63 FAUNA OF BALUOHISTlN. 



Bemarks. — Although this species forms very characteristic casts, which are 

 easily recognizahle by their peculiar shape, I refrain from giving them a specific 

 name, as the ornamentation of the shell is unknown. In general this species bears 

 a strong resemblance to Volutomorpha conradi, Gabb. 



TOXIGLOSSA. 

 Family: CONIBM. 



Genus: OONUS, Linn^. 



OoNUS, spec. PI. XVI, fig. 11-lla. 



A single, and unfortunately very badly preserved specimen indicates the presence 

 of this genus. The conical shell, which measures 18 mm. in length, consists of five 

 whorls ; there were probably more, but the apex is broken off ; the angle of growth 

 is more pointed in the earlier whorls than later on, which makes the profile of this 

 form quite a peculiar one. The upper part of the whorls is slightly inclined, the 

 spire, therefore, although low, is not depressed. The last whorl is pretty high, and 

 accuminate at the anterior end. A round keel, from which the surface slopes 

 slightly towards the suture, runs some distance in front of it, and marks the limit 

 up to which the earlier whorls were involved. Striae of growth indicate that the 

 position of the slit must have coincided with the keel. 



Locality and stratigrapMcal position. — Maz^r Drik, horizon 8. 



Bemarks. — Although there is not the slightest doubt that the specimen 

 described above belongs to the genus Conus, I refrain from giving it a specific name 

 because too little is seen of its distinctive features. So far as can be made out, 

 it was probably smooth, except for a row of low nodules on the keel, and another 

 one just below the suture ; but I am not quite certain as regards the latter feature. 



