Pettibonesia Nemésio, 2006

Huber, Roger; Kobi, Hans, 2006, Guttannen BE, Westsüdwestansicht des Westhanges mit der Kahlfläche im Griwald, Zootaxa 1260, pp. 67-68 : 67-68

Pettibonesia Nemésio , nom. nov.

Wilsoniella Pettibone 1993: 84 [type­species: Wilsoniella furcosetosa (Loshamm) , by original designation], nec Wilsoniella Khalfin, 1939: 83 (type­species: Wilsoniella prima Khalfin , by original designation).

Pettibone (1993) erected the genus Wilsoniella for one species ( W. furcosetosa ) of polychaete (Annelida: Polynoidae ) originally described in Malmgrenia McIntosh. Although Chambers and Muir (1997) questioned Pettibone’s arrangement and consequently the validity of Wilsoniella , however, most authors have treated this genus as valid (e.g. Dauvin et al. 2003; Martin et al. 2003). Nevertheless, the name Wilsoniella had been used twice before ( Khalfin 1939; Eichler 1940) and, consequently, is preoccupied by the oldest one, Wilsoniella Khalfin. As there is no junior synonym for Wilsoniella Pettibone , the generic name Pettibonesia nom. nov. is established to replace it. The genus is named in honor of the zoologist M. H. Pettibone. As a result, the following new combination is introduced: Pettibonesia furcosetosa (Loshamm) comb. n.

In the Regnum Plantae, Wilsoniella C. Müll. (Bryophyta: Ditrichaceae ) is a valid genus with ten recognized species.

Acknowledgements. I express my gratitude to Dr. R. C. Dalgleish and the anonymous referees for their guidance on earlier versions of this manuscript. Dr. Dalgleish also kindly provided me a reprint of Guimarães (1940) paper.

ANDRÉ NEMÉSIO Departamento de Zoologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais. Caixa Postal 486, Belo Horizonte, MG. 30.123­970. Brazil. E­mail: [e-mail] or [e-mail]