Morphology Summary - Gnathophis ajithi
Morphology Data of Gnathophis ajithi
Identification keys
Abnormalities
Main Ref. Kodeeswaran, P. and E.S. Karmovskaya, 2025
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  (shape guide) elongated
Cross section oval
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This moderate size species is distinguished from its congeners by the following set of characters: elevated pores above the adpressed pectoral fin; small eye, 15.7-17.7% HL; lateral-line pores before anus 27-33; total vertebrae 124 (122-126); vertebrae formula: 8-10/28-34/33-38/122-126; stomach grey to black (Ref. 138427).

Description: Colouration when alive: body dorsally olive-greenish, belly silvery-white; bright silvery band runs parallel to and below the lateral-line pores after anus, and which becomes pale brownish posteriorly; melanophores, pigment traces of leptocephalus, on ventral side of body from gill opening to tail tip, dense, tapering posteriorly; dorsal and anal fins are milky white with dark margin; caudal fin dark and tail tip white; pectoral fin translucent with greenish to dark patches at the base and dorsal margin; head slightly darker than body; snout tip lime green, then a little darker; back of the head brownish-dark, supratemporal commissure lighter; stomach grey to black and peritoneum slivery; dorsal and ventral of lateral-line pores are whitish; gill-opening white; eyes bright with dark pupil surrounded by golden iris (Ref. 138427).

Ease of Identification

Meristic characteristics of Gnathophis ajithi

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
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal
total 122 - 126

Fins

Dorsal fin(s)

Attributes
Fins number
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total
Adipose fin

Caudal fin  (shape guide)

Attributes

Anal fin(s)

Fins number
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   
Pelvics Attributes  
Position    
Spines     
Soft-rays   
(e.g. 9948)
(e.g. oophagy)
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