72 



ol)(ecle umhilicata, conoideo-globosa , soliduia, slriatuln, 

 parum iiitens, virenti-cornea; sj)ira parvula, conoidea, 

 acutiuscula; anfr. 6 convexiusculi, ultimus inflatus, antice 

 subascendens, pone columellam profunde excavatus, cal- 

 losus; apertura subverticalis, angulato-ovalis; columella 

 subverticalis, retrorsum in denlem acutum desinens; perist. 

 incrassatum, album, undique late expansum, rellexiusculum. 

 — Diam. maj. 17 Vj, min. 13, alt. 11 mill. 



75. Cyclost. patera Pfr. (468.) — T. latissime 

 umbilicata, solidula, discoidea, liris latis granulatis, inler- 

 positis linearibus sculpta, epidermide olivaCeo - fusca ob- 

 ducta; spira plana; sutura subcanaliculata; anfr. ^Va pla- 

 nulati, ultimus medio carina filiformi munitus, basi con- 

 vexus, circa umbilicum paleraeformem subangulatus; 

 apertura verticalis, subangulato-rotundata; perist. simplex, 

 rectum, marginibus approximatis. — Diam. mtij. 10, min. 

 8, alt. 272 mill. 



76. C. rostratum Pfr. (399.) — T. perforata, 

 ovalo-turrita, truncata, tenuis, longitudinaliter confertim 

 filoso - plicata (plicis singulis irregulariter positis , validio- 

 ribus, interstitiis subtiliter decussatis), corneo-albida , li- 

 neolis longitudinalibus undulatis fuscis picta; sutura levis, 

 denliculata; anfr. sup. 4Va parum convexi, ultimus antice 

 breviter solutus; apertura verticalis, angulato-ovalis; perist. 

 duplcx: internum continuum, expansiusculum, exlernum 

 dilatatum, juxta anfr. penultimum subexcisum, superne in 

 auriculam recurvatam productum, caeterum rectangule 

 patens. — Long. 18, diam. 8V3 mill. Ap. intus 6 mill. 

 longa, 5 lata. 



77. C. euchilum Pfr. (303.) — T. umbilicata, tur- 

 binato-subglobosa, solidula, oblique confertim slriata, lineis 

 impressis distantioribus obsolete clathratula, parum nitida, 

 albida, violaceo-fusco & fulvo variegata; spira turbinato- 

 elevata, apice aculiuscula; anfr. 5V2 convexi, rapide ac- 

 crescenles, ultimus rotundatus, ad suturam subdepressus. 



