51 Moll. 
MOLLUSC A. 
30. Canadian Region. 
Quebec. Helix cantiana from; Latchford, Am. Nat. xix. p. 1111; 
Canad. Nat. xv. p. 82. 
Manitoba. 72 species (Planorbis umbilicatus, sp. n.) enumerated, with 
localities and notes by Christy (75). 
Greenland. Aqriolimax aqrestis. L., and Avion fuscus. Mull. ; Heyne- 
mann, (178) p. 248. 
Point Barrow. 3 species mentioned by Dall (95, 96). 
Marine Mollusca. 
List of species which have been found in widely-distant localities; 
Smith, (341) pp. 4 & 5. 
Deep Sea Researches. 
Yerrill (367) enumerates a large number of all groups, dredged off 
the New England Coast, in from 1000-2500 fath. 
Lamellibranchiata from 2900 fath. in North Pacific, also more than 
thirty localities from 1000-2650 fath.; Smith, (341) p. 3. Some species 
occurring at very different depths ; id. t. c. p. 5. Shells of abyssal species 
tend to be without colour, and thin ; id. ibid. 
Deep-sea Mollusca , record of a few species from Mediterranean ; 
Giglioli & Issel, (138) p. 247. 
West and Mid North Atlantic. In water from 1000-1675 fath., about 
60 species of Lamellibranchs (14 new) enumerated by Smith, (341) 
pp. 9-11, from the ‘ Challenger’ dredgings. 
Mid South Atlantic. 1000-2650 fath., 6 Lamellibranchs (4 new) : 
Lyonsiella grand is , Cryptodon moseleyi , Malletia pallida , and Silenia 
sarsii, the last type of a new genus; id. t. c. pp. 12 & 25. 
Southern Ocean. 1375-1950 fath., 5 Lamellibranchs (all new) : Pecten 
pudicus , Amussium meridionale , Lyonsiella papyracea, Silenia sarsii, 
Necera meridionalis ; id. t. c. p. 13. 
Mid-Pacific. 1375-2900 fath., 8 Lamellibranchs :— Semele (Abra ) pro- 
fundorum , Callocardia (?) pacifica, Area (B irbatia) pteroessa , A. ( B .) 
corpidenta, Nucula profunclorum, Sarepta abyssicola , Amussium meridion¬ 
ale, spp. nn. ; id. t. c. pp. 22 & 23. 
Fusus abyssorum, Fischer, Oocoris sulcata , Fischer ; Filhol, La Nature, 
xiii. p. 230, fig. 3. 
1. Arctic Province. 
Behring's Sea. 40 Lamellibranchs (none new), with depths and precise 
localities, recorded by Krause (216). 66 Gastropods (5 new) and 3 Ptero- 
pods (1 new) ; id. t.c. 
Point Barrow. 1 Cephalopod, 1 Pteropod, 43 marine and 3 land Gastro¬ 
pods, and 13 Lamellibranchs are given by Dall (95). Bela harpa, B. mur- 
dochiana, Strombella malleata , spp. nn. ; Prelim. List, id. (96). 
White Sea. Remarks on the Mollusca of the Solowetzky Gulf, LEolis 
