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Tuesday, 13 November 2012

Arrowtooth Eel

Arrowtooth Eel body very elongate, slender, compressed; anus far anterior.Snout tip and chin bulbous, ornamented with conspicuous papillae and ridges. Nostrils broad-based; anterior tubular, close to tip of snout,posterior in front of lower margin of eye, with a fleshy rim. Gape moderate. A transversaly oriented pair of teeth on premaxillary- ethmoidarea, followed by a single row of 4 or 5 larger teeth, each set in individual pads of tissue on the vomer; lower jaw with 3 large teeth, widely spaced, followed by a uniserial row of tiny, close-set teeth; maxillary teeth reduced, acute and minute, uniserial. Gill openings small, parallel, close together on underside of head. Dorsal and anal finsconfluent with caudal fin; dorsal fin origin slightly behind level of gillopenings; pectoral fins absent. Lateral line present only on head andanterior part of trunk, with 8-10 pores, of which 4 or 5 before gillopenings. Vertebrae: total 190-205, abdominal 67. Colour: back-brown, flanks and head darker; small dark patches all over body. Size: to 26.5 cm.