506 HELIX. 
superficiali; anfr. 4, rapide crescentes, ultimus supra valde con- 
vexus, infra planus, peripheria acute carinatus, antice paululum 
infra carinam descendens, supra non, infra distincte constrictus ; 
apertura subhorizontalis, securiformis, extus valde sursum flexa; 
peristoma subincrassatum, album, supra subrectum, extus late 
expansum, infra breviter reflexum, marginibus valde appropin- 
quatis, supero incurvato, infero arcuato. — Diam. maj. 23!/,— 
26, min. 417—419, alt. 10—11; apert. long. 14—415, lat. 10 mill. 
— Ins. Batjan.») 
S. 123. 
2658. Leprieuri Petit. (Coll Nr. 1416.) 
96883. H. collaris Pfr. 
T. parvula, late umbilicata, lenticularis, tenuiuscula, cor- 
neo-albida, utrinque subtilissime spiraliter striata, superne co- 
stis validis, radiantibus, suturam canaliculatam non attingen- 
tibus sculpta; spira vix elevata, vertice plano, laevigato; anfr. 
4!/, tumiduli, ultimus acute crenato-carinatus, antice solutus, 
deflexus, subtus subconstrictus; apertura horizontalis, subcir- 
cularis, lamina parietali profunde intrante et denticulis 2 basa- 
libus eoarctata; perist. continuum, undique breviter reflexum. 
— Diam. maj. 6!/4, min. 5!/,, alt. 2 mill. (Coll. Nr. 1417.) 
Helix collaris Pfr. im Malak. Bl. XIV. 1867. p. 197. 
Habitat ...? 
Obs. Species persingularis, H. sculpturatae Gray Nr. 2587 modo 
characteribus nonnullis peraffinis. 
XIV... Sireptaxis. (p. 439.) 
9. alveus Dunlix. — Helix contermina Reeve. 
