Raredon's Bandfish

description

Description. A species of Owstonia with LL pattern type 1, consisting of a simple lateral line that originates from the posttemporal sensory canal near the anterodorsal margin of gill opening, curves upward and backward then continues posteriorly just below dorsal-fin base to soft rays 17 / 18. Dorsal fin III, 19; anal fin I, 12; pectoral fin 18; gill rakers 14 + 24 or 25. Vertebrae: precaudal 11, caudal 16, total 27; anal-fin pterygiophores anterior to 1 st haemal spine 3. Oblique body scale rows in mid-lateral series about 31 – 32; nape scaly and cheek scale rows 3 – 4 (Fig. 12 H). Preopercle lower limb margin without spines. Papillae in slight depression behind tip of premaxillary ascending processes 4, arranged in 2 pairs, with the posterior pair bluntly rounded and the other two smaller and tapered. Teeth in outer row of each premaxilla 35; 2 slightly larger, hooked, inner teeth anteriorly. Teeth in lateral row of each dentary 19 / 20; symphyseal teeth 4, relatively short and bluntly conical, and with 1 inner tooth anteriorly. Depressed pelvic fin extending to slightly behind anal-fin origin. Caudal fin lanceolate. Caudal fin 2.5 times in SL; head 3.1 times in SL; body depth a

Hidden diversity in deep-water bandfishes: review of Owstonia with descriptions of twenty-one new species (Teleostei: Cepolidae: Owstoniinae)

diagnosis

Diagnosis. A species of Owstonia with LL pattern type 1; dorsal-fin rays III, 19; anal-fin rays I, 12; lower margin of preopercle smooth; oblique body scale rows in mid-lateral series about 31 – 32.

Hidden diversity in deep-water bandfishes: review of Owstonia with descriptions of twenty-one new species (Teleostei: Cepolidae: Owstoniinae)

distribution

Distribution. (Fig. 27) Known only from the type locality off Mozambique, where trawled in 311 ‒ 314 m.

Hidden diversity in deep-water bandfishes: review of Owstonia with descriptions of twenty-one new species (Teleostei: Cepolidae: Owstoniinae)

etymology

Etymology. Named for Sandra J. Raredon, Smithsonian Institution, in appreciation of her expertise with digital radiographs and photographs, which has contributed significantly to this monograph.

Hidden diversity in deep-water bandfishes: review of Owstonia with descriptions of twenty-one new species (Teleostei: Cepolidae: Owstoniinae)