228 



BULLETIN 91, UNITED STATES NATIONAL MUSEUM. 



694. Tellina, species? 



695. Tellina, species? 



696. Metis orbicularis Sowerby. 



697. Macoma littoralis Krauss. 



698. Macoma africana Sowerby. 



699. Semele capensis Smith. 



700. Abra africana Bartsch. 



701. Theora alfredensis Bartsch. 



702. Gastrana abildgaardiana Spengler. 



703. Psammobia burnupi Sowerby. 



704. Psammobia, species? 



705. Psammotellina capensis Sowerby. 



706. Donax serra Chemnitz. 



707. Donax bertini Pilsbry. 



708. Donax sordidus Hanley. 



709. Donax simplex Sowerby. 



710. Donax burnupi Sowerby. 



711. Solen alfredcnsis Bartsch. 



712. Solen capensis Fischer. 



713. Schizodesma spengleri Linnaeus. 



714. Eastonia africana Bartsch. 



715. Mactra adansoni Philippi. 



716. Mactra alfredensis Bartsch. 



717. Lutraria capensis Deshayes. 



718. Saxicava arenacea Smith. 



719. Saxicava lirata Smith. 



720. Gastrochaena, species? 



721. Pholas alfredensis Bartsch. 



