.6-14.3% SL vs. 14.8-17.3% SL. Also differs from H. nitens, H. flavicaudatus and H. gilbertobrasili by having grey bars of flank narrower than interspace (vs. wider); from H. nitens, H. gilbertobrasili and H. guanambi, in having dorsal and anal-fin filaments reaching the posterior margin of the caudal fin (vs. reaching the basal portion of the fin); from H. nitens and H. flavicaudatus, in having the largest spots of middle portion of the flank larger than pupil (vs. smaller); and from H. radiseriatus, H. pterophyllus and H. flagellatus by having fewer dorsal fin filaments (2-3 vs. 4-6).

Ease of Identification

Meristic characteristics of Hypsolebias janaubensis

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
on upper limb


Dorsal fin(s)

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

Caudal fin

Attributes more or less truncate

Anal fin(s)

Fins number
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  more or less normal
Pelvics Attributes  more or less normal
Position    abdominal  before origin of D1
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Torres, Armi G.
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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