500 Dr. G. E. Dobson on a new Species o/" Vesperugo. 



8. Velutina Icevigata, Pennant. Hah. Hope Island. 



9. Natica, sp. ? Hah. Lomme Bay {fide A. E. E.). 



10. Trochus umhilicalis, Broderip and Sowerby. Hah. Hinlopen 

 Straits. 



11. T.lielicinus, Fabrieius. Hah. Fair Haven, "Wide Bay, Hinlopen 



Straits, and near Walden Island. Common. 



12. Puncturella noadiina, L. Hab. Near Foster's Island, Hinlopen 



Straits. 



13. Chiton marmoreus, Fab. Hah. Wide Bay and Hinlopen Straits. 



14. C. alhus, L. Hah. Hinlopen Straits. 



Class CONOHIFERA. 



15. Saxicava rugosa, L. Hah. From Green Harbour to Hinlopen 



Straits. Common. 



16. My a truncata, L. Hab. The fiords and bays of the western 



coast. 



17. Astarte crenata, Gray. Hah. Hinlopen Straits, 



18. A. jndcJieJIa, Jonas? (I have not Jonas or Reeves's ' Belcher' to 



refer to. — J. G. J.) Hab. Hinlopen Straits. 



19. A. sidcata, Da Costa. Hah. Hinlopen Straits. 



20. Cardium grcenlandicum, Ch. Hah. Lomme Bay. 



21. Leda 2>^'>"nula, Miill. Hab. Trenrenberg Bay. 



22. ModioJaria nigra, Gray. Hah. Treureuberg Bay. 



23. M. discors, Linn. Hah. Fair Haven. 



24. Pecten islandicus, Ch. Hab. Wide Bay, Treurenberg Bay, and 



Hinlopen Straits. 



Class Brachiopoda. 



25. RhyncTionella psittacea, Chemnitz. Hah. Lomme Bay and near 



Carl Island. 



LI. — Description of a new Species o/ Vesperugo from Zanzibar. 

 Bj a. E. Dobson, M.A., M.B., F.L.S., &c. 



Vesperugo ( Vesperus) grandidieri^ n. sp. 



Head, ears, and tragus very similar to those of Vesperugo 

 ahramus.^ Temm. Ears short, rounded off above ; outer mar- 

 gin of the ear-conch straight or faintly concave in upper two 

 thirds, emarginate opposite the base of the tragus, terminating 

 in a small rounded lobe midway between the base of the tragus 

 and the angle of the mouth : crown of the head scarcely ele- 

 vated above the face-line ; nasal apertures separated widely, 

 opening forwards, their margins not projecting. 



Wing-membrane from the base of the toes ; postcalcaneal 

 lobe very shallow ; half the last caudal vertebra free. 



