75 

 THE MARINE MOLLUSCA OF MADRAS AND THE 

 IMMEDIATE NEIGHBOURHOOD. 



By J. COSMO MELVILL and R. STANDEN. 



(Read before the Society, Oct. 13th, i£ 



(Continued from page 4.S). 



Natica pulicaria Phil*". — One small individual, exactly agreeing 

 in marking with a large specimen so named in J. C. MelvilPs collec- 

 tion. Habitat, hitherto unknown. 



Natica (Neverita) chemnitzi Recluz (=A r . anipla Phil. var.). — 

 Three typical examples. Indian Ocean, China, Japan, Australia, 

 Mauritius. 



Natica (Polinices) columnaris Recluz. — Several small speci- 

 mens. Philippines, Mauritius. 



Natica (Polinices) mamilla L. — The numerous specimens we 

 have are medium-sized, and typical. East Indies, Lifu, Central Poly- 

 nesia, Philippines. 



Natica (Ruma) zanzibarica Recluz (=zN'. melanostoma Gm. 

 var.).* — Our specimens are a little more quadrangular than the type 

 of N. melanostoma. East Indies, Mauritius, Madagascar, Philippines, 

 Western Polynesia. 



Sigaretus javanicus Or. — Some good examples. East Indies. 



Sigaretus neritoides L. — Several examples of this common East 

 Indian Sigaretus, in a very good state of preservation. Some confusion 

 attends the limitation of the various forms of this genus, and Tryon 

 considers S. javanicus and S. neritoides identical. 1 We can hardly 

 agree with him. 



Sigaretus (Catinus) planulatus Em.*" — Several ; easily dis- 

 tinguished by its smooth, flattened surface. Australia, Philippines, 

 Zanzibar. 



Family IANTHIN1DM. 



Ianthina globosa Sw. — A beautiful and perfect example, pale 

 violet in colour. 



Family SCALARIIDJE. 



Scalaria (Scala) tenuicostata Sow. — Quite perfect and very 

 beautiful, the ribs being very closely set. Japan. 



Scaliola bella A. Ad. — One, seemingly identical with this 

 Japanese species. Our example is only eight whorled, however, as 

 against nine. It may very likely be an undescribed form, of which 

 more material is wanted before deciding. 



Aclis eoa Melvill.* — One, agreeing with the type from Bombay. 



1 Man. Moll., vol 8, p. 55. 



