Description:
The type species of R. macromystax is Loricaria
macromystax Günther, 1869 from Peru, Amazon
River. Gender: feminine. This genus is distributed
in the upper Amazon and Orinoco River basins, Essequibo,
and Tocantins drainages. Although poorly known and
uncommon in collections, Rhadinoloricaria
is known to occur over sandy substrates. Ecological
and behavioral data are unavailable. Most studies
of Rhadinoloricaria are based on the holotype,
which is in a poor state of preservation (particularly
its mouth, which is one of the most important features
for the study of this group). The holotype is an adult
with complete abdominal plate cover; smaller specimens
have incomplete abdominal plate cover forming a double
median row of platelets. This feature, which is also
observed in Crossoloricaria, and one species
of Dasyloricaria, could reflect a common
developmental pattern of abdominal plates among these
taxa (Covain, R et al
2015). Habitat:
Occurs in the main river and major tributaries, always
over sandy beaches. Reproduction:
These taxa are abdomino-lip brooders. Eggs are laid
in a single layered mass, and are attached to the
surface of the lower lip and abdomen of the male. Aquarium Care: Likes to
bury itself in a deep sandy bottom substrate with
only the eyes being visible so you would need to provide
this for aquarium maintenance. A good water current
and partial water changes are needed to keep this
species/genera in good condition. As this genera is
smaller than the other larger lip brooders of the
Pseudohemiodon genus, Rhadinoloricariawould be a better bet for aquarium husbandry.
Diet: Feed with tablet foods, frozen
mosquito larvae, daphnia etc. Etymology:
The specific name macromystax: macro-, from
makrós long or large; mýstax, moustache,
moustache, referring to long barbel on upper lip,
which extends beyond axil of pectoral fin.
Common
Name:
None
Synonyms:
Loricaria macromystax
Family:
Loricariidae
Distribution:
South America:
Upper Amazon River basin.
Size:
14.0cm (5½inch)
Temp:
24-27°c (75-81°f)
p.H.
6.5-7.5.
IUCN
Red List
The
species is listed as Data
Deficient because of a lack of information
on its exact range, population status, and the threats
that are affecting it, so it does need updating (IUCN
2016).
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