a50e = Rev. Canon Norman—A Month on 
MOLLUSCA. 
Admirable figures of all the northern Mollusca which do 
not occur on our own coasts will be found in G. O. Sars’s 
‘Mollusca regionis Arcticee Norvegice,’ 1878. 
CEPHALOPODA. 
1. Cetepus Bairdit, G. O. Sars (2? = O. arcticus, Prosch). 
A small specimen taken in Trondhjem Bay. 
GASTROPODA. 
2. Limacina retroversa, Fleming (= Spirialis retroversa, 
G. O. Sars). 
Two small specimens among dredged material at Rédberg. 
3. Acteon tornatilis, Linn. 
Rédberg, one dead specimen. 
4. Tornatina nitidula, Lovén (= Utriculus nitidulus, G.O. 
Sars). 
40-70 fath., Rédberg. 
5. Cylichna alba, Brown. 
Trondhjem and Rédberg, in 40-300 fath. 
6. Scaphander lignarius, Linn. 
Trondhjem. 
7. Scaphander puncto-striatus, Migh. 
Rédberg, 250-300 fath. 
8. Acera bullata, Miiller. 
Rédberg, 5-10 fath. 
9. Philine scabra, Mull. 
One living, Rédberg. 
10. Philine Lovent, Malm. 
One living specimen, 70-100 fath., Rodberg. 
11. Aldisa zetlandica, A. & H. 
One specimen, 200-250 fath., Rédberg. 
12. Caldina repanda, A. & H.,=Doris obvelata, G. O. Sars. 
Laminarian zone, 'Trondhjem. 
13. Triopella incisa, M. Sars. 
A specimen taken at Rédberg in 220-300 fath., easily 
recognized by Sars’s admirable figures. 
