|All Fishes Data Sheet|
|Scientific Name||Parotocinclus nandae Lehmann A., Camelier & Zanata, 2020|
|Type Locality||Upper Rio Paraguaçu, under bridge on highway BA-142, between Ibicoara and Barra da Estiva (9 km from Ibicoara), Bahia, Brazil, 13°26'10.32"S, 41°20'19.14"W, elevation 1068 meters.|
|Pronunciation||parr auto SINK luss|
|Etymology||Parotocinclus: Greek, para in the side of + greek, ous, otis = ear + Greek, kygklos, ou = a fish. The specific epithet honors Maria Fernanda Boaz Lehmann, daughter of the first author of this paper and affectionately known as “Nanda”. A noun in genitive.|
|Identification||The genus Parotocinclus can readily be distinguished from Otocinclus by the presence of an adipose fin in the former.
The new species is distinguished from all congeners by its unique color pattern, with irregular dark blotches resulting in a somewhat marble-spotted pattern on head and trunk, and dorsum of head with a conspicuous pale V-shaped mark extending from tip of snout to, or slightly posterior of, nares. Parotocinclus nandae can be further diagnosed from its congeners by having the lower lip elongated posteriorly, longer than wide, and reaching to or surpassing the anterior margin of cleithrum (vs. lower lip not elongated, wider than longer, and falling distinctly short of pectoral girdle); canal cheek plate on the ventral surface of the head not expanded mesially or posteriorly, with a slightly concave margin (vs. canal cheek plate expanded mesially or posteriorly, with triangular tip); and abdomen covered by small embedded platelets not in contact with each other and not aligned between pectoral- and pelvic-fin origins (vs. abdomen completely lacking plates or covered with plates usually contacting each other and arranged in transverse lines).
|Sexing||Male Parotocinclus nandae possess a conical urogenital papilla, positioned just behind the anal opening; papilla absent in females. Males also possess a developed dermal flap along the postero-dorsal margin of the first pelvic-fin unbranched ray, distinctly higher near fin base; flap absent in females. The pelvic fin is longer in males than in females; posterior tip of adpressed pelvic fin of males reaches to or surpasses anal-fin origin. The interradial membrane of pelvic fin of males is thin and translucent and falls short of that point in females, while in females it is thicker with opaque aspect and rough texture. Furthermore, females reach a larger size than males.|
|Distribution||Known only from two localities in the upper portion of the Rio Paraguaçu basin, Chapada Diamantina domain, Bahia State, Brazil.
Bahia State Rivers, Paraguaçu (click on these areas to find other species found there)
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|IUCN Red List Category||Not Evaluated|
|Other Parameters||P. nandae was found in a small clear water stream with alternating stretches of fast current and backwater, and riparian vegetation mainly composed of shrubs and trees. The specimens were captured in the fast current portion of the river, in a stretch approximately 2–4 m wide and 0.3 to 1.0 m deep, with pebbles and organic debris composing the substrate and supporting a large amount of subaquatic vegetation.|
|Furniture||See water parameters.|
|Breeding Reports||There is no breeding report.|
|Reference||PLoS ONE v. 15 (no. 7): e0236690, pp 2, Figs. 1, 2A, 3A, 4-6.|
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|Last Update||2021 Aug 31 11:23 (species record created: 2020 Jul 31 18:16)|