NASSA JAVANA, '157 



near the base , thickened and ridged within , with 1 3 

 strong ridges. Canal rather broad , slightly turned backwards. 



Length 23, breadth 12* j,^, length of aperture 10 mill. 



Hab. Southern Java: Tjilatjap , collected by Mr. verdijk 

 (Leyden Museum). 



This species resembles iV. picta Dunker in colour , but 

 may be distinguished from that species by the sculpture 

 of the upper whorls , by the denticles of the outer lip and 

 by the larger size ; in sculpture it resembles certain varie- 

 ties of N. mutahilis Linn., but it is suflSciently distinct in 

 all other respects. 



Rhoon near Rotterdam, May 1891. 



N.B. Besides Tritonidea undulata Schepm. (fig. 1) and 

 Nassa javana Schepm. (fig. 2) the two following 

 species, described in the „Notes" at an earlier 

 date, are figured on Plate 9. 



Pig. 3. Fusus Sieboldi Schepm., from Japan (Notes Leyden 

 Museum. XIII (1891) p. 62). 



Pig. 4. Oliva Semmelinki Schepm., from the Strait of 

 Larantoeka between Plores and Adonare (Notes 

 Leyden Museum. XII (1890) p. 196). 



Notes from the Leyden Museum, Vol. XIII. 



