Saturday, July 23, 2016

[Ichthyology • 2016] Odontanthias cauoh • A New Species of Anthiadinae (Teleostei: Serranidae) from São Pedro and São Paulo Archipelago, Brazil, Equatorial Atlantic


Odontanthias cauoh 
Carvalho-Filho, Macena & Nunes, 2016 

   Red Jewelfish |  DOI: 
10.11646/zootaxa.4139.4.10

Abstract

A new species of Anthiadinae, Odontanthias cauoh, is described from São Pedro and São Paulo Archipelago (SPSPA), Brazil, Equatorial Atlantic. The new species differs from its only Atlantic congener by a combination of several characters: pectoral-fin rays 20; total gill rakers on first arch 39; vomerine tooth patch with a posterior prolongation; pelvic fin not reaching base of last anal-fin ray; dorsal, anal and pelvic fins scaleless; and coloration (dorsal, anal, and pelvic fins mostly dark red). The record of the new species contributes to increase the fish endemism in SPSPA.

Keywords: Pisces, Odontanthias cauoh, taxonomy, oceanic islands, endemism


FIGURE 2. Odontanthias cauoh sp. n., MZUSP 111260,holotype, 165.2 mm SL from São Pedro and São Paulo Archipelago, Brazil.  

Diagnosis. The new species differs from its only Atlantic congener by a combination of several characters: pectoral-fin rays 20; total gill rakers on first arch 39; vomerine tooth patch with a posterior prolongation; pelvic fin not reaching base of last anal-fin ray; dorsal, anal, and pelvic fins scaleless; and coloration (dorsal, anal, and pelvic fins mostly dark red). 

Distribution. Odontanthias cauoh sp. n. is currently known only from São Pedro and São Paulo Archipelago, Brazil, Western Central Atlantic (Fig. 1). No data about its depth range is available.

Etymology. The new species is named after the popular name given by the professional fishermen to the fish at St. Paul’s Rocks, “Carolina”, shortened to the nickname (Cauó) of the first author’s elder daughter, Ana Carolina S.R. Carvalho, pronounced as “kau-oh”. Proposed English name: Red Jewelfish due to the color of the known specimen. Proposed Portuguese (Brazilian) name: Carolina.

Biological aspects. The stomach of the holotype was examined and found to be empty, with no trace of biological material. The gonads were analyzed macroscopically, indicating an immature female specimen.


Alfredo Carvalho-Filho, Bruno César Luz Macena and Diogo Martins Nunes. 2016. A New Species of Anthiadinae (Teleostei: Serranidae) from São Pedro and São Paulo Archipelago, Brazil, Equatorial Atlantic. Zootaxa. 4139(4); 585–592. DOI: 10.11646/zootaxa.4139.4.10

No comments:

Post a Comment