54 



anfractibus quatuor, ultimo maximo, ventricoso, apertura ob- 

 long4, amp]^, intus alba ; labio externo intiis albo : labio in- 

 terne, plica mediana valida, postica obsoletiore : long. 0*9, lat. 

 0.6, poll. Conch. Illustr. f. 4. 

 Hab. ad ripas fluviorura ; [Maule.) 

 13. Chilina ovalis. Tesla ovato-oblonga, spi r a subacuminata, anfrac- 

 tibus quatuor ad quinque, ssbventricosis, postice rotundato- 

 subangulatis ; apertura mediocre, spira duplo longiore ; labio 

 columellari antice latiusculo, albo, plica columellari mediocre : 

 long. 0-6, lat. 0-37, poll. Conch. Illustr. f. 6. 

 Hab. ad Chonos, (Peninsula de tres Montes.) 

 Note. — The Chilina appear to form a genus intermediate in character 

 between Auricula and Lymna^se : they are all more or less distinctly 

 coloured with four transverse interrupted dark brown bands, and 

 these bands are sometimes united by intermediate undulating lines 

 of the same colour. 



I have never seen the species described by D'Orbigriy under the 

 name of Lyninaeus bulloides ; it may possibly be the same with 

 some one of the above, but I cannot identify it by his description. 



