Parotocinclus nandae, new species

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bekateen
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Parotocinclus nandae, new species

Post by bekateen »

Moderator's note: This fish was first reported (named Parotocinclus sp. 2. Paraguaçu River, municipality of Ibicoara, Bahia) in a student thesis, HERE: viewtopic.php?p=325484#p325484

Lehmann A., P., Camelier, P., & A. Zanata. (2020). Parotocinclus nandae, a new distinctive colored catfish (Loricariidae: Hypoptopomatinae) from the upper Rio Paraguaçu, Bahia State, northeastern Brazil. PLoS ONE 15(7): e0236690. https://doi.org/10.1371/journal.pone.0236690.

https://journals.plos.org/plosone/artic ... ne.0236690

Parotocinclus nandae
Abstract
A new species of Parotocinclus from the upper Rio Paraguaçu, Bahia, Brazil, is described. 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 of most specimens and dorsum of head with a conspicuous V-shaped light mark from tip of snout to nares. The new species is also distinguished from congeners by having the lower lip elongated posteriorly and reaching or surpassing the anterior margin of cleithrum on the pectoral girdle, the canal cheek plate on the ventral surface of the head reduced and with a slightly concave margin, and abdomen covered by small embedded platelets, without contact with each other and not arranged in a line between the pectoral-fin axilla and pelvic-fin origin. The presence of a thick and rough skin in the interradial membrane of pelvic fin exclusively in the females of P. nandae is reported by the first time to occurs in Siluriformes.
Attachments
Fig 1. Parotocinclus nandae, holotype. 39.8 mm SL, male
Fig 1. Parotocinclus nandae, holotype. 39.8 mm SL, male
Fig 2. Schematic drawing of the ventral side of head and pectoral girdle, (A) Parotocinclus nandae, showing the lower lip elongated posteriorly reaching to the pectoral girdle and the canal cheek plate reduced. (B) P. maculicauda, with the lower lip not elongated and the canal plate expanded mesially and posteriorly
Fig 2. Schematic drawing of the ventral side of head and pectoral girdle, (A) Parotocinclus nandae, showing the lower lip elongated posteriorly reaching to the pectoral girdle and the canal cheek plate reduced. (B) P. maculicauda, with the lower lip not elongated and the canal plate expanded mesially and posteriorly
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User avatar
bekateen
Posts: 6145
Joined: Tue Sep 09, 2014 5:50 pm
I've donated: $40.00!
My articles: 3
My images: 61
My cats species list: 104 (i:41, k:46)
My aquaria list: 30 (i:14)
My BLogs: 35 (i:116, p:1778)
My Wishlist: 32
Spotted: 127
Location 1: USA, California, Stockton
Location 2: USA, California, Stockton
Contact:

Re: Parotocinclus nandae, new species

Post by bekateen »

More figs from article
Attachments
Fig 3. Dermal plates of the lateral trunk and serial plate homology of Parotocinclus. (A) Parotocinclus nandae; (B) P. adamanteus; (C) P. spilosoma; (D) P. jimi; Scale bar 1 cm
Fig 3. Dermal plates of the lateral trunk and serial plate homology of Parotocinclus. (A) Parotocinclus nandae; (B) P. adamanteus; (C) P. spilosoma; (D) P. jimi; Scale bar 1 cm
Fig 5. Parotocinclus nandae, variation in color pattern in alcohol
Fig 5. Parotocinclus nandae, variation in color pattern in alcohol
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