REVIEWS — GEOLOGICAL SURVEY OF CANADA. 273 



PI. Ucarinatus, The two latter found by Mr. Billings, at Lake 

 Clear.] 



Stegmbid-e : — [Rosfellaria occidentalis, Mr. Carpenter, Labrador 

 coast]. 



MuEiciD^ : — Fv^us horealis (DeKay) ; [-F. paramidilis, obtained 

 by Prof. Dawson from stomachs of cod ; F, (Trophon) scalariforme, 

 Mr. Carpenter, Labrador coast]. 



BucciNiB^ : — Buccinum undatum ; \_JB. trivitaium, Prof. Dawson]. 

 Purpura lapillus. 



JSfATiciDiE : — Natica heros ; N. triseriata (?) ; [iV. Grosnlandica, 

 -ST. clausa. Prof. Dawson, from stomachs of cod]. 



Ttjeritellid^ : — Scalaria Grcenlandica (Gould). [_Turritella erosa, 

 Prof. Dawson, from stomachs of cod]. 



LiTTORiNiDiE : — Zdttorina tenebrosa ; L. palliata ; L. rudis. \_La- 

 cuna vincta. Prof. Dawson]. 



TuEBiNiD^ : — {Margarita {Trochus) undulata, M. Jielicina ; Prof. 

 Dawson, from stomachs of cod]. 



Paludtkid^ : — \_Paludina decisa (Say) ; and two or three (?) 

 other species]. [Yalvata tricarinata (Say) ; V. pupoidea (?)]. 



Patellid^e : — \^Acmcea {Lottia) testudinalis, Acmoea caeca, Prof. 

 Dawson]. 



Chitokid^ : — \^Chiton marmoreus^ Prof. Dawson]. 



Lamelltbeanchiata. 



MTACiDiE : — Mya arenaria ; M. truncata ; \M. Uddevallensis]. 

 \_8axicava rugosa^ Prof. Dawson]. 



SoLENiDiE: — 8olen ensis. [Machcera costata. Prof. Dawson]. 

 Glycimeris siliqua. 



Tellinid^ : — Tellina grcenlandica ; T. calcarea j T. tenera. San- 

 guinolaria fusca, Mesodesma arctata. 



MACTEiD-aE: — Mactra ovalis. 



Cypeinid^: — \_Cardita lorealis, Prof. Dawson]. Astarte sulcata. 

 [The dredge will probably reveal the presence of other species of 

 Astarte, with examplesi of Cyprina Jslandica, &c.J 



CrcLASiD^: — \Cyclas. Seven or eight small species appear to 

 belong to our lakes and rivers]. 



Caedlad^ : — Cardium Islandicum ; [ C. Grcsnlandicum (?)] ; [ C. 

 pinnulatwn, Prof. Dawson, from stomachs of cod]. 



Umonid^: — Unio complanatus ; TJ. (^Alasmodon^ arcuatus ; TT. 



