THE CLYDE DRAINAGE AREA AT LOW LEVELS. 539 



*tMya tnincata, L. Common in the glacial beds. 



* * M. tmncata, var. uddevallensis Dalmuir ; Lochgilp ; Kyles of Bute. 

 t M. arenaria, L. Garvel Park ; Lochgilp ; Bute. 



Saxicava (Panopoea) norvegica, Speng. Kyles of Bute ; Fairlie ; Lang- 

 bank ; Garvel Park ; Gourock. 



* t S. mgosa, L. Frequent in the glacial beds ; (R-B., Shewalton). 



S. mgosa, var. arctica, L. Jordanhill ; Garvel Park ; Kyles of Bute ; 



Dalmuir ; Lochgilp ; E. Tarbert. 

 S. rugosa, var. praecisa, Mont. Lochgilp. 



S. rugosa, var. sulcata, Smith. Paisley ; Rothesay ; Kyles of Bute. 

 S. pholades, Jeff. Garvel Park. 

 t Panopoea plicata, M. de la Groge. 

 t Pholas crispata, L. Cumbrae ; Garvel Park ; Kilchattan ; Stevenston ; 



(R-B., Shewalton ; Cumbrae). 

 P. dactylus, L. Stevenston ; (R-B., Shewalton). 

 t P. Candida, L. (R-B., Shewalton). 

 t Xylophaga dorsalis, Tur. (R-B., Shewalton). 

 t Teredo norvegica, Speng. (R-B., Shewalton). 

 + T. megotara, Han. 



* + Dentalium entalis, L. 



GASTEROPODA. 



t Chiton marmoreus, Fabr. Garvel Park ; Dalmuir ; Old Mains ; Lochgilp ; 

 Misk ; Garnock Water. 



t C. ruber, L. Garvel Park ; Dalmuir ; Lochgilp. 



t C. cinereus, //. Garvel Park ; Lochgilp. 



t C. fasicularis, L. 



t C. marginatus, Penn. 



t C. laevis, Fab. 



t Patella vulgata, L. Lucknow ; (R-B., Shewalton ; Cumbrae). 



t Helcion pellucidum, L. Garnock Water ; Garvel Park ; Lochgilp ; Dal- 

 muir ; (R-B., Shewalton ; Cumbrae). 



t H. pellucidum, var. laevis, Penn. Dalmuir. 



t Tectura virginea, Mull. Garvel Park ; Dalmuir ; Old Mains ; Paisley ; 

 Garnock Water; Kyles of Bute; Kilchattan; Lochgilp; Gourock; 

 Misk. 



t T. testudinalis, Hull. 



t T. fulva, Mull. 



t Puncturella Noachina, L. Frequent in the glacial beds. 



t Propilidium ancyloides, F. & H. 



t Fissurella^graeca, L. Clyde beds. 



+ Emarginula fissura, L. (R-B., Cumbrae). 



E. crassa, J. Sow. 



t Capulus hungaricus. L. 



Cyclostrema costulata, Moll. Paisley. 



t Trochus helicinus, Fabr. Frequent in the glacial beds ; (R-B., Shewalton). 



t T. groenlandicus, Chemn. Frequent in the glacial beds. 



T. lineatus, Da Costa. (R-B., Cumbrae). [Shell-mound, Ardrossan.] 



t T. tumidus, Mont. Frequent in the glacial beds ; (R-B., Shewalton ; 

 Largs). 



T. Vahlii, Moll Paisley ; Garvel Park. 



T. cinereus, Couth. Clyde Beds : glacial. 



t T. cinerarius, L. Lochgilp ; Garvel Park ; Kilchattan ; Garnock Water ; 

 Lucknow ; (R-B., Shewalton ; Cumbrae ; Largs). 



t T. millegranus, Phill. Clyde Beds. 



t T. magus, L. Clyde Beds ; (R-B., Shewalton ; Cumbrae ; Largs). 



t T. umbilicatus, Brod. & Sow. Garvel Park ; (R-B., Shewalton). 



