SUPPLEMENT. 161 



(R. T. Lowe and others, as Pupa microspora). Yar. minor. 

 S. Abyssinia (Henglin, /. E. v. Martens). 



P. 270. V. MINTJTISSIMA. E. Sicily (Calcara and others) ; 

 Dalmatia (Brusina). I regard Pupa costulata of Nilsson as 

 the toothed variety ; it has also a thicker lip. Yar. minor. 

 Madeira (Watson, as Pupa linearis of Lowe). 



P. 273. BALIA PERVERSA. Perthshire specimens, which 

 Dr. Buchanan White kindly sent me, are rather larger than 

 English. He is of opinion that Scotch land shells are on an 

 average larger than English. Yiviparous, Rich. 



P. 278. CLAUSILIA. According to Middendorff and Gerst- 

 feldt no species has been found in Siberia. 



P. 280. C. RUGOSA. E. Dalmatia (Brusina). Turbo bi- 

 dentatus, Strom. The young is Balia Sarsii of Bourguignat. 

 Yar. dubia. 



BODY greyish-brown with a slight tinge of violet, covered 

 with irregularly shaped tubercles, which are arranged in rows 

 on the back and sides : head snout-like : tentacles, upper pair 

 light grey, tuberculous, club-shaped and arched, with oval 

 smooth and brownish tips ; lower pair very short and conical, 

 dark brown or sootcolour : eyes small, black : foot long and 

 slender ; sole light grey. 



Near Ingleborough, Yorkshire ; not with the typical form 

 (Dixon). Its foreign distribution is coextensive with that of 

 the latter. Perhaps they may be as distinct as Bulimus mon- 

 tanus and B. obscurus ; but C. rugosa and C. dubia are con- 

 nected through several other forms, especially Ziegler's variety 

 compar of C. dubia. Schmidt has endeavoured (I think, un- 

 successfully) to separate C. nigricans from C. rugosa his re- 

 mark as to the variety anceps of C. rugosa seems to " put him 

 out of court." Yiviparous, Rich. 



P. 280. C. PARVULA. Kinver, near Stourbridge; several 

 specimens (Grant Allen). E. Denmark (Morch). 



P. 281. C. ROLPHII. E. Widely distributed over the 

 Continent, from Norway to the Abruzzi. Yiviparous, Rich. 



P. 283. C. BIPLICATA. E. Cambridge (Dewick). E. St. 

 Petersburg (Gerstfeldt) ; Norway (Sars); Sweden (Wester- 

 lund); Denmark (Morch and J. G. J.). Yiviparous, Rich. 



P. 284. C. LAMINATA. Perth (Buchanan White). 



