LITTORINnXE. 147 



100 Port Canning, Penang, Singapore, Rangoon, Amherst and Akyab ; 

 coll. H. F. Blunford, J. Dodgson, F. Stoliezka, and G. Nevill, Ksqrs. 



Some marked male and some female by Dr. Stoliezka. I 

 can see no difference ! 



15 Bombay ; coll. Rev. Fairbank, and W. T. Blanford, Esq. 

 6 Mauritius; coll. G. Nevill, Esq. 



These last a slightly different form. 



var. sinensis. 



Littdrina sinensis, Philippi, Abb, II, 1847, pi. VI, fig. 23, China ; subvar. = 

 L. strigata, Lischke, Nov. Conch. Sup. Ill, 1870, Nagasaki, lung. 9 

 diam. 6 mil. 



3 Hongkong; coll. R. Hungerford, Esq. [8|, 5f]. 

 10 Aumungkang [Formosa] ; coll. R. Hungerford, Esq. 



The L. [MelarapJie] Uanfordi, Dunker, Malac. Blat., 1871, 

 Rockhampton, long. 12, diam. 8 mil., is apparently a close 

 ally? 



43. Littorina arboricola. 



Littorina arboricola, Beeve, Icon., fig. 27, 1857, Singapore. 



20 Andamans ; toll. Colonel E. S. Berkeley, and F. A. de Roepstorff, Esq. 



A smaller form than the type, somewhat approaching some 

 varieties of Littorina conica, Phil., and equally variably and 

 prettily coloured ; the spiral sculpture rather less developed. 



5 Singapore;. coll. Dr. F. Stoliezka. 



I am very loath to adopt this species as distinct ; the differ- 

 ences from L. scabra are evident at a glance ; L. pallescens, 

 Phil, and L. philippiana, Reeve, are the nearest I know ; the 

 more convex whorls, thinner substance, absence of keel at 

 the periphery, and the rather peculiarly " excavately appressed " 

 columella seem, however, characteristic ! In size and color- 

 ation all five of the above resemble the type. 



Long. 18J, diam. llf mil. 



