laliof, ulliiiio vi\ 1 l ;iiil;ii-^I iof ; a|)(Mtiiia ohliciiic, 

 hoiizonlali lunatis, iiiai-i;-inc iiifcriore levilcr ai- 

 ciialo, qiiain supeiior imillo l()iiL,noie ; — tliaiii., 

 3 1/2; ail., 1 1/2 niillim. [Algcria, in alliiv. Iliiv. 

 llarrach, Joly ex.). 



Hijal. castisbiv \W-^) [)i*oxiiiia clillcrl SL-uI|)Uira, li- 

 ncis spiralibus latcM'is iul'ei'ioiis (si ilhc non acci- 

 (Icntalcs sinl!) et relalioiie anlVacluuin. 



4. UVAI.IMA OXVSTO.M\, WaMevluuL 



Tesla pnnctifornie pcilbrala (vel forte reclius 

 iinpi'cssione pei'angaisla paiinn profunda peifoia- 

 lioni simili), tlcprcssa, convexiiisciila, snb lente 

 reiJiilai'iler sliiatula; anfi*. 5, lente re<iiilarilei' 

 acereseentes ; iillinius i-otiindatus, antej)cnullinio 

 fcre duplo lalior, snbtas ponc loeiini unibiliei 

 concaviiiseulns ; a|)ei'lura lioi'izontalis, obloni^o- 

 ovalis, pai'iete valde excisa, inargine superiofe 

 (piain basalis leviler aicuatiis ("ère duplo bieviore, 

 iiKirgiiic roliiinclhtri brcvissinto cin)i hasali angii- 

 I:iin prrdcutiiDi, dcprcssiuii retrorsiiin super pcr- 

 fordtionein vcrsiini forni(inlc\ — diain., \ J/2; ail., 

 1 1/2 mi 11 i m. 



Ibee s[)eeies [vili-cdnun seelionis in Algeiia ad 

 IMiilippeville babilal iJoly ex.). 



(ienii-; III'ILIX, Liiiitc. 

 :;. IIKl l\ l'ONSOMtVI. Wi^tvilnnl. 

 Tesla angusle |)ei l'orala, i^lobosa, lenuissima cl 



