DALL : MOLLUSCA AND BRACHIOPODA. 435 



Tliis has a general similarity to M. bicarinata Smith and M. paucistriata Dall, 

 of the Indiau Ocean and Atlantic, but differs in details of sculpture. It is named 

 in honor of the late commander of the " Albatross," who was uafortunately lost 

 overboard during heavy weather, near the Hawaiian Islands. 



Notes on the Littoral Species. 



Since the distribution of species upon islands is a matter of interest I add the 

 following lists of littoral or beach shells collected by the " Albatross," party during 

 visits to the islands in the Bay of Panama, to Malpelo and Cocos Islands, Manga 

 Reva in the Paumotu group, and especially to Easter Island, which, from its iso- 

 lated position as the most eastern outpost of the Polynesian archipelago, is seldom 

 visited, and I believe has never been visited with the purpose of studying the 

 niolluscau fauna. 



I may add that some slugs collected on the shore at Easter Island and sub- 

 mitted to Dr. H. A. Pilsbry were reported by him to be the ordinary Euroi)eau spe- 

 cies, Limax gagates, probably introduced in the packing about freight consigned to 

 local traders. 



Shore Shells from Panama Bat. 



Conus nux Broderip. Perico Id. 



Drillia aterrinia C. B. Adams. Perico Id. 



Mangilia litieolata Reeve. Taboguilla Id. 



Mitra gigantea Sowerby. 



Mitra tristis Broderip. 



Mitra lens Wood. 



Leucozonia cingulata Lamarck. 



Latirus ceratus Wood. Taboguilla Id. 



Alectrion versicolor C. B. Adams. Taboguilla Id. 



Alectrion scabriusculus Powis. 



Anachis boivini Kiener. Perico Id. 



Anachis varia Sowerby. Perico Id. 



Anachis sulcosa Sowerby. Taboguilla Id. 



Columbella fuscata Sowerby. Taboguilla Id. 



ColuniboUa major Sowcrbj. Taboguilla Id. 



Nitidella cribrarin Lamarck. Taboguilla Id. Perico Id. 



Engina carbonaria Reeve. Taboguilla Id. Perico Id. 



Engina ferruginea Reeve. 



Cantliarus gemmatus Reeve. Taboguilla Id. 



Cantliarus sanguinolontus Duclos. Taboguilla Id. 



Murex luiinilis Broderip. Perico Id. 



Muricidca dubia Swaiiison. 'J'aboguilla Id. 



Muricidea squainulata Carpenter. 



Thais meloncs Huclos. Taboguilla Id. 



Acanthina brevidentata Gray. Taboguilla Id. 



