320 Records of the Indian Museum. [Voi<. XTII, 1917.] 



{Moll. terz. Piem. e Lig., part XXX, pi. xi, fig. 35), there are 

 indications of a similar structure in the case of a fossil from the 

 Pliocene of Zinola near Savona, described as Pleurotoma monile, 

 Brocchi, var. granocostata, Sacco, which seems related to Pleuro- 

 toma congener, from which it is distinguished principally b}' its 

 less distinctly bifid circumsutural rim and by the differentl}^ dis- 

 posed crenulations of its sinus band, which are much wider-spaced 

 and are elongated in the direction of the spiral ornaments instead 

 of being constituted by axial ribs. 



In conclusion, I wish to express my best thanks to Dr. N. 

 Annandale for the favour of enabling me to study these interesting 

 specimens, and to M. R. Ry. Sethu Ram Rao of the Geological 

 Survey of India and Babu S. C Mondul of the Zoological Survey 

 of India, for preparing the beautiful photographs illustrating their 

 structures. 



