92 THE INVERTEBRATE FAUNA 



Berwick, etc. Living abundantly on mud 

 flats at Bo'ness (M.). 



White specimens of H. ulvce come ashore 

 at Newhaven. As they are dead, and 

 may be only bleached, it would be unsafe 

 to say that they are the var. albida (J). 

 We have found this species in Largo Bay. 



SKENEID^E. 



Skenea planorbis (Fabr.). 



Firth of Forth (M'R). 

 Abundant on Cladophora and other sea- 

 weeds at Dunbar, North Berwick, and 

 Granton (J) ; Elie (nob.). 



Homalogyra atomus (Philippi). 



In shell sand between North Berwick and 

 Canty Bay, not plentiful (M.). 



VERMETID^E. 



Ccecum trachea (Mont.). 



Firth of Forth (Ed. Mus.). 



C. glabrum (Mont). 



Not rare in fine shell sand at North Ber- 

 wick (M.). 



TURRITELLID.E. 

 Turritella terelra (Linn.). 



Firth of Forth (M'B., as T. communis) ; 

 Firth of Forth, 30 fathoms (Metz. and Mey., 

 as T. ungulina) ; Firth of Forth (Ed. Mus). 

 Alive on the shore at very low water, near 

 Cramond Island (M.~). 

 This species is very common in the 

 Firth ; in some spots e.g., off the east side 

 of Inchkeith, 12 fathoms ; off Aberdour, 

 5 fathoms; and KirkcaldyBay,9 fathoms 

 the dredge comes up almost full of dead 

 shells of this species, imbedded in slimy 

 grey mud. 



