Pseudoscopelus astronesthidens Prokofiev & Kukuev 2006

• Main Author: Melo, Marcelo R. S.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2010
• Subjects: Biodiversity; Taxonomy; Animalia; Chordata; Actinopterygii; Perciformes; Chiasmodontidae; Pseudoscopelus; Pseudoscopelus astronesthidens; North Atlantic
• Online Access: https://doi.org/10.5281/zenodo.5459825; http://treatment.plazi.org/id/852E9C20FFC4FFD7FF3CFAC0493A6150

Pseudoscopelus astronesthidens Prokofiev & Kukuev 2006 Figures 23 B, 24 A, 25 A, 28 K; Table 9. Pseudoscopelus astronesthidens Prokofiev and Kukuev 2006c: S27–S32, figures 2 D, 2 G–J, 3 C, 4, 5 [type locality western North Atlantic, 37°34’ N, 59°56’ W, holotype ZM MGU 16455, 150.0 mm]; Prokofiev and Kukuev 2006d: 71 [second species description]; 2008: 53–62, figures 10, 11, 26, 35–38, 63, 72, 76–78, 82, 85, 102–111 [species account]. Pseudoscopelus vorax Lavenberg 1974: 234–246, figures 46, 48, 49 [North Atlantic; name not available in accordance to the ICZN 1999]. Pseudoscopelus voratus Lavenberg 1974: 49 [misspelling of P. vorax , name not available in accordance to the ICZN 1999]. Pseudoscopelus altipinnis (non Parr 1933) Prokofiev and Kukuev 2005: 752, figure 2 [questionable]. Diagnosis. A species of the Pseudoscopelus astronesthidens species group, which can be distinguished within the group by a single characteristic: rakers on second ceratobranchial present ( vs. rakers on second ceratobranchial absent). It further differs from P. odontoglossum by having teeth on basihyal and second basibranchial in two rows, 19–25; ( vs. teeth on basihyal and second basibranchial in three rows, 28–40); and from P. australis by rakers on first ceratobranchial present, 2–9 ( vs. usually absent, a single raker rarely present on proximal portion); palatine teeth in two rows, 15–38 ( vs. palatine teeth in single row, 10–16); ppf present ( vs. ppf absent); prcf two pronged, U -shaped ( vs. prcf with three small prongs). Description. Medium-sized species of Pseudoscopelus , largest specimen examined 143.0 mm SL. Morphometric data summarized in Table 9. General body shape as described for genus with diagnostic characteristics of species and species group. First dorsal-fin rays vi (1), viii (4), ix (1); second dorsal-fin rays ii+21 (1), ii+22 (3), ii+23 (2); anal-fin rays iii+20 (1), iii+21 (2), iii+23 (1), iv+22 (1), iv+23 (1); pectoral-fin rays 11 (1), 12 (3), 13 (2); pelvic-fin rays I+5 (6); caudal-fin rays i+7+8+i (5), ...