the Trondhjem Fiord. 365 
determination is wrong, since the hinge in my shell closely 
corresponds with that of Montacuta ferruginosa and with 
Sars’s description. Unfortunately the specimen I had of 
Decipula ovata from the Oster Fiord, identified by Jeffreys, 
has been broken and lost (Norman, Journ. of Conch. vol. i. 
STO. p42). 
154. Montacuta bidentata, Mont. 
Rédberg, 0-10 fath. 
135. Cryptodon ferruginosus, Forbes. 
70-100 fathoms. 
136. Cryptodon croulinensis, Jeftr. 
100-300 fath., Trondhjem and Rédberg. 
137. Cryptodon flecuosus, Mont. 
Down to 300 fath. 
138. Cryptodon Sarsit, Phil. 
With the last. 
139. Lucina borealis, Linn. 
Trondhjem, specimens small. 
140. Cardium echinatum, Linn. 
Trondhjem. 
141. Cardium edule, Linn. 
Trondhjem, tide-marks. 
142. Cardium fasciatum, Mont. 
Trondhjem and Rédberg. 
143. Cardium minimum, Phil. 
Trondhjem and Rédberg, 70-300 fath. 
144. Cyprina islandica, Linn. 
‘Trondhjem. 
145. Venus gallina, Linn. 
A single valve, Trondhjem. 
146. Venus ovata, Pennant. 
Trondhjem and Rédberg. 
147. Dosinia lincta, Pult. 
Rédberg, shallow water. 
148. Psammobia Jerroensis, Chemn. 
A single specimen, Trondhjem. 
