132 siPHO. 



S. BREVICALDA. Dcsll. 



Kamtschatkn. 



Not llgured. Said to resemble S. lividus, Morch. 



1)1 Sowerby's monograph of Fusus, just published in the 

 Thesaurus Conehyliorum, occur the following* species, referable 

 to Sipho: 



8. RECTiPLiCATUS, 8owb. PI. SI, fig. (il2. Northern Sean. 



This is a form of the very variable S. Kroi/eri, Moller. 

 S. OBEsus, Sowb. PI. 87, fig, 624. Northern Seas. 



Nearly allied to S. glabra, Verkriizen, but more bulbous below. 

 Probably not distinct from that species. 



S. SOLIDULUS, Sowb. PI. 87, fig. 622. Northern Seas. 



= S. Stimjysoni, Morch, Var., p. 126, t. 51, f. 313. 



Through the courtesy of Prof. Fricle, who has forwarded to 

 me proof plates of his forthcoming work on the Mollusca of the 

 Norwegian Polar Expedition, I am enabled to illustrate the 

 following additional species : 



S. Danielseni, Friele. PI. 87, tig. 610. 



Shell whitish. Length, 39 mill. 



Dredged between Norway and Greenland, at 1000 fathoms. 



Ver}- closely related to S. Hcidus, Morch (t. 53, f. 321 ), and 

 S. Sa7'sii, Jeffreys (t. 52, f. 322, 323). I have not seen specimens 

 of this or the succeeding species. 



S. Hanseni, Fricle. PI. 87, fig. 628. 



Yellowish brown. Length, 61 mill. 



Spitzbcrgen. 



Only one example found. Resembles the variety of S. Stinij)- 

 soui, which I have illustrated, PI. 51, f. 313. 



S. viRfJATDS, Friele. .PI. 87, fig. 613. 



Reddish yellow. Length, 30 mill. 



Near Lofoten, Spitzbergen. 

 In form and extraordinarily short canal, like S. Vcrkruzeni, 

 but sculpture and apex different. 



