Morphology Data of Neoclinus monogrammus
Identification keys
Main Ref. Murase, A., M. Aizawa and T. Sunobe, 2010
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 elongated
Cross section compressed
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales

This species is distinguished from all other congeners by the following set of characters: continuous lateral-line canal with single row of pores; orbit with 2 cirri; no true ocellus on anterior part of dorsal fin; low dorsal fin, not elevated anteriorly in either sex; absence of narrow membrane along anterior edge of 1st dorsal-fin spine. Neoclinus monogrammus differs from Neoclinus nudiceps in having the following characters: lateral-line canal 9-15 pores and reaching to below 6th to 9th dorsal-fin spine (vs. 3-5 pores, reaching to below 3rd to 4th dorsal-fin spine); counts of supraorbital cirri tips, the anterior and posterior cirri with 10-28 and 3-14 tips, respectively (vs. 2-6 and 1-2 tips, respectively); male color pattern on head with scattered reddish spots (vs. no conspicuous spots); body depth in proportion to standard length 11.3-13.4% (vs. 13.0-15.4%); head depth in proportion to head length 51.2-58.0% (vs. 56.6-60.6%) (Ref. 85569).

Ease of Identification

Meristic characteristics of Neoclinus monogrammus

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
preanal 15 - 15
total 45 - 46


Dorsal fin(s)

Fins number 1
Finlets No. Dorsal   
Spines total 20 - 22
Soft-rays total 18 - 19
Adipose fin

Caudal fin


Anal fin(s)

Fins number 1
Spines total 2 - 2
Soft-rays total 25 - 27

Paired fins

Pectoral Attributes  
Spines     0
Soft-rays   13 - 13
Pelvics Attributes  
Spines     1
Soft-rays   3 - 3
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Capuli, Estelita Emily
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