PLATE XXIV. 



Calliostoma (Dentistyla) sericifilum Dall ; 4.2. Page 373. 



Calliostoma (Dentistyla) 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. 



Calliostoma apicinum Dall ; alt. 7.5. Page 366. 



Calliostoma apicinum Dall ; base, diam. 7-0. Page 366. 



Calliostoma yucatccanum 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. 



Lejitothyra 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 Carpentcri since this paper 

 went to press. 



