the Trondhjem Fiord. 363 
106. Pecten striatus, Miller. 
Specimens large. 
107. Pecten tigrinus, Miiller. 
Trondhjem and Rédberg. 
108. Pecten similis, Laskey. 
Trondhjem and Rédberg, down to 250 fath. 
109. Pecten imbrifer, Lovén, =? Pecten Hoskynst, Forbes. 
Only one living specimen, 250-300 fath., Rédberg. 
110. Lima excavata, Fabr. 
This magnificent shell is far from rare in the fiord, and was 
- taken both off Trondhjem and Rédberg in 150-300 fath., for 
the most part with the large corals and Alcyonarians on 
the precipices. 
111. Mytilus edulis, Linn. 
112. Modiola modiolus, Linn. 
Trondhjem. 
113. Modiola phaseolina, Phil. 
Trondhjem and Rédberg. 
114. Modiolaria marmorata, Forbes. 
In Ciona intestinalis at 'Trondhjem. 
115. Modiolaria nigra, Gray. 
Rédberg, shallow water. 
116. Crenella decussata, Mont. 
250-300 fath., Rédberg. 
117. Arca pectunculoides, Scacchi. 
100-250 fath., Roédberg. 
118. Arca 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. 
