ATlIOniANTA. 



29 



h. Sculpture of decussating lines and of oblique 



shallow grooves and low ridges basileus. 



Whorls transversely striated, without decussation 

 or grooves • 



I. Sinistrorse. (AEioniANTA.) 



heddomii. 



chenui. 

 juliann. 

 maderaspatuna. 

 r/assii. 

 solatci. 



A. Perforate or very narroivh/ umlilkated. 



a. Not horny : banded spirally above, or white or broiun throuyhout. 



[a', liadula ivitli a very narroiv band of median teeth. The left 

 dorsal lobe divided.'] 



51. Ariophaiita laevipes, MiUl. (Helix) Hist. Ver. ii, P- 22 (1774); 

 Ifr. (Helix) Mo7i. Hel. i, 1847, p. 71 ; id. t cm, 18.)3,^p. 75;^^e^- 



(animal) ; ii, p. 81, pi. 80, fig. 5 (anatomy), pi. 82, fig. 4 (radula), 



Helix trifasciata, Chemn., Mart. S,- Chemn. Syst Omch.-Cah J^, 



p. 308, pi. 213, figs. 3018-19 (1795) ; P^. ^<^'^- ^^^■''\^f^'^ 



p. 76; id. t. c. vii" 1876, p. 128; H. ^- T. C. I. 18/6, pi. 131, 



fig. 4. 



Shell depressed, rather thin, obliquely striated and decussated 



with fine spiral lines above, smooth beneath, white or whitish 



with three spiral chestnut bauds ; spire low, conoidal ; \\ horls 5, 



Fig. 18. — Ariophaiita Ixevipcs. \. 



slightly convex, the last rounded beneath, angulate at the peri- 

 i)hery, the angulation generally disappearing near the mouth ; 

 aperture lunate, diagonal ; peristome in one plane, simple above, 

 slightly thickeued and reflected below. 



