Journal of the Marine Biological Association of the United Kingdom

Research Article

Pseudopolydora species associated with mollusc shells on the south coast of South Africa, with the description of Ps. dayii, sp nov.

Carol A. Simona1 c1

a1 Department of Zoology and Entomology, Rhodes University, Grahamstown, 6140, South Africa and Department of Botany and Zoology, Stellenbosch University, Matieland, Private Bag X1, Stellenbosch, 7602, South Africa

Abstract

Two species of the genus Pseudopolydora, Ps. dayii, sp. nov. and Ps. antennata, were associated with gastropods on the south and south-east coasts of South Africa. Pseudopolydora dayii is characterized by prominent post-chaetal notopodial lobes on chaetiger 1 with very long chaetae, a prominent occipital tentacle, having hooded hooks that start on chaetiger 9, branchiae that start on chaetiger 6, stout hooks and lobes placed latero-posteriorly to the hooded hooks in posterior chaetigers. It is a surface-fouler and was found on several species of wild gastropods at four of the five sites sampled and from additional material from the south-west coast and on cultured abalone (Haliotis midae) at a farm on the south-west coast. Three individuals of Ps. antennata were found only with oysters at the easternmost site. This was the first record of this species outside of the Western Cape Province and it is possible that their association with the oysters was fortuitous.

(Received January 17 2008)

(Accepted November 14 2008)

(Online publication May 15 2009)

Correspondence:

c1 Correspondence should be addressed to: C.A. Simon, Department of Botany and Zoology, Stellenbosch University, Matieland XI, Stellenbosch, 7602, South Africa email: csimon@sun.ac.za