Ammocoetes


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Ammocoetes

 

the larva of any of various lampreys (Petro-myzones). In some species the ammocoetes is the same length as the adult form. The body is eel-like, and the mouth is in the form of a triangular cleft. There are no teeth, and the eyes are underdeveloped. The gills are interior, and the fins are unpaired and poorly developed. Ammocoetes live in rivers, streams, and brooks. They spend much of their lives buried in the soil. The larvae feed on small invertebrates and detritus. At the age of three to six years they undergo metamorphosis and become adults.

References in periodicals archive ?
Earlier reports (Marenchin & Sever 1981, and references therein), however, suggested that ammocoetes collected in Christiana Creek and Turkey Creek might be northern brook lampreys.
In addition to chestnut lamprey, Ichthyomyzon ammocoetes were observed at all three sites, and one larval L.
This information is especially needed to avoid misidentification of early life stages of lampreys in the field (Mesa and Copeland, 2009), given the often incorrect assumption that all juvenile lampreys are Pacific lamprey (Kostow (1); Mesa and Copeland, 2009) and the difficulties of identifying small ammocoetes to species (Goodman et al.
Iodine metabolism of the endostyle of larval lampreys, Ammocoetes of Lampetra japonica.