120 



Shell Life 



Blunt Tellin 



grooved 



with a fibrous yellow-brown epidermis, but this soon 

 gets completely cleaned off as the mollusk burrows in 

 the sand. The Baltic Tellin 

 {T. halthica) has a glossy shell, 

 somewhat triangular when 

 viewed from the side, but 

 rather globular as seen from 

 the end. In colour it varies 

 from white to crimson, occa- 

 sionally with bands of a deeper 

 tint; and the surface finely 

 The animal is yellowish, tinged with 

 brown ; the upper siphon larger than the lower. 

 Its habitat is in sandy gravel and 

 mud, between tide-marks, all round 

 our coasts. The Thin Tellin {T. tenuis) 

 is triangular-oval, flattened, thin, and 

 semi-transparent, varying in colour 

 from white, through yellow to rose; 

 the right valve larger than the left. The animal is 

 yellowish white, its siphons nearly equal in length. 

 It frequents sandy beaches about 

 low-water mark, but it does not 

 burrow deeply. The Bean - like 

 Tellin (T. fahida) has a triangular- 

 oval, thin, and semi-transparent 

 shell, glossy, pearl - white tinged 

 with yellow. The animal is similar to that of 

 the Thin Tellin, of a clear white colour and with 

 slightly longer siphons. It is common in sandy bays 

 from low water to 15 fathoms. 



The Rough Tellin (T. squalida) is flattened and 

 thin, the valves slightly unequal, opaque, satiny, of 



Baltic Tellin 



Thin Tellin 



