236 Dr. Gvvyii Jeffreys on Arctic 



Buccinum hydrophanum^ 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 

 Orcetilandicum, var. hydrophana) : Arctic Exp., Franklin- 

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

 (Hart). 



Trojthon clathratus, Linn^. 

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



St. No. 12 (Feilden). _ 



For the range of this common Northern species and its 

 variety trimcata^ as vs^ell recent as fossil, see the ' Annals of 

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

 typical foi'm in a fossil state occurs at Macclesfield and Moel 

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

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

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



Pleurotoma tenuicostata, M. Sars. 



Pleurotoma temdcostata, 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. 



Pleurotoma exarata^ Moller. 

 Defranda exarata, Moll. Ind. Moll. Groenl. 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 " 

 (Wood 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 and 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. 



