Hypoptopoma
inexspectatum
(Holmberg, 1893) |
| |
| Image
contributors to this species: |
|
C. H. Bishop
(5) |
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ScotCat Sources: |
 
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| Other
Sources: |
  
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| Relevant
Information: |
This genus is recognised
by the flat head and large eyes that are set latterly on the head
and their heavy body armour. The ventral region is also armored
and you can sometimes identify a species by the pattern on the underbelly.
In saying that the species in this genus are notoriously difficult
to identify and most of the time you would need the location of
the catchment area or even down to the river itself to pinpoint
a certain species. Vertebrae:
25. This species is distinguished from its congeners by having the
odontodes on the snout margin, the rostral plate, and first and
second infraorbitals arranged in regular series; along the rostral
margin, the dorsal and ventral series are separated by an odontode-free
discontinuity approximately as wide as the base of individual odontodes;
along the first and second infraorbitals, the discontinuity becomes
narrower, but forms a dividing line between ventral and dorsal odontode
series; odontode arrangement becomes more irregular posterolateral
to the second infraorbital, and individual odontodes become roughly
oriented with the trunk axis; in all other congeners, the ventral
and dorsal odontodes on the rostrum are variably separated and/or
covered by soft tissue, and odontodes are typically not clearly
aligned in series. These particular specimens were captured by the
image contributor (2003) in the Paraná River, Argentina,
Misiones province, in its capital, Posadas City and also 25 miles
from Parana City near to the town of Valle María
(2004). |
| Common
Name: |
None |
| Synonyms: |
Aristommata
inexpectata, Hypoptopoma guentheri |
| Family: |
Loricariidae
ycipitidae |
| Distribution: |
Argentina:
Paraná/Paraguay River basin. Type Locality:
Río Paraguay, Formosa Prov., Argentina. |
| Size:
|
7cm. (2¾ins) |
| Temp: |
23-26°c
(73-79°f.) |
| p.H. |
6.0-7.0. |
| Reference: |
Aquino, A.E. and
S.A. Schaefer 2010 Systematics of the genus Hypoptopoma
Günther, 1868 (Siluriformes, Loricariidae). Bull. Amer. Mus.
Nat. Hist. 336:1-110
ScotCat Article: Collecting in the Paraná
River Basin, Argentina, (Part 2) |
|
Family: Loricariidae
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| Click
on thumbnails |
 Hypoptopoma
inexspectatum
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 Hypoptopoma
inexspectatum
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 Hypoptopoma
inexspectatum
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 Hypoptopoma
inexspectatum
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 Hypoptopoma
inexspectatum
Ventral view
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