236 Dr. Gwjn Jeffreys on Arctic 



Buccinum Jiydrophanum^ Hancock. 



Buccinum hydrophanum, Hanc. in Ann. Nat. Hist. vol. xviii. p. 325, 



pi. V. f. 7 (1846). 



St. No. 2 (Egerton). 



Recent. Davis Strait {Warham and Harrison, fide Han- 

 cock) : Wellington Channel (Belcher) : ? White Sea and 

 coasts of Russian Lapland (Baer, Middendorff as Tritonium 

 Groenlandicum^ var. hydrophana) : Arctic Exp., Franklin- 

 Pierce Bay (Feilden and Hart) ; Dobbin Bay, 30 fms. 

 (Hart). 



Trophon clathratus, Linnd. 

 Murex clathratus, L. S. N. ed. xii. p. 1223. 



St. No. 12 (Feilden). 



For the range of this common Northern species and its 

 variety truncata, as well recent as fossil, see the ' Annals of 

 Natural History ' for April 1877, p. 325. I may add that the 

 typical form in a fossil state occurs at Macclesfield and Moel 

 Tryfaen (500-1360 ft.), and that Fusus costatus of Hisinger 

 and F. imbricatus of James Smith are among the synonyms. 

 In CO. Antrim the variety lives between tide-marks. 



Pleurotoma tenuicostataj M. Sars. 



Pleurotoma tenuicostata, Sars in Vid. Selsk. Forh. p. 259 (1868). 



St. No. 1 (Moss) ; fragment only. 



Recent. See Ann. Nat. Hist., April 1877, pp. 329, 330. 

 And add ' Bulldog ' Exp., 1622 fms. 



Pleurotoina exarata, Moller. 

 Defrancia exarata, Moll. Ind. Moll. Groeul. p. 12. 



St. No. 1 (Moss) ; fragment. 



Recent and Fossil. See Ann. Nat. Hist., April 1877, 

 p. 332. And add " East-Anglian Middle Glacial deposits " 

 jWood and Harmer). 



Pleurotoma Trevelyana, Turton. 

 Pleurotoma Trevellianum, Turt. in Mag. Nat. vol. viii. p. 351 (1834). 



St. No. 3 (Feilden). 



Recent and Fossil. For the geographical aiid geological 

 distribution of this species see Ann. Nat. Hist., April 1877, 

 p. 332. Sars dredged it at the depth of 400 fms., and has 

 recorded it as fossil at heights of 50-240 ft. It occurs in the 

 Red and Iceland Crags. 



