312 CHASTER AND HEATHCOTE : MOLLUSCA OF OBAN. 



A. nitida, Miill. [Forbes; A.M.N.]. One dead specimen 

 dredged. 



Cuspidaria cuspidata, Olivi. {Necera cuspidata). [Off 

 Dunolly Castle, Forbes; A.M.N.]. Two valves, one quite 

 fresh, dredged in muddy ground between Maiden and 

 Lismore Islands. 



Pandora obtusa, Leach. Dredged alive sparingly. 



Lyonsia norvegica, Chem. Living specimens and valves 



dredged off Maiden Island. The largest of the former is 



produced at the ends, and belongs to the var. elongata^ 

 Gray. 



* Cochlodesma praetenue, Pult. {Thracia J>r<eteniiis). 



[A.M.N. ; R.D.D. MS.]. 



* Thracia convexa, W. Wood. Mr. H. K. Jordan in lit., 



August 30, 1893, says: 'Between Maiden Island and 

 Lismore we got many fragments of Thracia convexa.'' 



T. papyracea, Poli. Several valves of the var. villosii/scula, 

 Macg. dredged. 



Terebratulina caput-serpentis, L. {Tenbratula caput- 

 serpcntis). Abundant in all the dredgings, especially com- 

 mon on clinkers from the steamboats. Several specimens 

 of a rich red colour were taken. A few young ones were 

 found attached to stones at low water near Kerrera ferry 

 and on Fraoich Island. 



Crania anomala, Miill. Abundant on stones and shells 

 everywhere on hard ground at all depths, especially so at 

 low water near Kerrera ferry and on Fraoich Island. These 

 littoral specimens attain large dimensions, one measuring 

 24 mm. across. They were always attached to the under 

 surface of the loose boulders ; those adhering to the more 

 superficial stones were dark in colour, while those on the 

 stones close to the ground were much paler. The var. 

 alba., Jeff, was also taken. 



J.C., vol. vii., Jan. 1894. 



