40 



CONCHOLOGIA rNTDTCA. 



2, 3. S. Cingalensis, Benson, An. Nat. Hist. 1853 

 (ser. 2, vol. 12), p. 91.— Pfeif. Mon. Helic. vol. 4, 

 p. 333. 



Ceylon. 



5,.6. S. Peroteti, Petit, Revue Zool. Cuv. 1841, 

 p. 100 (as Helix).— Pfeif. Mon. Helic. vol. 3, p. 288, 

 Kust. ed. Chemn. pi. 143, f. 29, 30, 31. 

 Nilgherries. 



7. S. solidula, Stoliczka, J. Asi. Soc. Beng. 1871, 

 vol. 40, pt. 2, p. 166, pi. 7, f 10. 



Near Moulmein. 



8, 9, 10. S. exacuta, Gould, Proc. Host. vol. 6 

 (1856): Otia Conch, p. 220.— Pfeif Mai. Bliit. 

 1856, (vol. 3) p. 258 : Mon. Helic. vol. 4, p. 331. 



Mergui, Birmali. I'tCVirvj. 

 The abrupt increase of the antepenult whorl, and the 

 smoothness of the base towards the mouth, easily dis- 

 tinguish the species from S. Sankeyi. The ribs, 

 moreover, are coarser, and a second, though minute 

 parietal lamella, surmounts the principal one. 



PLATE XCIX. 



PLANORBIS. 



See previous plates, xxxix, xl. 



1, 4. P. compressus, Hutton, J. Asi. Soc. Beng. 

 vol. 3, p. 91 (No. 3), 93.— Bens. J. Asi. Soc. Beng. 

 vol. 5, p. 743. — Martens, Malak. Bliit. vol. 14, 

 p. 213. 



Ganges, &c. 

 The P. Tondanensis of Mousson is now regarded by 

 that writer as a synonym. 



2, 3. P. rottda, Benson, An. Nat. Hist. 1850, ser. 2, 

 vol. o, p. 351. 



Near Moradabad. 



5, 6, 7. P. hyptiocyclos, Benson, An. Nat. Hist. 

 1863, ser. 3, vol. 11, p. 89, and Pfeif Mon. Helic. 

 vol. 5, p. 117 (as Helix). 

 Fort M'Donald, Ceylon. 

 Despite of its supposed habitat, there can be no 

 doubt as to the generic allocation. We have figured 

 Benson's own examples. 



8, 9, 10. P. convexiusculus, Hutton, J. Asi. Soc. 

 Beng. vol. 18, pt. 2, (1849), p. 657. 

 Affsrhanistan. 



PLATE C. 

 PUPA (including ENTfEA). 



1. P. (En.) Pirreei, Pfeiffer, Proc. Zool. Soc. 1854, 

 p. 295 (as Pupa) : Mon. Helic. vol. 4, p. 341 and 

 Novit. Conch, vol. 1, p. 199, pi. 32, f. 12, 13, 14 

 (as Ennea). 



Khoondah Mountains, near Calicut. 



2. P. (En.) Blanfordi, Godwin-Austen, Proc. Zool. 

 Soc. 1872. 



,Sba.oi ffii fe /i*/<C ji-viU ■ 



3. P. (En.) vara, Benson, An. Nat. Hist. 1859 (ser. 3, 

 vol. 3'), p. 188 (as Pupa, sect. Ennea). — Pfeif. Mon. 

 Helic. vol. 5, p. 455 (as Ennea). 



■■f.[^ Nan«lai, Khasi Hills. 



4. P. (En.) Ceylanica, Pfeiffor, Proc. Zool. Soc. 

 1855, p. 9 (as Pupa, sec. Ennea). — Ennea C. Pfeif. 

 Mai. Blat. vol. 2 (1855) p. 63.— Novit. Conch. 

 vol. 1, pi. 32, f 18, 19,20; Mon. Helic. vol. 4, 

 p. 341. 



Ceylon. 



5. P. (En.) fartoides, Theobald, J. Asi. Soc. Beng. 

 vol. 39, pt. 2 (1870), p. 400 (as Pupa). 



Shan Provinces. 



6. P. (En.) bicolor, Hutton, J. Asi. Soc. Beng. 1834, 

 vol. 3), p. 86, 93 (as Pupa).— Pfeif. Mon. Helic. 

 vol. 2, p. 353, and Kust. ed. Chemn. Pupa, pi. 13, 

 f. 9, 10 (as Pupa).— P. mellita, Gould, Proc. Bost. 

 1846, vol. 2, p. 99.— Pfeif Mon. Hel. vol. 3, p. 545. 



chlfift . ^lirzapore, &c. ; Tavoy, &c. : Ceylon. 



For further references, see Pfeiffer, Mon. Helic. 

 vol. 6, p. 342. 



7. P. bathyodon, Benson, An. Nat. Hist. 1863 (ser. 3, 

 vol 11), p. 426.— Pfeif Mon. Helic. vol. 6, p. 326. 



Nerbudda. 



8. P.'plieidens, Benson, An. Nat. Hist. ser. 2, vol. 4 

 (1849, Aug.).— Pfeif Mon. Helic. vol. 3, p. 353 : 

 Kust. ed. Chemn. Pupa, pi. 17, f. 23, 24. 

 VJ^Himalayah. W K^mlvX xWUU .V*>i- - 



9. P. salwiniana, Theobald, J. Asi. Soc. Beng. 1870 

 (vol. 39, pt. 2), p. 400. 



Shan States. 

 Our figure is unsatisfactory : the body is usually 

 broader, and the mouth more oblique. The internal 

 lamelljE cannot, of course, be represented on so small 

 a scale : they average with the teeth and denticles 

 about nine in number. 



10. P. lapidaria, Hutton, J. Asi. Soc Beng. 1849, 

 vol. 18, pt. 2, p. 652.— Pfeif. Mon. Kelic. vol.4, p.672. 

 Affffhanistan. 



