PLATE XXIV. 



Calliostoma {Dcntistyla) sericifilum Dall ; 4.2. Page 373. 



Calliostoma {Dcntistyla) sericifilum Dall ; base, 4.5. Page 373. 



Callogaza Watsoni Dall, base of young shell ; 6.0. Page 354. 



Callogaza Watsoni Dall ; 6.0. Page 354. 



Calliostoina apicinum Dall ; alt. 7.5. Page 366. 



Calliostoma apicinum Dall ; base, diam. 7.0. Page 366. 



Calliostoma yucatecanum Dall ; 7.0. Page 370. 



Calliostoma yucatecanum Dall ; base, 7.0. Page 370. 



Liotia briareus Dall ; alt. 7.5. Page 388. 



Liotia briareus Dall ; base, 9.0. Page 388. 



Calliostoma roseolum Dall ; alt. 9. 5. Page 366. 



Calliostoma roseolum Dall ; base, 7.0. Page 366. 



Leptothyra Philipiana Dall ; alt. 3.5. Page 353. 



Le2)tothyra Philipiana Dall ; base, diam. 4.0. Page 353. This 

 species is named in honor of Dr. Philip P. Carpenter, another 

 species having received the name of Carpenteri since this paper 

 went to press. 



