Daix. — MoUusca and Bracbiopoda. 



PLATE 11. 



Cylichndla {Cylichnium) pizarro Dall ; alt. 9.75 mm. ; p. 243. 

 Cylichnella ( Cylidinium) atahual}M Dall ; alt. 9.0 mm. ; p. 243. 

 Cylichnella (Bullinella) inca Dall; alt. 6.0 mm. ; p. 242. 

 BuUaria (Leucophysema) morgana Dall ; alt. 5.5 mm. ; p. 244. 

 Natica (Cochlis) scethra Dall ; alt. 17.0 mm. ; p. 333. 

 Acteon panamensis Dall; alt. 7.0+ mm.; p. 236. 

 Polinices (Euspira) Crawford ianiis Dall; alt. 15 mm.; p. 335. 

 Erato oUgostata Dall ; alt. 3.2 mm. ; p. 324. 

 Volutopsius? amahilis Dall; alt. 10.5 mm. ; p. 305. 

 Cancellaria (Mericaf) microsoma Dall; alt. 3.5 mm.; p. 296. 

 Alectrion (Hima) catnllus Dall ; alt. 14 mm. ; p. 307. 

 Alectrion (Tritia) exsarcus Dall ; alt. 9.0 mm. ; p. 308. 

 Columbella {Anachis) fusidens Dall ; alt. 15.0 mm. ; p. 309. 

 Turriiella manana Dall ; alt. 25.0 mm. ; p. 327. 



Figure 8 was drawn by the late Dr. J. C. !McCoiiuell, the others by Miss Evelyn 

 Mitchell. 



