GLOSSARY. 165 
B. 
Bélea, bay coloured. 
beak, see umbo. 
bicolor, with two colours. 
Lidentéta, with two teeth. 
bigrandta, with two small teeth. 
_bimargindta, with two lines of different colours round the 
margin. 
biplicéta, having two folds. 
_-bivalve, a shell composed of two plates. 
ee | with two bands. 
_bréuchial, pertaining to the gills. 
_brévis, short. 
_-byssus, a collection of strands by which D. folymorpha, 
etc., attach themselves to stones. 
-Bythinia, an ancient province of Asia Minor (Bithynia). 
CG 
Cecatlioides, blind. 
—¢calcéreous, chalky. 
candida, white. 
Cantiana, Kentish. 
caperdta, wrinkled. 
capuloides, resembling a knob or handle. 
_-cérdinal, pertaining to the hinge of a bivalve. 
_-tarindtus, keeled. 
carnivorous, eating flesh. 
