PLATE 23 



155. Aurinla iouldlana Dall, p. 64 



156. Adelomelon becki (Broderlp), p. 56 



157. Fulioraria delicata (H. C. Pulton); p. 20 



158. Alcithoe hedleyi Murdoch and Suter , p. 27 



159. Fulioraria prevostiana (Cros3e)j p. 22 



160. Pachymelon ullsonae Powell, p. 33 



