4460 Mollusks. 



The following species have been found in the Firth and Province 

 of Moray, but are not in the ' Mollusca of Aberdeenshire,' viz. : — 

 I. Botryllus Schlosseri, Ascidia sordida, Molgula arenosa, Pelonaia 

 corrugata. II. Psammobia Tellinella, Tellina Balaustina, T. Dona- 

 cina, T. pygmaea, Astarte arctica, Cardium nodosum, C. Suecicum, 

 Nucula nitida, Area tetragona, Pecten striatus, Turtonia minuta. 

 III. Crania anomala. IV. Spinalis Flemingii. V. Chiton Hanleyii, 

 C. ruber, C. albus, C. marmoreus, Acmaea testudinalis, Pilidium fill* 

 vum, Fissurella reticulata, Trochus alabastrum, T. undulatus, Lacuna 

 puteolns, L. crassior, Rissoa Zetlandica, R. Beanii, Skenea rota, Ceri- 

 thium adversum, Scalaria Trevelyana, Aclis nitidissima, Chemnitzia 

 fulvocincta, C. indistincta, Odostomia cylindrica, O. decussata, Euli- 

 mella Scillae, E. acicula, Natica sordida, N. Helicoides, Lamellaria 

 perspicua, Fusus propinquus, Mangelia nebula, M. brachystoma, M. 

 costata, Marginella laevis. VI. Akera bullata, Scaphander lignarius, 

 Aplysia hybrida, and twenty-six species of Nudibranchs. VII. Arion 

 hortensis, Limax brunneus, Helix sericea, Buliraus acutus, Pupa pyg- 

 maea, P. antivertigo, Physa hypnorum, Planorbis glabra, P. nitidus. 

 VIII. Loligo media. 



The following species, described by Dr. Macgillivray, have not been 

 found in the Firth or Province of Moray, viz. : — II. Syndosmya 

 tenue (Amphidesma tenue), S. alba (Amphidesma album), Kellia 

 nitida (Lepton nitidum), Cardium pygmaeum (C. exiguum), Lucina 

 leucoma, Pisidium amnicum. V. Bithinia tentaculata (most likely 

 introduced), Buccinum Dalei (Halia Flemingii), Caecum trachea 

 (Ca3calium trachea), Lachesis minima, (Buccinum minimum, most 

 likely introduced), Rissoa vitrea, Rissoa ventrosa, Odostomia insculpta, 

 O. plicata, Truncatella Montagui (Eulima nitidissima), Chemnitzia 

 elegantissima (Eulima elegantissima). VI. Philine catena (Bulla 

 catena). VII. Planorbis vortex, Physa fontinalis, Helix fusca 

 (Zonites fusca), Helix pygmaea (Zonites pygmaea), Helix aculeata, 

 H. lamellata, H. hispida. Such is the relation, so far as is known, 

 of two northern and neighbouring districts. By future researches 

 these now somewhat numerous lists will be diminished gradually, un- 

 til a catalogue of the land and marine Mollusca of Aberdeen become 

 almost equivalent to that of Moray. The same sea washes both 

 shores ; and the soil, the situation, or the climate of the one district 

 does not differ so much from that of the other as to lead one 

 to expect that the difference of Fauna indicated by these lists will 

 long continue so marked as it now appears. 



