PTEROCYCLOS §. 2. 
53 
turn, superne vix incisum, externum patens, ad anfractum 
contiguum productum, turn late inflexum, latere dextro angu- 
stius involutum. — Operc.? — Diam. maj. 22, min. 18, alt. 
7V 2 mill. (Coll. Nr. 4.) 
Pterocyclos Wilsoni Pfr. in Proc. Zool. Soc. 1865. p. 831. t. 46. f. 12; 
Malak. Bl. XIII. 1866. p. 44; Novit. conch. III. 
fasc. XXXIII. p. 442. Nr. 587. t. 98. f. 5—7. 
— — Patel Catal. p. 119. 
Habitat in insula Formosa. 
* 
12. Cingalensis Bens. II. 29. III. 42. — H. Nevill Enum. 1871. p. 
5. — Haul. Sf Theob. Conch. Ind. t. 5. — Ceylon. 
13. bifrons Pfr. II. 30. III. 42. — H. Nevill Enum. 1871. p. 5. 
— Ceylon. 
14. bilabiatus Bens. I. 49. II. 30. III. 42. — Cydostoma bilabiatum 
Sow. — Madras. 
15. Albersi Pfr. I. 45. II. 30. III. 42. — Montes Khasia Indiae. 
16. anguliferus (Cyclostoma) Soul. (Coll. 5.) I. 44. II. 30. III. 42. 
— Patel Cat. p. 119. — Cochinchina. 
17. rupestris Bens. (Coll. 6.) I. 46. II. 30. III. 42. — Patel Cat. p. 
119. — Steganotoma picta Trosch rupestris Morch. — Pterocydos 
pictus Trosch. — Cydostoma pictum Petit. — India. 
18. nanus Bens. (Coll. 7.) II. 31. III. 43. — India. 
19. parvus (Spiraculum) Pears. (Coll. 8.) I. 48. II. 31. III. 43. — 
Patel Cat. p. 119. — Montes Khasia Indiae. 
20. pull at us Bens, f II. 31. III. 43. — Birmania. 
21. Cetra Bens, f II. 32. III. 43. — Birmania. 
22. Pt. Feddeni Blanford. f 
„ Testa late umbilicata, convexo-depressa, laevigata, minute 
striata, tenuiuscula, strigis transversis alternantibus zigzagfor- 
mibus albis et castaneis, fasciaque submediana modice lata 
obscuriore ornata; spira fere plana, apice levissime protracto, 
sutura profunda; anfr. 4^, convexi, ultimus rotundatus, versus 
aperturam descendens; apertura circularis, parum obliqua; 
peristoma duplex, limbis sulco levi separatis: internum superne 
excisum, sinum mediocrem formans, externum in alam parvu- 
lam verticalem liberam productum. — Operc. intus concavum, 
centro piano, extus piano -concavum, marginibus anfractuum 
liberis, lamellaribus. — Diam. maj. 11, min. 9, alt. 5 mill.“ 
(B. angl.) 
Pterocyclos Feddeni W. T. Blanf. Contrib. to Ind. Malac. V. 1865. p. 19. 
— • — Haul. Sf Theob. Conch. Ind. t. 5. f. 9. 
Habitat Thayet Myo, Pegu. 
