156 I^i". .T. Gwvii Jeffreys on 



diagonally ; edges jagged ; externally covered with very fine 

 and close-set cilia : liver dark-brown : ovari/ lemon colour. 



Station G, 410 fms. ; 9, 1750 fms.; 12, 1450 fms. Fin- 

 mark, 40-100 fms. (M. and G. O. Sars, M' Andrew, Malm- 

 gren). Spitzbergen (Torell, Goodsir). Swedish Arctic Ex- 

 pedition, 1868, 730 fms. 'Lightning' Expedition, 1868, North 

 Atlantic, 550 fms. 'Porcupine' Expedition, 1869, between 

 the Faroes and Orkneys, 560 fms.: 1870, off the coast of 

 Portugal, 740-1095 fms. Gulf of St. Lawrence, 150-200 

 fms. (Whiteaves). Fossil: Norway, older Glacial deposit, 

 90 feet above the sea-level (M. Sars and Kjerulf). 



The very young resembles Sijylwdentalium affine, M. Sars, 

 but is more conical or less cylindrical. 



Siphodentalium affine, M. Sars. 



Siphonodentalium affine, M. Sars, Christ. Vid. Selsk. Forh. 18G4,p. 299, 

 tab. vi. f. 34, .35. 



Station 12, 1450 fms. ; a single specimen. Finmark, 100- 

 300 fms. (G. O. Sars). ' Porcupine ' Expedition, 1869, West 

 of Ireland, 1215-1380 fms. : 1870, Channel slope, 690 fms. 



Siphodentalium lofotense,^!. Sars. 

 Siphonodentalium hfotense, M. Sars, loc. cit. p. 297, tab. vi. f. 29-33. 



Station 9, 1 750 fms. Norway, 30-300 fms. (M. and G. 

 O. Sars, J. G. J.). Hebrides and Shetland, 40-140 fms. (J. 

 G. J.). ' Porcupine ' Expedition, 1869, West of Ireland, 90 

 -1630 fms. : 1870, Bay of Biscay, 227-1095 fm.s.; Vigo Bay, 

 20 fms.; Mediterranean, 51-1456 fms. Gulf of Gascony, 60- 

 80 fms. (De Folin). Mediterranean, 50-600 fms. (Acton, 

 Spratt, Nares, Monterosato). 



Specimens from the Bay of Biscay and the Mediterranean 

 are usually much smaller than those from more northern seas. 



Cadulus tumidosus'^ J Jeifr. 



Shell forming a short spindle, slightly bulging in the middle 

 on the lower or moi^e concave part, and very gibbous on the 

 back or outside, somewhat curved, contracted towards both 

 ends, but much narrower at the base, rather solid, glossy and 

 semitransparent : sculpture none, except microscopic and 

 close-set lines : colour whitish : mouth roundish-oval, obliquely 

 truncated or sloping to the back ; the inner margin is furnished 

 with a slight circular rib or thickening like that in many 



* High -swelling. 



