54 auhiculid^;. 



Pedipes angulatus, Pfr. Si/n. Auric, n. 70 ; Novit. Conch, i. p. 24. 

 n. 40. pi. 6. f. 26-28 ; Mon. Auric, p. 71. 

 H. and A. Adams, Gen. rec. Moll. ii. p. 249. 

 Hab. Panama. 



6. Pedipes thxdens. 



Shell imperforate, globose-conic, thin, sculptured with crowded 

 indistinct spiral strise, dark fuscous; spire turbinate, rather 

 pointed; suture deep, bordered; whorls five, convex, the last 

 inflated, forming three-fifths of the total leng-th ; aperture nearly 

 diagonal, rather semicircular ; parietal plait middle-sized ; colu- 

 mellar lip callous, bearing two distant teeth ; peristome simple, 

 sharp, not toothed within. Length 3f , greatest breadth 1\ mill. 



Pedipes, no. 467, Poey, Memor. i. 394. 



Pedipes tridens, Pfr. in Proc. Zool. Soc. 1854, p. 122 ; Syn. Auric. 

 n. 71 ; Mon. Auric, p. 72. 



H. and A. Adams, Gen. rec. Moll. ii. p. 249. 

 Hab. Isle of Bermuda. 



Doubtful Species. 



Pedipes affinis, Fer. Prodi: p. 109. n. 4. 

 Beck, Ind. p. 105. n. 3. 



Hab. Isle de France. 



This species seems to belong to the genus Marinula, and mnv 

 be identical with Marinula patula, Lowe. 



Subfam. ILL AURICULLN^E. 



Terrestrial, living in moist situations. Shell with the peri- 

 treme expanded or thickened. 



Auriculea, Pfr. in Zcitschr.f. Malak. 1853, p. 9 ; Malak. PI. 1854, 



p. 149 ; Mon. Auric, p. 73. 

 EllobihiiTe, H. and A. Adams, Gen. rec. Moll. ii. p. 236. 



The following genera may be comprised in this subfamily : — 

 Pi/thia, Plecotrema, Cassidula, Auricula, Alexia, Blauneria ?, 

 Leuconia, Caryehium. 



5. PYTIHA, Bolten. 



Shell depressed ovate ; whorls provided on both sides with 

 varices, forming a more or less distinct zigzag streak on the 

 compressed sides; aperture externally wide, narrowed within 

 by a strong columella!-, and several strong parietal plaits : right 



