50 
PTEROCYCLOS §. 3., 
86 15. Pt. ? gpii'&celfqam A. Adams et Keeve. f 
T. suborbicularis , planorbula; spira depressa, pallida; 
anfr. 4 rotundati, transversim striati, sutura distincta, ultimus 
dorso inflatus, demum coarctatus . et quasi strangulatus, varice 
fornicato prope aperturam ; apertura circularis ; peritrema duplex, 
interne postice emarginatum, externe reflexum, postice in 
canalem desinens; anfr. ultimus spiraculum tubulosum prope 
aperturam gerens; umbilicus patulus, anfractibus intus con- 
spicuis. — Operc. circulare, spirale, intus corneum, concavum, 
extus testaceum, margine sulcatum. (Ad. et Rv.) — Diam. 
maj. 10, alt. 5 mill. (Ex ic.) 
Cyclostoma spiracellum A. Ad. et Reeve Voy. Samarang. Moll. p. 56. 
t. 14. f. 1. 
Flerocyclos? spiracellum Pfr. Consp. N. 59. 
Habitat in insula Borneo. 
Obs. 1. „Pertinet ad divisionem Pterocyclorum.“ 
Obs. 2. Nonne potius Cycloto rostcllato Pfr. affinior, vel ejusdem 
speciei specimen? 
87 16. Pt.? Meiliatus Mouss©n.f 
T. orbicularis , supra planulata , infra late umbilicata, 
tenuissima, submembranacea, striis transversis acutis et pilosis 
ornata, flavescens, flammulis fulvis picta ; spira depressa ; sutura 
valde profunda; anfr. 4 J / 2 teretes, obscure biangulati, spiraliter 
ciliis incurvatis nigris biseriatim insigne ornati, ultimus deflectus ; 
apertura obliqua , circularis (marginibus deflectis) , angulo 
supero lamina bicanaliculata insolite predito. — Operc.? — 
Alt. 7, diam. maj. 14, 2, min. 11, 5 mill. — Rat. infr. ~ 
1:2. (M.) 
Pterocyclos biciliatus 3Iouss. Jav. Moll. p. 49. t. 20. f. 9. 
— — Pfr. Consp. N. 57. 
Cyclostoma bicilialum Petit in Journ. Conch. 1850. I. p. 43. 
Habitat in Birmah, unde in folio Nepenthis ad Javam speci- 
men unicum incompletum allatum esse traditur. (Mousson.) 
Obs. Haec species imperfecte cognita Cycloto Tayloriano Pfr., (cui 
synonymon addendum: C. Charbonnieri Recluz in Journ. Conch. 1851. 
II. p. 214. t 5. f. 12. 13) plurium speciminum operculo praeditorum ob- 
servatione nunc bene stabilito , peraffinis videtur, nisi eadem? 
