112 THE NAUTILUS. 



Another interesting shell is a specimen of Valuta deshnyesii from 

 Clipperion Island. The vessel which brought it was a small coaster 

 which was sent direct to the uninhabited Clipperton Island from 

 San Diego for a load of guano, and returned to San Diego without 

 touching at any other point. So Miss Cooke warrantably concludes 

 that the shell could not have been obtained elsewhere; and, as it is a 

 rather dull and battered specimen, was not likely to have been 

 carried there, especially as there is no trade between Clipperton 

 Island and the Australian seas. 



Miss Cooke has Fusinus luteopictus Dall, from the Gulf of Cali- 

 fornia, and Mitra lens from Scammon's Lagoon at the western elbow 

 of the Lower Californian peninsula. 



Several of the collectors have found Pterin sterna on the San 

 Diego breakwater, and Melina chemnitziana at the Coronado islands, 

 southwest of San Diego. 



Mrs. Stephens has received Rangia lecontei Conrad from the 

 locality known as ' Flowing "Wells ' in the Colorado desert. 



Dr. Baker's collection contains (from 40 fathoms off San Clemente 

 island) Lucina edentuloides Verrill, Calliostoma variegatum Carpen- 

 ter, and a Natica not yet identified. 



A NOTE ON ISAPIS OBTUSA CPR. 



BY A. W. HANHAM. 



Among some local species submitted to tTie Rev. G. W. Taylor, of 

 the Marine Biological Station at Departure Bay, Vancouver Island, 

 in June of 1909, was an Isapis which he did not recognize at the 

 time, but all the shells were dead specimens, having been taken 

 under stones, at low tides, inhabited by hermit crabs. Even these 

 had not been abundant, and the small " lot " was the catch of several 

 seasons. The species proves to be Isapis ohtusa Cpr., and it was 

 kindly named for me this fall by Dr. Paul Bartsch, of the United 

 States National Museum. 



It is mentioned in Keep's " West American Shells," as is also 

 Isapis Jenestratus Cpr., but no particular locality is given for either. 

 The latter species is included in the Rev. G. W. Taylor's " Pre- 

 liminary Catalogue of the Marine Mollusca of the Pacific Coast of 

 Canada," but only as a great rarity. Isapis obtusa Cpr. is not 

 mentioned. 



