THE SUBGENUS CYLINDER. 81 



viii. corhula (Sowb.) . 0£ very effuse growth, ventricosej 

 confusedly marked. 



ix. euetrios (Melvill & Sowb.). Similar to corbula, but 

 of different shape, and the markings more regular. 

 Unique in my collection. Locality unknown. 



X. Z)a/^z (Stearns). Of lighter build. Spire convex; mouth 

 roseate. California. Unknown in European col- 

 lections as yet. 



All these, except tigrinus, are called actual species by 

 most authors ; but it seems best to merge them as 

 varieties. 



b. abbates. 



The texture and markings finer, and spire, as a rule, 

 more depressed than in the first group. 



C abbas (Brug.) . Very beautifully and intricately marked 

 with smaller reticulations ; very distinct from any 

 other species. 



C. panniculus (Lam.). Perhaps a form of abbas. 



Var. textilinus (Kiener) . Of more pyriform shape, but 

 similar markings. I possess Kiener's original type. 



C archiepiscopus (Hwass). Very richly and minutely 

 ornamented. 

 C. panniculus seems to connect this and abbas : it is, in 

 fact, with some hesitation I keep them separate. 



C. Victoria (Eeeve) . Of much lighter growth than any of 

 the preceding ; the greyish flames peculiar. From 

 Australia. It is a most distinct species. 

 Var. complanatus (Sowb.). Only a more ventricose, 

 squarely based variety of C. Victorim. 



c. pyramidalia. 

 It is in this group that the Textile group reaches its 



SER. III. VOL. X. G 



