Sir H. H. KoiDorth — The Western Baltic. 



457 



The shells found in the Sound, according to Orsted, are 



Limncea halthiea. 



Paludinella ulv(e. 



P. haltiea. 



F. vulgaris. 



Neritina halthiea (a var. oijiuviatilis). 



Trochns cinerarms. 



jVucula, n.sp. 



iV. margaritacea. 



Leda rostrata. 



L. intermedia. 



Modiola vulgaris. 



M. discrepans. 



Litorina litorea. 



L. petrcea. 



L. rudis. 



L. retusa. 



L. fatalis. 



Lacuna quadrifasciata. 



L. canalis. 



L. pallidula. 



Nassa reticulata. 



Purpura lapillus. 



Cerithium danicum. 



Accra bullata. 



BullcBa aperta. 



Tergipes laciniilatus. 



Limapontia nigra. 



Yelutina capuloicles. 



Buccinum imdcctum. 



Fusus antiquus. 



Fusus sp. 



Trophon clathratum. 



Cardium echinatum. 



Ahra tenuis. 



A. nitida. 



Psammobia faeroensis. 



■Cryptodon Jlexuosuin. 



Tellina depressa. 



T. tenuis. 



T. halthiea. 



Astarte damnoniensis. 



A. striata. 



Lucina radiila. 



Cyprina islandica. 



Venus gallina. 



Solen pellucidus. 



Hiatella arctica. 



Mya truncata. 



M. arenaria. 



Phalusia intestinalis . 



P. tuhifera. 



Doris tubereulata. 



Boris, n.sp. (like verrucosa). 



F). ohvelata. 



Polycera quadrilineata. 



Defrancia sp. 



Rostellaria pespelicani. 



Bentalium eulale. 



Mytilus edulis. 



Cardium edule. 



Corhula nucleus. 



Mactra solida. 



Mactra, n.sp. 



Pecten opercularis. 



P. striatus. 



P. septemradiatus, 



Anomia squamula. 



A. aciileata. 

 Anomia, n.sp. 

 Idalla caudata. 

 Tritornia velata. 

 Folidia papillosa. 

 Actceon minutum. 

 Patella pellucida. 

 P. virginea. 

 P. tesselata. 

 Chiton cinereus. 

 C. ruber. 

 Ascidia rustiea. 

 Paludinella sp. 



Orsted does not give names to these 

 four species, as he had not seen the 

 animal, but only dead shells (id., 

 p. 70). He also refers to three new 

 species of Ascidia to which he does 

 not give names (id., p. 74). 



The living fauna of tlie two Belts is not so well known as that of 

 the Sound, but it apparently has the same lesson for us. 



Meyer tells us he found in the Little Belt, between the islands of 

 Fano and Fiinen, in half a day's dredging, several species, such as 

 Doto coronata, Saxicava rugosa, Flustra foliacea, and Solaste^- papporus, 

 which do not occur in the Baltic, while in a few hours' fishing in the 

 Great Belt he added the following species of marine animals to those 

 occurring in the true Baltic (Meyer & Mobius, i, xix) : — 



Trochus cinerarius. Leda caudata. 



Aporrhais pespelicani. Saxicava rugosa. 



Scalaria communis. Balanus porcatus. 



Eulima distorta. Pomatocerus tricuspis. 



Trophon clathratus. Psolus phantopus. 



