376 L. R. CRAWSHAY. 



LUCINIDAE. 

 Lucina borealis (Linnaeus). 



One young specimen at Position 1. 

 Depth, 40 fath. 



Montacuta substriata. 



At Position 46, attached to Spatangus ])uiyureus. 

 Depth, 46 fath. 



LEPTONIDAE. 

 Kellia suborbicularis (Montagu). 



At Positions 1, 11 (two), 32 (two), 38 (two). 

 Depth, 40-44 fath. 



SCEOBICULAEIIDAE. 

 Syndosmya prismatica (Montagu). 

 Three specimens at Position 1. 

 Depth, 40 fath. 



TELLINIDAE. 

 Tellina crassa (Gmelin). 



At Positions 17 (one living), 53 (one overgrown valve). 

 Depth, 45-46 fath. 



MACTKIDAE. 

 Spisula elliptica (Brown). 



At Positions 5 (two), 6 (three dead valves, one bored), 58 (one). 

 Depth, 42-49 fath. 



Lutraria elliptica, Lamarck. 



One dead valve bored by Cliona, at Position 11. 



Depth, 42 fath. 



VENEEIDAE. 

 Dosinia exoleta (Linnaeus). 



One young specimen at Position 5. 



Depth, 42 fath. 



Dosinia lincta (Pulteney). 



At Positions 1 (one dead), 9 (three single valves), 10 (three living, 



one dead), 11 (one dead), 13 (one dead). 

 Depth, 40-42 fath. 



Venus fasciata (da Costa). 



At Positions 40 (one), 44 (one), 46 (two), 53 (one dead). 

 Depth, 44-46 fath. 



