GASTROPODA. 3* 



and fainter, till on the body-whorl they have entirely disappeared ; 

 varices few, moderately strong ; the aperture is wide and terminates 

 in a short anterior canal ; the outer lip is sharp and merged into 

 a moderately thick varix ; inner lip thin. 



Locality.— R^ at Minbu, common at Yenangyat. 



Remarks.— This species might at first sight be mixed up 

 with T. davidsoni, but a closer examination will at once show the 

 difference ; in T. pardalis the last whorl bears no longitudinal ribs, 

 while in T. davidsoni they are particularly strongly developed. 



RANELLA TUBERCULARIS, Lam., Platb VII, Fig. i— \c. 

 1853. Ranella vipevina, d'Archiac and Haime, Descr. des Anim. foss. du groupe 



nummulitique de PInde, page 310, plate XXX, fig. 2. 

 1879-80. Ranella junghuhni, K. Martin, Die Tertiarschichten auf Java, page 54, 



plate X, fig. 2. 

 1881-82. Ranella raninoides, K. Martin, Beitrage zur Geologie Ost-Asiens und 



Australiens, vol. I, page 203, plate IX, fig. 6. 



The shell consists of six moderately ventricose whorls, which 

 gradually increase in height ; spire prominent; last whorl of about the 

 same height as spire. The ornamentation consists of strong revolving 

 ribs, of which there are generally three visible on the earlier whorls, 

 while there are 9 to 10 on the last whorl; between these there are 

 generally one but sometimes two fine filiform lines. The revolv- 

 ing ribs are crossed by longitudinal ribs which on the point of 

 crossing produce strong, rounded nodules on the first ; two con- 

 tinuous lines of strong varices are nearly opposite to each other ; 

 aperture small, terminating in a short anterior canal ; outer lip 

 sharp, denticulate, and united with the last, thick varix. 

 Locality. — Not rare at Minbu, common at Yenangyat. 

 Remarks. — The above species was first described by Messrs. 

 d'Archiac and Haime who compared it with Trit onium viperinum. 

 Lam. ; it cannot however be said that there exists a close relation- 

 ship between the two species. 



Under the name Ranella junghuhni K. Martin has described a 

 species from Java which must be considered identical with R. viperina; 



( 3« ) 



