86 BOOK OF SPECIES. 



P. Ficus. Fig-shaped, more ventricose and 

 short than the last, with very crowded flattened 

 transverse striae, which are minutely decussated ; 

 bluish grey, mottled with brown, with scattered 

 darker spots; spire short, convex, mucronate at 

 the centre ; mouth smooth, and somewhat purple. 

 3J. W. 18. 29. 



P. spiRiLLus. Ventricose above; tail long, 

 slightly furrowed transversely; whitish, spotted 

 with fulvous ; body-whorl shortened, keeled in 

 the middle; flattened above, and tuberculated 

 beneath the middle ; spire depressed ; apex mam- 

 millary. 3. W. 28. 61 . 



STRUTHIOLARIA. 



Shell ovate or oblong, cha7melled at base, with 

 rough tubercular or spiny varices without; 

 aperture rounded; varices three or more on 

 each whorl, the inferior obliquely joined to the 

 others by a longitudinal series; operculum horny, 



S. NODULOSA. Ovate-conic, thick, trans- 

 versely striated ; whitish, with longitudinal yellow 

 flammules ; whorls angular above, nodular at the 

 angle, and above it flattened ; sutures simple ; lip 

 reddish within. 2. W. 26. 62. 



