the Trondhjem Fiord, 3()3 



106. Pecten striatus, Miiller. 

 Specimens large. 



107. Pecten tigrinus^ Miiller. 

 Trondhjem and Rodberg. 



108. Pecten similis^ Laskej. 



Trondhjem and Rodberg, down to 250 fath. 



109. Pecten imhrifer^ Loven, =?Pecte;i Hoskynsi^ Forbes. 

 Only one living specimen, 250-300 fath., Rodberg. 



110. Lima e.vcavata, Fabr. 



This magnificent shell is far from rare in the fiord, and was 

 taken both off Trondhjem and Rodberg in 150-o00 fath., for 

 the most part with the large corals and Alcyoiiarians on 

 the precipices. 



111. Mytilus edulisj Linn. 



112. Modiola modiolus, Linn. 

 • Trondhjem. 



113. Modiola phaseoUna, Phil. 

 Trondhjem and Rodberg. 



114. Modiolaria marmovata, Forbes. 

 In Ciona intestinalis at Trondhjem. 



115. Modiolaria nigra, Gray. 

 Rodberg, shallow water. 



116. Crenella decussata, Mont. 

 250-300 fath., Rodberg. 



117. Area pectunculoides, Scacchi. 

 . 100-250 fath., Rodberg. 



118. Area nodulosa, Miiller. 



A single valve only, Trondhjem, in about 70 fath. 



119. Nucula nucleus, Linn. 

 Only one, Trondhjem. 



120. Nucula nitida, Sow. 

 Frequent down to 300 fath. 



121. Nucula tumidula, Malm. 



100-300 fath., Trondhjem and Rodberg. 



