Morphology Data of Satanoperca rhynchitis
Identification keys
Main Ref. Kullander, S., 2012
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
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales

Distinguished from Satanoperca daemon, S. lilith, and S. acuticeps in the absence of well defined dark blotches on the side, and lower meristics (soft dorsal­fin rays 8­10, modally 9, vs 12-14; e1 scales 25-27, modally 26, vs 27-31; ceratobranchial gill-rakers 12-14, modally 14, vs 17-23). It is similar to remaining species of the genus, S. jurupari, S. leucosticta, S. mapiritensis, and S. pappaterra in meristics, proportional measurements, dentition, and general colour pattern, but can be diagnosed from all by fewer scales in the e1 row, 25-26, rarely 27, vs 27-28. Differs also from S. pappaterra in the Guaporé and Paraguay river basins in the absence of prominent black blotches along the base of the dorsal fin, and absence of a

well­defined black band along the middle of the side; and from S. leucosticta (Guyana and Suriname), and S. mapiritensis (Orinoco river drainage) by the absence of white spots on the snout and sides of the head. Its most similar species may be S. jurupari in the central Amazon basin from which it differs in modal dorsal­fin count XV.9, vs XV.10, e1 scale count 26 vs 27, gill-raker count 13-14 (rarely 15) vs 16-17 (rarely 14, 15, 18), gill blade narrower than ceratobranchial (vs wider), and generally longer snout (14.3-19.4% of SL, vs 11.3-15.9%) (Ref. 90072).

Ease of Identification

Meristic characteristics of Satanoperca rhynchitis

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 16 - 16
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total 27 - 28


Dorsal fin(s)

Attributes no striking attributes
Fins number
Finlets No. Dorsal   
Spines total 14 - 16
Soft-rays total 9 - 10
Adipose fin absent

Caudal fin

Attributes more or less truncate

Anal fin(s)

Fins number
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  more or less normal
Pelvics Attributes  more or less normal
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered 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