Ageneiosus
inermis (Linnaeus,
1766) |
| |
Image contributors
to this species: |
|
ScotCat
Sources: |
|
Other Sources: |
 
|
|
Relevant Information: |
Anal soft rays: 34 - 40; Vertebrae:
46 - 51. Body naked and elongated. Head is pointed and depressed
at the top. Mouth is big and wide. The lateral eyes are situated
along the level of the mouth, ensuring a vision above and below.
Exhibits sexual dimorphism, like A. dentatus. The first
ray of the dorsal fin is very long and has pointed spines. Prefers
rivers in overgrown backwaters where the current is not too strong.
Feeds on fish and crustaceans. Its flesh is esteemed for its very
fine flavor. Is reported to be nocturnal. Frequently captured
with nets, the males are difficult to release from the nets because
of its strong dorsal spine bordered with denticles. During reproduction,
the mandibular barbels and dorsal spine of the male change, and
a copulatory organ appears at the anterior level of the anal fin.
Fertilization is internal, the female being capable of keeping
the spermatozoids inserted in the epithelium of her genital tract.
|
Common Name:
|
None |
Synonyms: |
Silurus inermis, Ageneiosus armatus,
Ageniosus brevifilis, Ageneiosus brevifilis, Hypothalmus dawalla,
Ageneiosus dawalla, Davalla schomburgkii, Ageneiosus axillaris,
Ageneiosus sebae, Ageneiosus therezinae, Ageneiosus therezine,
Ageneiosus ogilviei, Ageneiosus gabardinii |
Family: |
Auchenipteridae |
Distribution: |
South America: Widely
distributed in South America, east of the Andes. Type
locality: Surínam. |
Size: |
50.0cm. (20ins) |
Temp: |
22-24°c (71-75°f.) |
p.H. |
6.5-7.5 |
Reference: |
Froese, R. and D. Pauly.
Editors. 2009.FishBase. World Wide Web electronic publication.
www.fishbase.org, version (11/2011).
Boujard, T., M. Pascal, F.J. Meunier and P.-Y. Le Bail
1997 Poissons de Guyane. Guide écologique de l'Approuague
et de la réserve des Nouragues. Institut National de la
Recherche Agronomique, Paris, 219 p.
Le Bail, P.-Y., P. Keith and P. Planquette 2000
Atlas des poissons d'eau douce de Guyane (tome 2, fascicule II).
Publications scientifiques du Muséum national d'Histoire
naturelle, Paris:307 p.
Ferraris, C.J. Jr., 2007. Checklist of catfishes,
recent and fossil (Osteichthyes: Siluriformes), and catalogue
of siluriform primary types. Zootaxa 1418:1-628. |
|
|
|
