Family: |
Tetraodontidae (Puffers), subfamily: Tetraodontinae |
Max. size: |
3.49 cm SL (male/unsexed) |
Environment: |
demersal; freshwater |
Distribution: |
South America: Brazil. |
Diagnosis: |
This species is distinguished from its congeners (asellus, psittacus) by the following characters: basal pterygiophores 6-7 and anal-fin rays 9 (vs. 10-11 for both its congeners); basal pterygiophores and dorsal-fin rays 10 (vs. 11); an opercle with a posterior ventral border subdivided in a ventral and a posterior region, the herein called ‘‘inverted V’’ shape (vs. triangular opercle); differs from C. asellus by the absence of dermal flaps across the chin (vs. uniquely present in C. asellus); caudal peduncle with 8 vertebrae (Ref. 122317). |
Biology: |
|
IUCN Red List Status: |
Not Evaluated (N.E.) Ref. (130435)
|
Threat to humans: |
harmless |
Country info: |
|
Source and more info: www.fishbase.org. For personal, classroom, and other internal use only. Not for publication.