70 MOLLUSCA OF SOMERSET. 
According to the Conchological Society’s List of British 
Marine shells, the type as it now stands is the var. attenuata 
of Jeffreys (see Vol. 11, “ British Conchology,” p. 376), and 
what was formerly considered as the type is the var. carnaria, 
Pennant. The colour is very variable, “ of all hues and shades, 
from milk-white to yellow or crimson, often relieved by narrow 
zones or concentric belts of a deeper tint, rarely pink in the 
earlier stages of growth and abruptly becoming white after- 
wards.” 
The var. nivea, Jeffreys, shell smaller and more compressed 
than the type, snow-white, is not infrequent on the coast about 
W eston-super-Mare. 
MACTRIDZ. 
SPISULA SOLIDA, Linné (= Mactra solida, Linné). 
Weston-super-Mare. Uncommon ! 
LUTRARIA ELLIPTICA, Lamarck. 
Frequent in soft and slushy sand. The following observa- 
tions by Montagu may be useful to those who wish to obtain 
living specimens :—It is rarely obtained alive, except by 
digging, and that only when the tide is unusually low: their 
place of concealment is generally known by a dimple on the 
surface, through which they eject water to a considerable height, 
though the shell is frequently buried two feet beneath.” 
About Weston, and the coast between Brean and burn- 
ham ! 
VENERID&Z. 
LUCINOPSIS UNDATA, Pennant. 
About Burnham. Rare! 
DosInia LUPINA, Linné (= Venus lincta, Pulteney). 
Same locality as the preceding. Rare! 
VENUS GALLINA, Linne. 
Between Burnham and Brean. Rare! 
TAPES VIRGINEUS, Linné. 
Burnham, Weston-super-Mare ! 
