300 SMART AND COOKE : MARINE SHELLS OF SCILLY. 



Fusus antiquus L. — One young and dead specimen only, 

 from the Menavawr dredgings. 



F. gracilis DaCosta. — Very rare; two or three worn speci- 

 mens from the beaches. Two specimens also occurred of 

 a variety approaching cotivoluta, only the size was larger 

 and the ridges very strong. 



Nassa reticulata L.— Exceedingly abundant under Zostera, 

 at low water mark spring tides, clustering under any piece 

 of decaying rubbish, also in clean sand near Pentle Bay, 

 with Telli7ia crassa and Natica niiida. 



N. incrassata Miill. — Under stones at low water mark almost 



everywhere, especially at Golden Ball Bar, where we have 



taken a family of a dozen from one small stone ; also from 



the deep water, common. 

 Defrancia teres Forbes. — Very rare, one or two good 



specimens from the deep water, 

 D. gracilis Mont. — From the Menavawr dredgings, not very 



rare. 

 D. linearis Mont. — With the above, common. 

 D. purpurea Mont— Also from the deep water, but rare and 



not full grown. 

 D. purpurea var. Philberti Mont. — With the type, but only a 



fragment. 

 Pleurotoma costata Don. — With the preceeding, common. 

 P. nebula Mont. — Same locality, but not common ; also from 



Crow Sound. 

 P. septangularis Mont. — Rare, a few good specimens from 



the gravel outside Menavawr. 

 P. rufa Mont. — Thrown up on the sandy beaches, rather 



common. 

 Marginella Isevis Don. — Not rare from the deep water outside 



Menavawr and Shipman Head. 

 Cypraea Europaea L. — Living, from Crow Sound dredgings, 



and generally distributed. 



J.C, iv., 'April, 1S85. 



