10 Herman Friele. Preliminary Report on Mollusca. 



white; structure consists of numerous lines of growth and micro- 

 scopical close-set transverse lines. 



Size: L. 9 B. 6,5 mm - 



Fig. 19 a . The teeth- Radula has 16 joints. 



Gizzard is armed with three uncommonly large and stout 

 plates fig. 1 9* measuring no less than 6 m - m - The living aoimal 

 being I5 mm - long the gizzard consequently measures two-fifths of 

 its length and two-thirds of the shell. 



Hab: cold area St. 18, 400 f. & 87, 488 f. 



Explanation of the Plate. 



Fg. 1 & la Mont acuta (?) Vøringi and hinge. 

 2 Teeth of Pilidium commodum Midd. 



Jaws of the same. 

 Teeth of Cyclostrema Peterseni. 



« « Rissoa Weyville Thomsoni Jeff. 

 « and Operculum of Pleurotoma ovalis. 

 Operculum of Pleurotoma Willei. 

 Teeth & Operculum of Buccinum Morchi. 

 « of Buccinum firmarkianum Verk. 

 « c Buccinum Humphreysianum Benn. 

 « « Fusus Berniciensis King 

 « and Operculum of Fusus Sarsi Jeff. 

 « of Fusus Møebi D. & M. (F. ebur Mørch). 

 Copy of Dunener & Metzger. 

 « and Operculum of Fusus lachesis Mørch. 

 « of Fusus Mohni Fr. 

 « and Operculum of Fusus Sabini Gr. 

 « « « of the embryo of F. Sabini Gr. 



« « « Fusus turgidulus Jeff. 



« of Fusus islandicus Chinn. 

 Philine Ossian Sarsi. 

 « 19a & 19b Teeth and Gizzard of the same. 



2a 



3 



4 



5 & 5a 



6 



7 & 7a 



8 



9 



10 



11 & 11a 



12 



13 & 13a 



14 



15 & 15a 



16 & 16a 



17 & 17a 



18 



19 



