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Tatia
dunni (Fowler, 1945) |
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| Image
contributors to this species: |
| Yann
Fulliquet (6) |
| ScotCat
Sources: |
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| Other
Sources: |
 
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| Relevant
Information: |
Dorsal spines (total):
1; Dorsal soft rays (total): 4 - 5; Anal soft rays: 9 - 10; Vertebrae:
35. Can be diagnosed by the unique combination of characters: nasal
ossified with narrow medial flanges partially sutured to lateral
margin of mesethmoid; anal fin rays iii, 6-7; modified anal fin
with short tip in mature males; first unbranched anal-fin ray with
segments fused, last branched ray normally developed, not reduced;
ribs 10; and vertebrae 35. Differs further by the following coloration
details: contour of mouth dark, same color as head; posterior border
of nuchal shield usually dark; pectoral-fin spine usually dark brown;
body with irregular blotches or stripes; presence of faint stripes
or blotches in large specimens ; and caudal fin dark with whitish
blotches. Some T. dunni, from the Peruvian Amazon, have
a dark brown body and mottled anal fin (INHS 43890). Large specimens
from the Purus river, in central Amazonia, usually have a completely
dark body (INPA 17182) or a lightly spotted coloration (INPA 17184).
Distinguished from Tatia
intermedia by having preanal length 70.0-75.0%
SL, vs. 65.0-69.4% SL and interorbital distance 54.1-59.4% HL, vs.
60.1-63.6 HL (Ref. 79512). Description: A iii,6-7; V i5. Post-Weberian
vertebrae. Aquarium Care: As with per this genera,
give them small pipes, and they also seem to like to hide in the
crevices of bogwood as well. They appear to be happier if they can
jam themselves in with the use of their pectoral fins. Community
tanks are fine for this species although you may find that they
will predate on fry from other species, but apart from that they
come well recommended but don't expect to see them too often. Diet:
In its native habitat they feed on small invertebrates and crustaceans
and in the aquarium they will eat anything given such as frozen
bloodworm inserted in to their hideaway, catfish tablets, white
worm (sparingly) and prawns and shrimp. They do like their food
and you can see them shooting out of their hideouts and swimming
in a frenzied manner to try and take all for themselves, especially
when you feed them their favourite food, frozen bloodworm. |
| Common
Name: |
None |
| Synonyms: |
Centromochlus dunni |
| Family: |
Auchenipteridaeblycipitidae |
| Distribution: |
South
America: Upper Amazon in Ecuador and Colombia; central
Amazon in Brazil; Caquetá River drainage in Colombia.
Type locality: Morelia, Río Caquetá drainage,
Colombia. |
| Size:
|
12cm
(4¾ins) |
| Temp: |
22-26°c
(71 -79°f.) |
| p.H. |
6.5 -7.5. |
| Reference: |
Sarmento-Soares,
Luisa Maria; Martins-Pinheiro, Ronaldo Fernando A systematic
revision of Tatia (Siluriformes: Auchenipteridae: Centromochlinae)
Neotropical Ichthyology, 6(3):495- 542, 2008.
Froese, R. and D. Pauly. Editors. 2009.FishBase.
World Wide Web electronic publication. www.fishbase.org, version
(08/2010).
ScotCat Factsheet no. 48. June 2000
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