Functional and Evolutionary Implications of Opposed Bands, Big Mouths, and Extensive Oral Ciliation in Larval Opheliids and Echiurids (Annelida).

From: The Biological Bulletin | Date: August 1, 1999| Author: MINER, BENJAMIN G.; SANFORD, ERIC; STRATHMANN, RICHARD R.; PERNET, BRUNO; EMLET, RICHARD B. | Copyright information

BENJAMIN G. MINER [1]

ERIC SANFORD [2]

RICHARD R. STRATHMANN [3]

BRUNO PERNET [3]

RICHARD B. EMLET [4]

Abstract. Larvae of two annelids, the opheliid Armandia brevis and the echiurid Urechis caupo, captured small particles between opposed prototrochal and metatrochal ciliary bands and also captured large particles with wide ciliated mouths. The body volume of larval A. brevis increased more rapidly than the estimated maximum ...

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