Morphology Data of Cerogobius petrophilus
Identification keys
Abnormalities
Main Ref. Kovačić, M., S.V. Bogorodsky, E.M. Troyer and L. Tornabene, 2019
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
Cross section compressed
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This species is distinguished by the following characters: unpaired horn-like tentacle at the level of nostrils on the snout midline; snout has a steep profile from lateral view, very short about 0.4-0.5 of eye diameter; orbit is projecting forward and elevated, extending above dorsal profile of the head; posterior angle of the jaws extends behind vertical through posterior edge of eye; lower limb of first gill arch is joined to gill cover by a membrane; caudal peduncle is deep and short, 0.8-0.9 of body depth at anal-fin origin, with caudal-peduncle depth slightly to distinctly greater than its length; segmented caudal-fin rays 17; pelvic fins are completely separated, no frenum; head and body are completely scaleless; head no canals; preorbital rows r, s, s3 each reduced to a single papilla; without suborbital sensory papillae rows a and b; presence of four very short transverse suborbital rows of sensory papillae (1-4), row 1 oblique, reaching upper lip, row 2 distant from eye and close to row d, rows 3 and 4 are close to posteroventral edge of eye and distant from row d, row d is short; oculoscapular rows are reduced to rows x1, x2, z, as1, as2, with only x1 having more than 2 papillae; dorsal-fin pterygiophore insertion pattern 3-22110; vertebrae: 10 precaudal + 17 caudal; hypurals 1-2 and 3-4 are not fused, distinctly separate along entire length; two anal-fin pterygiophores inserted anterior to haemal arch (Ref. 126737).

Ease of Identification

Meristic characteristics of Cerogobius petrophilus

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 10 - 10
total 27 - 27

Fins

Dorsal fin(s)

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

Caudal fin

Attributes

Anal fin(s)

Fins number
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   
Pelvics Attributes  
Position    
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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