THE NAUTILUS. 65 



above named, in tlie u^ual procession of synonyms. On the coast of 

 California Ave find three species : C. exogyra Conr., C.pelludda Sliy., 

 and C. spinosa Sby., all of the foregoing having been collected by 

 me personally, without going outside of Uncle Sam's farm. 



Since writing the above, the September Nautilus has come to 

 hand. From page 57 I quote " Family Ungulinidse. Not repre- 

 sented on our shores." If, by " our shores," he means Rhode Island, 

 strictly and literally, he may be right, but if " our shores " means 

 the North American Continent or the coasts of the United States, 

 he is again in error, for the said family includes, among other genera, 

 Cryptodon Turton, Diplodonta of Brown (=3fysia Leach), etc., and 

 some authors include Tellimya in the same family. Several species 

 of Cryptodon inhabit the waters of the Atlantic coast from the Arc- 

 tic Sea to Cape Florida, at various depths from six to nearly one 

 thousand fathoms. Tellimya is represented by three species from 

 the Arctic Sea to Hatteras and one of these, T.elevata Stimpson, has 

 been collected from tivo fathoms depth, coast of Maine. Diplodonta 

 furnishes examples of three or four species on the west coast of N. 

 America, one, perhaps two, of which, have been collected by my own 

 hands. i^e/(«//a, another group of the Ungulinidse, furnishes two or 

 three species on the Pacific side to justify this criticism. Cryptodon 

 (which Mr. Carpenter mentions incidentally in connection with the 

 Lucinid(£) and Tellimya, it may be pleaded, have only quite recently 

 been included in the JJngulinidce ; this can not be said of the groups 

 Dijjlodonta and Felania. 



Further on (page 59) may be seen " Fa»nily Crassatellidce, not 

 represented in North America." Now Dall has described a Cras- 

 mtella, C. floridana, from the Gulf of Mexico west of the Florida 

 coast (30 fms.), and said family is further represented by Eriphyla 

 lunulata Conrad and variety ^jarra C. B. Ad., both of which range 

 from Cape Cod to Barbadoes, in from three to about three hundred 

 fathoms. It may again be pleaded perhaps with reason, that a part 

 of these latter facts have but very recently been made known. 



The occurrence of Crassatella on the West coast of North Amer- 

 ica should have been known to him, for C. gihhosa Sby. appears in 

 Philip Carpenter's Check List of West Coast Shells (Smithsonian 

 Misc. Pub., June, 1860), an easily accessible publication ; as will be 

 seen by the date issued twenty-nine years ago. 



Again, while highly appreciating the convenience and value of 

 authentic local faunal lists, in Mr. Carpenter's, I do not perceive the 



