LITTORINIDE. 147 
100 Port Canning, Penang, Singapore, Rangoon, Amherst and Akyab; 
coll, H. F. Blanford, J. Dodgson, F. Stoliczka, and G. Nevill, Ksqrs. 
Some marked male and some female by Dr. Stoliczka. 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. 
Littorina sinensis, Philippi, Abd. II, 1847, pl. VI, fig. 23, China; subvar.= 
L. strigata, Lischke, Nov. Conch. Sup. III, 1870, Nagasaki, long. 9 
diam. 6 mil. 
3 Hongkong; coll. R. Hungerford, Esq. [83, 5$]. 
10 Anmungkang [Formosa] ; coll. R. Hungerford, Esq. 
The LZ. [Melaraphe] blanfordi, Dunker, Malac. Blit., 1871, 
Eee temp en; long. 12, diam. 8 mil., is apparently a close 
ally f 
43. Littorina arboricola. 
Littorina arboricola, Reeve, Icon., fig. 27, 1857, Singapore. 
20 Andamans; coll. 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. Stoliczka. 
T am very loath to adopt this species as distinct; the differ- 
ences from DL. 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. 184, diam. 113 mil, 
