Oneirodes alius Seigel & Pietsch 1978

Escal appendage pattern C; esca with a single elongate tapering anterior appendage, 33.3–43.0% SL, without internal pigment; a pair of filamentous medial appendages, half the length of escal bulb in 18-mm paratype, minute in 38-mm holotype; a rounded terminal escal papilla with two bilaterally placed distal pigment spots; a short unpigmented anteroposteriorly compressed posterior escal appendage; lateral and anterolateral escal appendages absent.

Subopercle large, elongate, dorsal end tapering to a point, without indentation on posterodorsal margin; length of ventral fork of opercle 30.3–32.3% SL; ratio of lengths of dorsal and ventral forks of opercle 0.44–52.

Epibranchial teeth absent; teeth present on pharyngobranchial II; total number of teeth in upper jaw 28–32, in lower jaw 33–37; number of teeth on vomer 6; dorsal-fin rays 5–7; anal-fin rays 4; pectoral-fin rays 15 or 16.

Measurements in percent of standard length: head length 50.0; head depth 43.0–48.5; premaxilla length 38.0; lower jaw length 47.5; illicium length 26.5–35.5.

View data on Catalog of Fishes here.

Oneirodes alius is known only from the Halmahera Sea. The holotype, three non-type specimens (11.5–12 mm), and the 21-mm paratype were captured with a closing net between 575–600 m, 700–1000, and 1000–1100 m, respectively. The remaining two specimens were captured somewhere between the surface and 1200 m.

Oneirodes alius is a member of the O. schmidti-group. In addition to its unique escal morphology, O. alius appears to differ from other members of the O. schmidti-group in having fewer lower jaw teeth.

Meso- to bathypelagic.

Pietsch TW. 2009. Oceanic Anglerfishes: Extraordinary Diversity in the Deep Sea. Berkley: University of California Press. 638 p.

Although unknown, males of O. alius are certainly free-living and presumed non-parasitic, as is the case with most oneirodid taxa.

Known from 7 metamorphosed females (10–38 mm).

ALPHA HELIX station 122, Halmahera Sea, 0°36.3'S, 129°03.2'E, RMT-8, 575–600 m, 2240–2340 hr, 16 May 1975.

Holotype of Oneirodes alius: LACM 36026-1, 38 mm.

Characterized by having escal morphology: esca with single elongate tapering anterior appendage, 33.3-43.0% SL, without internal pigment; pair of filamentous medial appendages; rounded terminal escal papilla with two bilaterally placed distal pigment spots; short, unpigmented, anteroposteriorly compressed posterior escal appendage; lateral and anterolateral escal appendages absent; large, elongate subopercle with dorsal end tapering to a point, without indentation on posterodorsal margin; length of ventral fork of opercle 30.3-32.3% SL; ratio of lengths of the dorsal and ventral forks of opercle 0.44-0.52; absence of epibranchial teeth; presence of teeth on pharyngobranchial II; upper jaw teeth 28-32, lower jaw teeth 33-37; teeth on vomer 6; dorsal fin rays 5-7; anal fin rays 4; pectoral fin rays 15-16; head length 50.0% SL; head depth 43.0-48.5% SL; premaxilla length 38.0% SL; length of lower jaw 47.5% SL; length of illicium 26.5-35.5% SL (Ref. 86949).

Dorsal soft rays (total): 5 - 7; Analsoft rays: 4

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Oneirodes alius Oneirodes generoko animalia da. Arrainen barruko Oneirodidae familian sailkatzen da.

印尼夢角鮟鱇，為輻鰭魚綱鮟鱇目棘茄魚亞目夢角鮟鱇科的其中一種。分布於西太平洋區的印尼海域，屬深海魚類，棲息深度約575至1200公尺，背鰭軟條5至6枚；臀鰭軟條4枚，體長可達3.8公分。