218 3. F. Whiteaves—Recent Dredging operations, etc. 
Mercenaria violacea Schum. Crepidula fornicata Linn. 
Gemma Tottenii Sz unguifor mis Lam. 
crore convexa Say. Paludinella minuta. 
Petrico pholadiformis Lam, and var. Odostomia tzifida To 
dac ache Turbonilla interrupta » Totten. 
Mactra solidissima Chemn. Lunatia heros Say. 
Mya ar enaria. Bittium nigrum Totten. 
P tranbebe N aasa obsoleta Say. 
Angulus tener Say. trivittata Say. 
Thracia Conrad (fine and frequent). sears lunata Say. 
Pandora trilineata? Say. EcuiInopD oe 
Solen ensis, vy. Ridesloand. Asterias vulgaris St. 
Teredo, sp. (in a spruce log). Cribella sangninolenta. 
Haminea solitaria Say. Kehinarachnius parm: 
Cylichna pertenuis Migh. Echinus Drébachiensis. 
Lottia alveus Conrad. Caudina arenata (Gould). 
Leaving Shediac by daybreak on the 22d of August, we 
dredged from that place to the Egmont Bank, and stood back 
again to the south shore the same evening. The gmont Bank 
is a small rocky patch, situated between ‘Shediac Bay and Cape 
Egmont, Prince Edward Island. The depth on it is less than 
ten fathoms, and the bottom consists of coarse sand and stones, 
the latter covered with Laminarie and smaller alge, and per- 
south of Sea Cow Head. In ie afternoon a tite barometer 
indicating the imminent approach of a storm, we made for 
caounnaigaedita and reached there only just in time to weather 
out the memorable gale of the 24th of August. We subse- 
quently oe ath to dredge in Hillsborough Bay, also, on the 
opposite shore, off Pugwash Harbor, N. 8, and off Shediac, 
Buctouche and Ri chibucto, in New Rank and on the 
9th of September I left the schooner and proc roceeded home. 
On the Prince Edward Teland side of Northumberland Straits 
ig the bottom is usually a red (Triassic) clayey mud, wee 
on the New Brunswick side it is generally sandy. The 
of the Straits.is of a meager Acadian type. rs few s oe 
py riods and oahetipaae collected here have yet to be deed 
he annelids are fine and frequent, but the echinoderms are a 
very common spec a At depths of more than four eoetes 
in Northumberland Straits, the following species were collec 
C Amphithée, sp. 
Eg a dmecienigen (fry.) [patbcheiras pin: 
Hipeolets pusiola Kr seal ra age 1 oe Har, 
Diastylis Incifera. ite 
: TUNICATA. ° 
‘Pontoporeia femorata. *Eugyra pilularis V. 
Ua tse Say. Pelonsia aresifere St 
