Classification / Names  				 
				Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa				
			
				
				Teleostei (teleosts) > 
Siluriformes (Catfishes) > 
Trichomycteridae (Pencil or parasitic catfishes) > Trichomycterinae						
							
							Etymology: pachonensis: Named for its type locality, the Pachón in San Juan province. An adjective.
Eponymy: Dr Silvina Adela Menu-Marque is an Argentinean zoologist at the Department of Biological Sciences, University of Buenos Aires, where her doctorate was awarded (2002). [...] (Ref. 128868), visit book page.
						
					
				
					Environment: milieu / climate zone / depth range / distribution range					
						Ecology					
				
				
				
					Freshwater;  benthopelagic. Temperate				
				
			
			
			
				
				
				
					South America: Andean cordillera of San Juan, Argentina.
				
				
			
			
				
					Size / Weight / Age
				
				
				
					Maturity: Lm ?  range ? - ? cm
 Max length : 5.8 cm SL male/unsexed; (Ref. 119034)				
				 
			
			
						
				
					Short description					
					Identification keys | Morphology | Morphometrics					
				
				
			
			
			
			
			
			
			
							
			
			
			
			
				
					Life cycle and mating behavior					
					Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae				
				
				
				
								
				
			
			 
				
				
				
					Fernández, L. and J. Liotta, 2016. Silvinichthys pachonensis, a new catfish from high altitude, with a key to the species of the genus (Siluriformes: Trichomycteridae). Ichthyol. Explor. Freshwat. 27(4):375-383. (Ref. 119034)
				
				 
			
			
			
							
					
						IUCN Red List Status   (Ref. 130435: Version 2025-1)
					
					
				 
					
			
			
			
			
			
			
			
				
					Threat to humans  
				
				
				
					  Harmless				
				
			 
			
			
			
			
				
					Human uses  				
				
				
									
				
				
			
			
						
			
			
			
				
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Special reports
 
				
			
			
			
				
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					Internet sources
				
				
			
			
			
				
					Estimates based on models				
				
				
				
				
				
					
					Phylogenetic diversity index  (Ref. 
82804):  PD
50 = 0.5078   [Uniqueness, from 0.5 = low to 2.0 = high].					
													Bayesian length-weight: a=0.00661 (0.00279 - 0.01564), b=2.99 (2.79 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 
93245).
					
					Trophic level  (Ref. 
69278):  3.2   ±0.4 se; based on size and trophs of closest relatives					
											
				
				
									
					
											
				
									
					Fishing Vulnerability  (Ref. 
59153):  Low vulnerability (10 of 100). 
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