THE NAUTILUS. 137 



vation, which although much smaller were finely colored, more like 

 the original type, or like Mr. Gabb's stearnsiana." 



In his Manual of American Land Shells, p. 150, Mr. W. G. Bin- 

 ney credits H. kelletti Fbs. to San Diego, Santa Catalina Island, 

 San Nicolas Island in the California region ; "also 12 miles east of 

 San Diego at 2000 feet elevation," and remarks, " The specimen 

 figured is from Catalina Island. I am positive it is correctly referred 

 to kelletti." " Forbes' original figure is copied in Terr. Moll., V." 

 On turning to Terr. Moll, v., I find the figure identical with the one 

 in his Manual, on page 149, which is undoubtedly the Catalina 

 Island form. I may add here that I found no specimens of H. kel- 

 letti on San Nicolas Island, but my time and operations were lim- 

 ited while there to the south end of that island. 



In a paper published in the Proceedings of the Academy Nat. Sci- 

 ences of Philadelphia, 1900, entitled, "Additions to the Insular 

 Land-Shell Faunas of the Pacific Coast," etc. Dr. Dall writes of 

 H. kelletti, " the typical E. kelletti is that found in the vicinity of San 

 Diego. It has six whorls and they are well rounded. It differs 

 from the Catalina Island form, in its less flattened and more inflated 

 whorls, more dome-like spire, smaller size and browner aspect, the 

 contrast between the upper and lower sides of the last whorl being 

 less marked. Specimens from Coronado Islands are like those from 

 San Diego. The National Museum has this species only from the 

 above-mentioned three localities authentically. " Santa Barbara," 

 frequently mentioned as a locality, should read " Santa Barbara 

 Islands," as it is improbable that the shell occurs at the town of 

 Santa Barbara on the mainland. A lot in the National Museum are 

 labelled, " Oregon City," Shumard, which is, of course, an error. 



If the San Diego and Coronada Islands forms are accepted as the 

 typical H. kelletti Fbs., as suggested by Dr. Dall, then H. stearnsiana 

 Gabb. must fall into the synonymy of that species, notwithstanding 

 the former is said to have six, and the latter five whorls ; and then 

 the Catalina Island form would be undescribed or rather unnamed. 

 Some of the Catalina specimens are an exact imitation of San Diego 

 and Coronado Island examples in coloring, as well as in size. H. 

 stearnsiana, at Santo Tomas, and on Todas Santos Islands, lower 

 California, attains a greater size than any specimens of H. kelletti 

 that I have ever seen, and associated with them individuals occur as 

 small as the San Diego or Coronado Island forms. 



