46 (Bulletin of the Natural History Society . 
113. — MODIOLARIA NIGRA. — (Gray), Lovfcn. 
Mytilus discrepans. — Mont. (B). 
Eastport, five f., Stimpson (A). Grand Manan, common, 
Stimpson (A) (B). Common in Bay of Fundy, low 
water to sixty f., Verrill (F). Bradelle Bank, Whit- 
eaves (I). Passamaquoddy Bay, Ganong (0). Bliss 
and L’Etang harbours. 
114. — MODIOLA MODIOLUS.— Lin. (Horse-mussel). 
Mytilus modiolus. — L. (B). 
Grand Manan, on the shores, Stimpson (B). Shediac, 
Wliiteaves (1). Pendleton’s Id., Passamaquoddy Bay, 
Ganong (0). 
115. — MYTILUS EDULIS. — Lin., (Edible mussel). 
Grand Manan, very abundant, Stimpson (B). Bay 
Chaleur, Bell (C). Eastport, Gould (E). Bay of 
Fundy, littoral zone to fifty f., Verrill (F). Shediac, 
Wliiteaves (I). Passamaquoddy Bay, Ganong (0). 
L’Etang harbour, and everywhere in great abund- 
ance along the southern coast. 
Var. PELLUCIDUS.— Pennant. 
Occurs sporadically with M. edulis, in the same situ- 
ations. 
This species is exceedingly abundant on our southern coast, where it 
occurs in immense beds between tide-marks. It is extensively used for 
food in Europe, but is altogether unutilized among us for any such 
purpose. 
116. — LED A TENUISULCATA.— (Couth), Stimpson. 
Eastport, six f., Stimpson (A). Grand Manan, common 
on mud, Stimpson (B). Gould (EJ. Common in Bay 
of Fundy, six to eighty f., Verrill (F). Passama- 
quoddy Bay, Ganong (0J. 
