Pterocyclos pictus Pfr. in^Chemn. ed. II. Cyclosl. p. 194. 



t. 24. f. 21—25. 

 Steganotoma picta Trosch. in Wieg;m. Arch. 1837. I. p, 



165. t. 3. f. 12. 13. 



- pictum Phil 1844. Abbild. I. 5. p. 105. 1. 



1. (Cyclost.) f. 5, 

 Cyclostoma Suw. Conch. Man. f. 531 ? 



— pictum Petit in Journ. de Conch. I. j). 43 

 ß. Minor: 



Pterocyclos rupestris var. Chemn. ed. II. t. 31. f. 9 — 11. 



3. Pt. Cumingi Pfr. 

 T. latissime umbilicata, depressa , solida, striatula, 

 nitida, fulvo-lutea, strigis castaneis f'ulguratis, bifasciatim 

 latioribus et saturatioribus picta; spira plana; anfr. 5 

 convexi, ultimus teres, antice juxta penultimum in pro- 

 minentiam elongatam , fornicatani , sulco circumscriptain 

 tumefactus; apertura parum obliqua , subcircularis, intus 

 margaritacea; perist. simplex, album, incrassatum, reflexum, 

 superne sulco triangulari subinterruptum, in linguam in- 

 flexain, tenuiusculam productum. — Operculum? — Diam. 

 maj. 32, min. 28, alt. 6 null. (Mus. Cuming.) 

 Pterocyclos Cumingi Pfr. in Chemn. ed. II. Cyclost. t. 



31. f. 6—8. (ined.) 

 Habitat in insula Ceylon. 



4. Pt. parvus Pearson. 



T. late umbilicata, depressa, solidula, striatula, corneo- 

 lutescensj fascia ramosa castanea ad peripheriam strigisque 

 angulatis superne variegata; spira subplana, medio vix 

 prominula; anfr. 4'/2 convexiusculi, ullimus teres, antice 

 descendeus, basi pallidior; apertura obliqua, circularis; 

 perist. duplex, internum breviler porrectum, superne sinu 

 circulari emarginatum , exlernum latiusculum, rellexum, 

 album, supra sinum angulalim recedens, ascendens, cu- 



