Morphology Data of Micrognathus micronotopterus
Identification keys
Main Ref. Breder, C.M. and D.E. Rosen, 1966
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs other
Different appearance always different morphology between mature adults
Different colors
Remarks Males with brood pouch; females with ovipositor (Ref. 205).

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral eel-like
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout tube-like
Position of mouth terminal

Description: Characterized by tan to dark brown color with 10-12 narrow pale bars crossing back, sometimes with dark bars crossing lower part of side and ventral surface of trunk; 1-6 dark blotches between lateral and superior trunk ridges in lighter fish; 10 caudal rays; rings 15 + 28 - 31; discontinuous superior trunk and tail ridges; inferior trunk ridge ends at anal ring; continuous lateral trunk ridge with inferior tail ridge; length of snout 2.3-3.0 in head length; depth of snout 2.1-3.1 in snout length; head length 7.2-8.9 in SL (Ref. 90102).

Ease of Identification

Meristic characteristics of Micrognathus micronotopterus

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
Finlets No. Dorsal   
Spines total
Soft-rays total 17 - 19
Adipose fin

Caudal fin


Anal fin(s)

Fins number
Spines total
Soft-rays total 2 - 4

Paired fins

Pectoral Attributes  
Soft-rays   10 - 13
Pelvics Attributes  suppressed/absent
Position    absent
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Luna, Susan M.
Modified by Valdestamon, Roxanne Rei
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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