THE NAUTILUS. 139 



good latinist he naturally would not. His genus-name was 

 Brazilia. And so in his judgment and on the face of Mr. 

 Greger's impeachment, Brasilica had a right to live. Alas! 

 neither did I use the term Brasilica, hut Brasilia; and here I 

 am, mutatis mutandis, just as bad a trespasser on Dr. Buckman's 

 preserve as if Mr. Greger's commentary had been right. Who 

 is to decide in this very delicate point on nomenclatorial ethics, 

 whether upon an indictment false and disproved, I can be con- 

 victed and fined. Perhaps it may be seemly for me to intimate 

 that it is polite, when practicable, to permit an author to him- 

 self correct his errors when they are shown to him. If he will 

 not, then he is beyond grace. 



Doctor Dall, in his great wisdom, disposes of the matter thus: 

 (Letter of February 21, 1921.) 



"There is no Brasilica Clarke. Ergo, Brasilica Greger = 0. 

 Chapadella Greger = Brasilica Greger = 0." 



In the presence of this formula I propose to rechristen this 

 brachiopod genus with the name Brasilina. JOHN M. CLARKE. 



LIGUUS AT MARCO, FLORIDA. Marco, as you know, is a set- 

 tlement at the north end of Key Marco, or Marco Island. 



When we were collecting Liguus in 1904-6-7, we found none 

 at Marco, and the inhabitants knew of none there then, though 

 the tree snails were remembered as having been at Marco some 

 years before. Also, a man told us he had in the past found 

 "blue snails" near Marco and had been in the habit of ship- 

 ping them to a curio dealer in Key West. He gave me the 

 dealer's name and address. 



We carefully examined the trees where the man reported the 

 discovery of the blue Liguus but we found no snails of any kind 

 there. Now (January, 1921) Albert Addison tells us that his 

 son Chester, some weeks ago, saw snails having blue stripes on 

 them in a thicket in sight of the houses of Marco, the same 

 place I think where the man years before spoke of having found 

 blue snails. 



We searched carefully this thicket, which now is small, and 

 found some Liguus there, which I am sending you by insured 

 parcels post [Liguus fasciatus roseatus} but none of the blue 

 variety, as you will see. 



