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Author: Jordan & Evermann, 1896

Artediellus atlanticus Jordan & Evermann, 1896

Diagnosis: body and head without granulations or dermal knobs. occipital protuberances (if present) as small obtuse knobs or a blunt. conical spine directed backward; head without barbels (except short, often knob-like, barbel on upper jaw); nasal spine present: chin pore single. Spinous dorsal fin lower, height less than length. membranes notched, without free finray ends in males. D Vll-IX + 12-15; A 10-13; P 18-23. Lateral line pores 17-24. Colour: green-brown with cross-bands; oblique dark stripes on fins, broader and more prominent on spinous dorsal in males; no small round white spots or black blotch on spinous dorsal in males. Size: to 25 cm, usually 10-11 cm.

Habitat: benthic on sandy or muddy bottoms at 35-900 m, with temperatures of -2 to +3 C and salinities of 34-35ä. Food: benthic polychaetes (Harmothoe, Nephthys, Lumbriconereus, Myriochele, etc.), small molluscs ( Yoldiella, Yoldia, Velutina), and very rarely small crustaceans. Reproduction: spawns August September (Barents Sea); eggs demersal, about 50-150, diameter 4 mm.

Distribution: eastern coasts of Greenland northward to 74`17 N, Iceland, the Faroes; also, Novaya Zemlya (but not White Sea), southern part of Barents Sea, Scandinavian coast to Skagerrak, the Orkneys. Irish Sea and around coasts of Ireland. Elsewhere, western Greenland to 77'`28' N and North American coasts southward to Cape Cod northward to southeast Baffin Island (McAllister, 1990).

Subspecies

Artediellus atlanticus atlanticus: occipital protuberances present; the Faroes, Iceland, eastern Greenland. western Greenland southward to Cape Cod (Clofnam 188.2.2.1)
Eggs, larvae and young stages. No data.
Otoliths (sagitta). No data.

Artediellus atlanticus europeus: no occipital protuberances; European coasts (Clofnam 188.2.2.2).
Eggs, larvae and young stages. Rass, 1929: 14 | Andriashev, 1954 (1964): 108.
Otoliths (sagitta). Schmidt, 1968: 57, pl. 11 (fig. 160), pl. 23 (as A. atlanticus).

Guelpen (1985, MS) revised the species and stated that subspecies disignations appaered unfounded (McAllister, 1990).

Hookhorn sculpin (Artediellus atlanticus)