www.scotcat.com


Your internet guide to
all things catfish


 

 

 

 

 

 

 

 

 

Back to Family page Back to Family page

Hypoptopoma thoracatum Günther, 1868

Image contributors to this species:

Allan James (1) Peru Aquarium Group (1) 

ScotCat Sources:

Etymology = Genus Etymology = Species

Other Sources:

Fishbase  Search Google   All Catfish Species Inventory  Search ispecies
 

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: 27. This species is distinguished from all congeners by having an elongated spot of black melanophores along the caudal-fin branched rays, not distinctly connected to the lanceolate plates at the base of the fin. The spot is extended over a larger number of lower-lobe rays than upper-lobe rays and along one-half to more than two-thirds of the ray length. Sexual Differences: Male urogenital papilla short and slender, covered by anterior flaplike anus. Males with patch of tightly arranged small odontodes oriented as a swirl, variably covering first to fourth plates of ventral series, lateral to urogenital papilla. Males with flaplike anus along posterior margin of pelvic spine variably developed; when present, short, weakly developed, restricted to basal one-third to half of spine. Female anus tubular, without separate urogenital papilla. In females, size and arrangement of odontodes on plates lateral to anus similar to adjacent plates, without distinct patch of differentially arranged odontodes. Female pelvic spine without flap of soft tissue on posterior surface.

Common Name:

None

Synonyms:

None

Family:

Loricariidae ycipitidae

Distribution:

South America: Amazon River basin. Type locality: Xeberos, upper Amazon River, Peru.

Size:

8cm. (3¼ins)

Temp:

23-27°c (73-81°f.)

p.H.

6.0-7.2.

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
Ferraris, C.J. Jr., 2007. Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa 1418:1-628.

 

 

Back to Family page


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 





 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

                                                                                           updated = June 26, 2016 © ScotCat 1997-2016