HELIX. 



3» 



Striatam ' parvani £ 7. t. 9. part. II. Conchyf. Argenvilk 

 huic perperam tribuit Ciarifr. Geofroi; ipfe eiiim autor eandem 

 effe ac ftriata magna , quae eft Coch. V. Geofr. pronunciar , ac 

 figura probat, in qua nec labrum , noftrEE j7z«Me//ff propriura, 

 confpicitur. 



In humidis mufcofis frequcns. 



233. HELIX COSTATA. 



Helix tefta fubdeprefla , umbilicata, cinerea; fpi- 

 ris coftatis; apertura circulari; labro albo, reflexo. 



Dan, RIB - BEEN - SNEKKEN. 



diam. i lin. 



Tejfa convexiufcula , opaca, fupra fufcefcens, fubtus pallids, 

 j^jjfraffiis quatuor externe coftati, five plicis rransverlis armati; 

 in niajori anfraOiu triginta numeravi ; hic fubtus glaber eft. 

 j^perttira circulaius ; vix duodecima peripheriE pars ab anfraclu 

 oppofito interfecatur, cum in antecedente fere quarta. CoftiE, {{ tefta 

 lumini obvertatur, in fola apertura transparent. Labrum z\h\xva, 

 planum, reflexum. 



Hujus plurima fpecimina mifit ClariflT. Marthti fub denomi- 

 natione Serpentuli exigui Eerl. Mag. 4. B. p. 267. t. %. f. 25 , at 

 nec defcriptio nec figura fatis convenit, cum de ftriis ekvatis five 

 coftis ac labro reflexo ahum fiientium fit, fiuviatilisque dicatur, 

 Ipeciminum labra reflexa terreftrem probanr. 



In loco elevato Fridrichsdaknjls ab aquis reraoto, raris- 

 fima. 



234. HELIX 



