Article history: Received 2 March 2014 Accepted 18 June 2014 Available online 9 July 2014 Submitted by R. Brualdi MSC: 05C50 15A16 82C20

Article history: Received 7 November 2013 Received in revised form 17 April 2014 Accepted 2 August 2014 Available online 7 August 2014

Article history: Received 2 April 2014 Received in revised form 24 November 2014 Accepted 26 December 2014 Available online 5 January 2015

Article history: Received 4 April 2014 Accepted 20 November 2014 Available online 2 December 2014 Submitted by Y. Wei MSC: primary 15A18 secondary 15A69

Article history: Received 2 December 2013 Received in revised form 27 August 2014 Accepted 7 September 2014 Available online 18 September 2014

Article history: Received 2 July 2013 Received in revised form 7 February 2014 Accepted 12 March 2014 Available online 18 March 2014

We describe a new species from the genus Trevathana Anderson, 1992, collected from the Cocos/Keeling Islands in the Indian Ocean. Trevathana noae sp. nov. is similar to other species of Trevathana by its external shell and opercular valve morphology. It is distinct from congeners in that the tergum has a distinct spur which lacks an internal tooth in adult specimens. A key to the known species ...

Article history: Accepted 2 May 2014 Available online 24 May 2014

Article history: Received 22 September 2013 Accepted 2 May 2014 Available online 15 May 2014

Article history: Received 5 October 2013 Received in revised form 19 March 2014 Accepted 20 March 2014 Available online 2 April 2014