SHELLS OF SOUTH AMERICA. 25 
226. CHILINA FLUMINEA, d’Orb. Voy. v. 337. t. 43. 
a £9. 20. B.M. 
Voluta fluminea et Vol. fluvialis, Maton. 
Limneus flumineus, d’ Orb. 
Patagonia. 
227. CuHiutina ParcuHaprii, d’Orb. Voy. v. 338. t. 43. 
f. 4, 5. B.M. 
Limneus Parchappu, d’Orb. 
Argentine Republic; Arroya Salado; Southern Pampas. 
This genus may be divided into three groups :—I. Inner lip 
thin; pillar-fold imdistinct: C. Parchappu. II. Inner lip mo- 
derate ; pillar-fold distinct: C. Dombeiana, C. fluctuosa, C. bul- 
loides, C. Tehuelcha, C. Puelcha. 11. Inner lip thickened; 
pillar with three or four large plaits: C. fluminea. 
228. Limnzus VIATOR, d’Orb. Voy. v. 340. t.43. f.1-3. B.M. 
Patagonia. 
229. Puysa RIVALIS, d’Orb. Voy. v. 341. B.M. 
Var. major, Physa Peruviana, Gray. B.M. 
Brazils. 
230. PLANORBIS FERRUGINEUS, Spi, d’Orb. Voy. v. 
344. B.M. 
Planorbis olivaceus, Spiz. 
Brazils. 
231. PLANoRBIS PeRuvIANUS, Brod., d’Orb. Voy. v. 
3465. B.M. 
Peru. 
232. PLANORBIS MONTANUS, d’Orb. Voy. v. 345. t. 45. 
f. 5-8. B.M. 
Lake of Titicaca. 
233. PLANORBIS ANDECOLUS, d’Orb. Voy. v. 346. t. 44. 
f. 1-4. B.M. 
Lake of Titicaca. 
It is probably only a variety of P. montanus. 
234. PLANORBIS TENAGOPHILUS, d@’Orb. Voy. v. 347. 
t. 44. f. 9-12. B.M. 
Argentine Republic. 
