53 



poll. Conch. Illustr. f. 10. 



Hab. in flumine Baldiviae, prop^ originem. 



8. Chilina robustior. Testa ovali, spira breviuscul^, anfractibus 



quinque tumidiusculis, ultimo raagno ; apertura magna, labio 

 externo intus subincrassato : long, {apice eroso) 1*1, lat. 0*7. 

 poll. Conch. Illustr. f. 1. 

 Hab. ad ripas submaritimis fluminis Baldiviic. 



9. Chilina Parchappii. Testa oblongo-ovata, spira acuminata, an- 



fractibus quinque ad sex subconvexis, sutura distinct^, ; apertural 

 oblonga, albida ; columella incrassata, plica mediana, incon- 

 spicua: long. 1*0, lat. 0*45, poll. Conch. Illustr. f. 8. 



Syn. Lymnaeus Parchappii, D'0r6t^ny, Synopsis Moll. Terr, 

 et Fluv. p. 25, No. 4. 



Hab. Pampas (Republica Argentina.) 



Obs. Specimens of this species were sent to me by 

 D'Orbigny himself, they must therefore be authentic : they do 

 not however accord very exactly whith his description, par- 

 ticularly in relation to the expression ^* umhilico suhaperto ;^^ 

 I can scarcely perceive anything deserving the name of umbi- 

 licus. 



10. Chilina Tehuelcha. Testa ovata, spir^ brevi, obtusiuscula, anfracti- 



bus quinque, subinflatis, postice rotundato-subangulatis ; aper- 

 tura magn4, intus alba ; labio columellari lato, plied mediana 

 valida, antica fere obsoleta : long. I'l, lat. 0"7, poll. Conch- 

 Illustr. f. 9. 



Hab. Patagonia, D'Orb. 



Syn. Dombeia Tehuelcha, D'Orb. MS. 



11. Chilina Puelcha. Testa ovata, spir& brevi, obtusiuscula, anfrac- 



tibus quatuor, rotundatis ; aperturd oblonga, spira duplo lon- 

 giore: long. 0-7, lat. 0.4, poll. Conch. Illustr. f. 13. 



Hab. Patagonia, D'Orb. (Rio Negro, Keni.) 



Syn. Dombeia Puelcha, D. Orb. MS. 



12. Chilina gibbosa. Testa ovali, crassiuscula ; spira brevissim4, 



