PLATE XXIV. 



no. 



1. SCHIZOPORELLA LiNEARis, p. 247; var. with a single 



avicularium borne on the side of a short rostrum. 

 See Plate XXXVIII. 



2. SCHIZOPORELLA UMBONATA, p. 264. After Busk. 



3. CRIBRILINA PUNCTATA, var., p. 190. See Plate XXVI. 



4. LEPRALIA PALLASIANA, p. 297 ; var. with much pro- 



duced peristome. See Plate XXXIII. 



5. STEGANOPORELLA SMITTII, p. 178 ; with avicularia. 



6. - , showing the oo3cium with the lid thrown 



back. 



7. LEPRALIA EDAX, p. 311. 



7 a. - , the large, pointed avicularia. After 



Smitt. 



8. , nat. size, incrusting a univalve shell. 



