BY THE REV, J. E. TENISON-WOODS. 1031 



or semilunar, with or without interior teeth on the margin or 

 parietal wall ; lip simple or thickened internally or reflected ; 

 umbilicus covered to widely open. 



Animal capable of complete retraction within the shell ; the 

 jaw finely striate, or ribbed, sulcate, or plicate. 



Radula : — central teeth tricuspid, laterals bicuspid or tricuspid, 

 with an obsolete internal cusp ; marginals usually wider than 

 high, short, with two or three small cusps. 



Distribution : — world-wide ; about 3,400 species known. 

 Pfeiffer, Albers, Beck, Swainson, Ferussac, Tryon, H. and A. 

 Adams, and others have proposed a great number of groups 

 in which it is generally found that similar ones have a similar 

 geographical distribution. Unfortunately there has been a 

 lamentable want of consent amongst these and other authors as 

 to the grouping, and there is no accepted system which is followed 

 by the generality of conchologists ; it would seem in fact as if 

 each one had his own. In this list the system ©f Pfeiffer is 

 followed, who makes 86 sections and 67 sub-sections. 



Section 22, Hygromia. Subsection 1, Fruticola. 



Helix miliacea, von Mart.^ R. milium, von Mart. Monatsber. 

 Berl. Ak. 18th July, 1864, p. 524 (not Morse, 1859) = E. milicea, 

 (Fruticola), von Mart. Ostas. Zool. II. p. 268, pi. 12, fig. 15 ; 

 Pfr. Mon. Hel. V. p. 68. 



Amboyna. 



H. CRYPTOPILA, Mouss.= H. cryptopHa, Pfr. Novit. Conch. IV. 

 p. 40, No. 711, pi. 117, &gs. 10-12 z= R. helicinoides, var. von 

 Mart. Ostas. Zool. II. p. 270 ; Mouss. Jav. Moll. p. 23, pi. 2, fig. 

 6; Pfr. Mon. Hel. III. p, 162, V. p. 259 (not Horn, et Jacq.) 

 = R. cryptopila, Pfr. Mon. Hel. VII. p. 391. 



Island of Rakata ; Java. 



H. everetti (Fruticola), H. Adams, Proc. Zool. Soc. 1873, 

 p. 207, pi. 23, fig. 11 ; Pfr. Mon. Hel. VII. p. 401. 

 Sarawak, Borneo. 



