Morphology Data of Sternopygus obtusirostris
Identification keys
Main Ref. Crampton, W.G.R., K.G. Hulen and J.S. Albert, 2004
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
Cross section
Dorsal head profile clearly convex
Type of eyes
Type of mouth/snout
Position of mouth sub-terminal/inferior
Type of scales cycloid scales

Body and head of living specimens uniformly black or very dark purple-brown with no humeral spot or patch; juveniles undergo striking pigmentation change from uniformly black by day to very pale with two distinct vertical saddle-like markings at night; dorsal margin of head well rounded (very convex) in adults (Ref. 52797).

Description: Caudal fin absent.

Ease of Identification

Meristic characteristics of Sternopygus obtusirostris

Lateral Lines Interrupted: No
Scales on lateral line 190 - 280
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 15 - 21
Scale rows below lateral line 7 - 13
Scales around caudal peduncle
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
preanal 22 - 26


Dorsal fin(s)

Attributes greatly reduced or absent
Fins number
Finlets No. Dorsal   
Spines total 0 - 0
Soft-rays total 0 - 0
Adipose fin

Caudal fin

Attributes other (see remark)

Anal fin(s)

Fins number
Spines total
Soft-rays total 195 - 312

Paired fins

Pectoral Attributes  
Soft-rays   15 - 17
Pelvics Attributes  suppressed/absent
Position    absent
Spines     0
Soft-rays   0 - 0
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Torres, Armi G.
Modified by Torres, Armi G.
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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