| Pimelodidae (Long-whiskered catfishes) |
| 33 cm SL (male/unsexed); max.weight: 435.0 g |
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benthopelagic; freshwater |
| South America: Amazon River basin (Ref. 36506) and upper rio Paraná (Ref. 87365). |
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Dorsal spines (total): 2-2; Dorsal soft rays (total): 6-6; Anal soft rays: 11-13; Vertebrae: 43-43. Distinguished by the following combination of characters: small dots irregularly placed (forming 8-9 rows) and most developed in the anterior two thirds of body; the mouth with thick striated lips; an enlarged posterior branch of the dorsal premaxillary process synchondrally articulated with the lateroanterior margin of mesethmoid; a right-angled posterolateral margin of mesethmoid; the exposed centra of the 7th vertebrae; and a large pharyngobranchial 3 with a well developed dorsal crest. Differs from P. fur in possessing more gill rakers on the first arch (19-22 vs. 16-18) and a wider mouth (32.0-35.1% HL vs. 24.6--30); and from P. absconditus in having a larger interorbital distance (22.2-29.2% HL vs. 18.6-22.7), a relatively smaller ratio between orbital diameter and interorbital width (70.8-115.0 vs. 104.1-148.9); a shallower body (19.0-24.5% SL vs. 21.6-26.9), a shorter head (25.8-28.9% SL vs. 27.5-30.8), a smaller predorsal length (36.2-39.9% SL vs. 38.7-42.9) and a smaller prepelvic length (47.4-51.0% SL vs. 49.3-53.1). Vomerine tooth plates occasionally develop in P. heroldi while they are always present in P. absconditus and absent in P. fur (Ref. 41259).
Description: Dorsal fin with 2 spines and 6 branched rays; anal fin rays with 4-5 unbranched rays and 7-9 branched rays: iv,7, iv,8, iv,9, v,8; pelvic fin with 1 unbranched and 5 branched rays (Ref. 41259). |
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Least Concern (LC); Date assessed: 27 December 2020 Ref. (130435)
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| harmless |
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