(55: EM Lapedition. 
MOLLUSCA. PL. 18. 
ay 
yy 
Trochus ater ` Lesson 2/6 Trechus ` elsus å. Trochus  rotellunus = >G. 
niger Gray . ALY ACINOSUS = EE ed 4 
Araucanus  DOrb. 218 Ba EE 7 777: 1477 A 2 Alrepurpureus G: 
nuestus Jonas. 219 SPUVCUS 
instrictus C 
tantillus 6. 220 
24 CU CUMSULUS Solarium  egenum G. 
221 Nas bicrenatus C. 
Drawn by J.Drayton. 
W. G. Newton Se. 
