Teleostei (teleosts) > 
Siluriformes (Catfishes) > 
Loricariidae (Armored catfishes) > Hypostominae						
							
							Etymology: Pseudolithoxus: Greek, pseudes = false + Greek, lithos = stone + Greek, oxys = sharp; anthrax: From its dark, coal-like color; noun in apposition.
						
					
				
					Environment: milieu / climate zone / depth range / distribution range					
						Ecology					
				
				
				
					Freshwater;  demersal. Tropical				
				
			
			
			
				
				
				
					South America:  Upper and lower Orinoco tributaries, Caura and Aro rivers in Venezuela.
				
				
			
			
				
					Size / Weight / Age
				
				
				
					Maturity: Lm ?  range ? - ? cm
 Max length : 12.4 cm SL male/unsexed; (Ref. 36713)				
				 
			
			
						
				
				
				
					Dorsal spines (total): 2; Dorsal soft rays (total): 7 - 8; Anal spines: 1; Anal soft rays: 4 - 5. Body charcoal gray to black with white spots.  No white band along the edge of the caudal fin.  Base of dorsal fin length to caudal depth ratio 2.1-2.2.  Lateral line plates 24-26; dorsal plates 7-8; interdorsal plates 6-7; adipose-caudal plates 7-8; folded dorsal fin plates 11-14; and postanal plates 12-14 (Ref. 40437).
Body shape (shape guide): elongated; Cross section: compressed.				
				 
			
			
			
			
			
			
			
							
			
			
			
			
				
					Life cycle and mating behavior					
					Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae				
				
				
				
								
				
			
			 
				
				
				
					Armbruster, J.W. and F. Provenzano, 2000. Four new species of the suckermouth armored catfish genus Lasiancistrus (Loricariidae: Ancistrinae). Ichthyol. Explor. Freshwat. 11(3):241-254. (Ref. 40437)
				
				 
			
			
			
							
					
						IUCN Red List Status   (Ref. 130435: Version 2025-1)
					
					
				 
					
			
			
			
			
			
			
			
				
					Threat to humans  
				
				
				
					  Harmless				
				
			 
			
			
			
			
				
					Human uses  				
				
				
					Fisheries: commercial; aquarium: commercial				
				
				
			
			
						
			
			
			
				
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					Internet sources
				
				
			
			
			
				
					Estimates based on models				
				
				
				
				
				
					
					Phylogenetic diversity index  (Ref. 
82804):  PD
50 = 0.5156   [Uniqueness, from 0.5 = low to 2.0 = high].					
													Bayesian length-weight: a=0.01549 (0.00719 - 0.03336), b=2.98 (2.81 - 3.15), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 
93245).
					
										
				
					
											
				
				
										
						Resilience  (Ref. 
120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).					
											
				
									
					Fishing Vulnerability  (Ref. 
59153):  Low vulnerability (10 of 100). 
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