— l'iG — 

 s'accentue surtout vers les deux tiers inférieures. 



TIPHOBIA JOUBERTI 



Testa turl)inata, inferne parum rostrata, tenella, 

 subtranslucida, parum nitida, superne albescente, 

 obsolète striatula quasi polita et fere lœvigata, infra 

 carinam spinosampallidc luteola ac transverse striata 

 (striai undulataî, ad aperturam passim validiores, 

 quasi liratiformes) et costulis spiralibus notabiliter 

 inter se distantibus eleganter decussata; — spira 

 scalariformi, gradata ac sat producto-acuminata (apex 

 minutus, acutus, nitidissimus et pcrhevis) ; — an- 

 fractibus 7 rcgulariter crescentibus, acute carinatis 

 (carina supera, alba, liruto-proniinens, 20-21 spinis 

 [spiuic tubulata', graciles ac irregulariter inter se 

 distantes] ad initium minutissimis, dcin magis 

 magisque elongatis [long. niax. 5-G millini.] ele- 

 gantissinic cchinata), supra circa suturam complana- 

 tis, infra carinam bene convexis ; — ultinio maximo, 

 2/3 altitudinis leviter superante, superne planato, 

 infra carinam bene convexo, sat turgido ac ad basin 

 acuminato et brcviter rostrato; — apertura vcrticali, 

 lunata, irregulariter pyritbrmi, superne recta, externe 

 bene convexa, interne ad columcllam recta, tandem 

 inferne coarclatact inrostrumbreviter canaliculatum 

 terminata; columella recte acuminata; margine ex- 

 terno antrorsum notabiliter arcuato-rotundato ; callo 

 dislincto, albescente, super coluinellam rellcxo; — 



