Morphology Data of Blenniella periophthalmus
Identification keys
Abnormalities
Main Ref. Springer, V.G. and J.T. Williams, 1994
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks Anal fin rays and vertebrae counts are higher in males (Ref. 9962).

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral elongated
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Diagnosis: Dorsal fin XIII, 18-21, notched between spinous and segmented-ray portions; anal fin II, 19-21; pectoral rays 13-15 (usually 14); pelvic fin I, 3; caudal fin, procurrent rays 7, segmented rays 13. Vertebrae 12 + 25-27. Orbital cirrus simple and slender, may have a short lateral branch, less often up to 4 branches; nasal cirri short and palmate, may rarely have more than 6 branches; nuchal cirri simple and slender, may have a single branch or a ragged edge. Mandibular pores 6. Dorsal lips margin entire, ventral margin crenulated. Occipital crest absent, but large males have a low thin ridge (less than 1.8 mm); no crest or ridge in females Three color-pattern types described for different localities (see Ref. 9962). Body of males with 6-7 dusky bands with 1 or a pair of dark margined, pale, oblong spots on each band; dark spots on spinous dorsal, dusky lines on rayed dorsal. Females with spots on caudal peduncle; body sometimes with fine dark specks (Ref. 4404). Body depth at anal-fin origin 4.6-5.3 in SL (Ref. 90102).

Ease of Identification

Meristic characteristics of Blenniella periophthalmus

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 12 - 12
total 25 - 27

Fins

Dorsal fin(s)

Attributes
Fins number 1notched No
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 12 - 14
Soft-rays total 18 - 21
Adipose fin absent

Caudal fin

Attributes more or less truncate

Anal fin(s)

Fins number 1
Spines total 2 - 2
Soft-rays total 19 - 21

Paired fins

Pectoral Attributes  
Spines     0
Soft-rays   13 - 15
Pelvics Attributes  
Position    
Spines     
Soft-rays   
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