ystematics and Biodiversity Volume 10 I Number 4 December 2012 ISSN 1477-2000 NATURAL HISTORY MUSEUM Taylor &. Francis Group Systematics and Biodiversity Contents Volume 10 Number 4 I December 2012 page Editorial 391 Use and misuse of the Impact Factor EHiot Shubert Perspective 395 Woíbachia (Rickettsiales) infections and bee (Apoidea) barcoding: a response to Gerth et al. Julie K. Stahlhut, Jason Gibbs, Cory S. Sheffield, M. Alex Smith and Laurence Packer Research Articles 403 Molecular taxonomy reveáis broad trans-oceanic distributions and high species diversity of deep-sea clams (Bivalvia: Vesicomyidae: Pliocardiinae) in chemosynthetic environments Asta Audzijonyte, Elena M. Krylova, Heiko Sahling and Robert C Vrijenhoek 417 Systematics of the coral genus Craterastrea (Cnidaria, Anthozoa, Scleractinia) and description of a new family through combined morphological and molecular analyses Francesco Benzoni, Roberto Arrígoni, Fabrizio Stefani and Jarosíaw Stolarski 435 First records of didernnid ascidians harbouring Prochloron from Caribbean Panamá: genetic relatioriships between Caribbean and Pacific photosymbionts and host ascidians Euíchi Hirose, Xavier Turón, Susanna López-Legentíl, Patrick M. Erwin and Mamiko Hirose 447 Phylogeny and taxonomy of the Kermia-Pseudodaphnella (Mollusca: Gastropoda: Raphitomidae) genus complex: a remarkable radiation via diversífication of larval development Alexander E. Fedosov and Nicolás Puillandre 479 The status of Eurostus dussumierü and Hypsirhina chinensis (Reptilia, Squamata, Serpentes): with comments on the origin of saít tolerance in homalopsid snakes A. Biju Kumar, Kate L Sanders, San// George and John C. Murphy 491 Taxonomy-testing and the 'Goldilocks Hypothesis': morphorneíric analysis of species díversity in living and extinct Hispaniolan hutías James Hansford, José M. Nuñez-Miño, Richard P. Young, Selina Brace, Jorge L Brocea and Samuel T. Turvey 509 Cryptic diversity among the achaetous Manon/na (Annelida, Clítellata, Enchytraeidae) Lisa Matamoros, Emilia Rota and Christer Erséus 527 Can the red palm mite threaten the Amazon vegetation? Manoel G. C. Gondim Jr., Tatiane M. M. G. Castro, Alberto L Marsaro Jr., Den/se Navia, José W. S. Meló, Peterson R. Demíte and Gilberto J. de Moraes 537 Floristic affinities in montane grasslands in eastern Brazil Hilda María Longhi-Wagner, Cassiano Aimberé Dómeles Welker and Jorge Luiz Waechter 551 Reviewer acknowledgements MIX NATURAL FSC HISTORY TaylorüFrancis Group FSCS C004839 MUSEUM.