Ancistrus
leoni Souza, Taphorn & Armbruster, 2019 |
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Relevant Information: |
Ancistrus leoni can be
separated from all other Ancistrus in the region by
having the odontodes located medially on the snout in a single,
narrow column (vs. a broad triangular, curved, or rectangular
area) and by having a colour pattern consisting of small white
spots and well-developed dorsal saddles (vs. many smaller white
or yellow spots packed more closely together or just on head,
large white spots, or entirely brown sides and saddles weakly
developed if present); and from all except A.
macrophthalmus by having the eyes almost completely
dorsally located on the head and the orbital rim the most elevated
portion of head (vs. eyes slightly dorsally placed in A.
lithurgicus and mostly lateral in all other species and
with the medial interorbital point more dorsal than the orbital
rim). The nuptial male A. leoni is the only Ancistrus
we examined with a tentacle located in an area between the posteromedial
and cheek sections (all other Ancistrus have the tentacles
absent from an area medial to the nasal
aperture and the base of the evertible cheek odontodes). Ancistrus
leoni also differs from A. macrophthalmus and
A. lithurgicus by having a very light ventral surface
(vs. ventral surface only slightly lighter than black sides)
(Souza, LS de. et al). Aquarium Care:
The Ancistrus genera make good community fish where
they do not grow too big for the aquarium. Some species have
different requirements in the aquarium so best to read up on
the species you have whereas if they need higher oxygen requirements
or not, or if they prefer cooler waters if they originate from
the southern parts of South America against the species from
further up north. Diet: Vegetable foods such
as cucumber and courgette and also tablet and meaty foods. Breeding:
Lay their eggs in caves as a cluster and the first signs of
the breeding process is a few tiny fry darting around the community
tank. Etomology: Named to honour our fallen
colleague, Ing. RNR Oscar León Mata (1964-2018), who
collected the holotype and dedicated much of his too-short life
to Venezuelan ichthyology. Oscar collected the type series of
this new species and was invaluable during many of the expeditions
to Venezuela, which would not have succeeded without him. He
is sorely missed by his family and friends (Souza, LS
de. et al). |
Common
Name: |
None |
Synonyms: |
None |
Family: |
Loricariidae |
Distribution: |
Venezuela: Amazonas
State, Atabapo District, Río Negro, in rapids about 1
km south (downstream) of the mouth of the Casiquiare. |
Size: |
Holotype: 8.0cm.
(3¼ins) |
Temp: |
22-27°c (71-81°f.) |
p.H. |
6.0-7.2. |
Reference: |
Souza, LS de; Taphorn, DC
& Armbruster, JW, 2019 "Review of Ancistrus
(Siluriformes: Loricariidae) from the northwestern Guiana Shield,
Orinoco Andes, and adjacent basins with description of six new
species" (abstract) (Zootaxa, Vol. 4552 No. 1).
www.suedamerikafans.de/en/wels-datenbank/welsart/?art=2650 |
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