Ituglanis
passensis
Fernández & Bichuette, 2002
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Family:
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Trichomycteridae
(Pencil or parasitic catfishes)
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Order:
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Siluriformes
(catfish)
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Class:
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Actinopterygii (ray-finned fishes)
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In this site name:
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Max. size:
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6.3 cm SL (male/unsexed; Ref. 46923) |
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Environment: |
demersal; freshwater; pH range: 7.6 – 8.4; depth range 0 – 1 m
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Climate: |
tropical; 19 – 23°C |
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Importance:
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Resilience: |
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Distribution:
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South America: known only from Passa Três cave, Brazil.
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Morphology:
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Anal
soft rays: 9;
Vertebrae: 36. Reduced dark pigmentation on the head and body where pigmentation varies from yellowish to light gray, with scattered melanophores limited to the dorsal region of the body. Degree of development of the eyes ranges from their appearing as black dots to being externally invisible. Maxillary barbel extending to the anterior margin of pectoral fin. First pectoral-fin ray, a short filament. Ribs 7. Head length 16-17% SL. Premaxilla rectangular with 3-4 rows; outer row conical (Ref. 46923).
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Biology: |
Occurs in small riffles with slow current 15-20 cm deep on average. Exhibits crypto-biotic habits, hiding in the gravel bottom or under limestone blocks. No observed agonistic behavior (Ref. 46923).
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Red List Status: |
Not in IUCN Red List (Ref. 57073)
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Dangerous:
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harmless
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Coordinator: |
Pinna, Mário de
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