the Trondhjevi 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. ii. 

 1879, p. 42). 



134. Montacuta Mdentata^ Mont. 

 Rod berg, 0-10 fath. 



135. Cryptodon ferruginosus^ Forbes. 

 70-100 fathoms. 



136. Cryptodon croulinensis, Jeffr. 

 100-300 fath., Trondhjem and Rodberg. 



137. Cryptodon Jlexuos us J Mont. 

 Down to 300 fatli. 



138. Cryptodon Sarnii, i-'hil. 

 With the last. 



139. Luci'na boreali&^ Linn. 

 Trondhjem, specimens small. 



140. Cardium echinatum, Linn. 

 Trondhjem. 



141. Cardium edule^ Linn. 

 Trondhjem, tide-marks. 



142. Cardium fasciatum J Mont. 

 Trondhjem and Rodberg. 



143. Cardium minimum, Phil. 

 Trondhjem and Rodberg, 70-300 fath. 



144. Cyprina islandica, Linn. 

 Trondhjem. 



145. Venus gallina^ Linn. 



A single valve, Trondhjem. 



146. Venus ovata, Pennant. 

 Trondhjem and Rodberg. 



147. Dosinia lincta, Pult. 

 Rodberg, shallow water. 



148. Psammohia Jerroensis, Chemn. 

 A single specimen, Trondhjem. 



