THE CLYDE DRAINAGE AREA AT LOW LEVELS. 541 



+ Homalogyra atomus, Phill. Frequent in the glacial beds (R-B., Largs ; 



Shewalton). 



t H. rota, T. and H. (R-B., Shewalton). 

 t Turritella terebra, L. (R-B., Shewalton ; Cumbrae). 

 t Caecum trachea, Mont. (R-B., Shewalton ; Cumbrae). 

 t C. glabrum, Mont. (R B., Shewalton ; Cumbrae ; Largs). 

 t Scalaria communis, Lam. (R-B., Shewalton ; Cumbrae). 

 S. groenlandica, Chemn. Fairlie. 

 t S. Turtonae, Turt. 



t Cioniscus (alcis) unicus, Mont. (R-B., Shewalton). 

 Odostomia unidentata, Mont. Lochgilp ; Garvel Park ; Kilchattan ;. 



Misk. 



t 0. rissoides, Han. (R-B., Shewalton). 

 t 0. turrita, Hanley Lochgilp ; (R-B., Shewalton). 

 0. plicata, Mont. (R-B., Shewalton). 

 t 0. spiralis, Mont. Lochgilp ; Dalmuir ; Garvel Park ; (R-B., Shewalton ; 



Cumbrae). 



0. lukisi, Jeff. Garvel Park. 



t 0. decussata, Mont. (R-B., Shewalton ; Largs). 

 tO. conoidea, Brocchi. Lochgilp. 

 1 0. pallida, Mont. Lochgilp. 

 0. pusilla, Phill. (R-B., Shewalton). 

 0. nitida, Aid. (R-B., Shewalton). 

 1 0. scalaris, Phill. 

 1 0. excavata, Phill. (R-B., Largs). 

 1 0. rufa, Phill- 

 + 0. acicula, Phill.- 

 1 0. nivosa, Mont.- 

 1 0. conspicua, Alder. - 

 1 0. insculpta, Mont.- 

 1 0. obliqua, Alder. - 

 1 0. indistincta, Mont.- 

 1 0. interstincta, Mont.- 

 1 0. nitidissima, Mont.- 



t Eulima distorta, Desk. Misk ; (R-B., Largs). 

 t E. pplita, L. 



tE. bilineata, Alder. (R-B., Largs). 



tNatica aB.nis, (clausa) Gmelin. Frequent in the glacial beds. 

 t N. catena, Da Costa. Dalmuir ; (R-B., Shewalton ; Cumbrae). 

 t N. groenlandica, Bid-. Frequent in the glacial beds. 

 t N. pallida, Brod. and Sow. Dalmuir ; Paisley ; Kilchattan. 

 t N. Alderi, Forbes. (R-B., Shewalton ; Cumbrae). 

 tN. Montacuta, Forbes, Clyde Beds; (R-B., Shewalton). 

 t N. Smithi, Brown, Ardencaple. 

 t N. sordida, Phill Troon. 

 t Adeorbis subcarinata, Mont. 



t Velutina laevigata, Penn. Garvel Park ; Dalmuir ; Kilchattan. 

 ** V. undata, Smith Garvel Park ; Dalmuir ; Old Mains ; Paisley ; Garnock 



Water ; Girvan. 

 t Lamellaria perspicua, L. 



t Trichotropis borealis, Brod. and Sow. Garvel Park ; Kyles of Bute. 

 t Aporrhais pes-pelicani, L. Garvel Park ; Kilchattan ; Gourock ; (R-B., 



Shewalton ; Cumbrae). 



t Cerithium reticulatum, Da Costa. Garvel Park ; Cumbrae Coll : Loch- 

 gilp ; Duntroon ; Garnock Water ; (R-B., Shewalton ; Cumbrae). 

 t Triforis perversa, L. Garvel Park ; (R-B., Shewalton ; Cumbrae ; Largs). 

 t Cerithiopsis tuberculata, Mont. 



