298 PLIOCENE MOLLUSCA. 



Great Eastern Railway at March. They were identij&ed by Wood as a variety of 

 B. pyramidalis, one of them being figured by him under that name. Since then 

 similar fossils have been obtained from several localities in the Icenian Crag, and 

 Mr. A. Bell informs me that they have been met with also fossil in the Wexford 

 gravels and in the Isle of Man. They correspond more or less nearly with a 

 Recent example from Spitzbergen I have received from the Zoological Museum 

 at Stockholm which is here figured. 11. pi/raniidalis has been recorded from the 

 Pleistocene deposits of Bridlington and Kelsey Hill, but to which variety the 

 specimens there obtained belong I do not know. 



Bela borealis (Reeve). Plate XXXII, figs. 12, 13. 



1845. Pleurotoma borealis, Eeeve, Concla. Icon., vol. i (Pleurotoma), pi. xxxi, fig. 277 (P. borealis in 



index, P. scalaris in plate) . 

 1884. Bela borealis, Morcli and Poulsen, MS. list in G-eol. Mus., Copenhagen, no. 39 (unpublished). 

 1905. Bela decussata, var. viridula, Kobelt, Icou. schalentrag. europ. Meeresconch., vol. iii, p. 265, 



pi. Ixxxiv, fig. 8 (Bela borealis in plate). 



Specific Characters. — Shell elongato-fusiform ; whorls slightly convex, obtusely 

 angulate, the last much the largest, three-fourths the total length ; clathrated 

 by inconspicuous but regular spiral lines and numerous close-set longitudinal 

 costge which die out on the body-whorl ; spire short and conical ; suture slight but 

 distinct ; mouth long, oval, angulate above, ending in a short canal which turns 

 slightly to the left ; outer lip thin, regularly curved, not expanded ; inner lip 

 forming a rather wide glaze on the columella. 



Dimensions. — L. 11 — 13 mm. B. 5 mm. 



Distribution. — Recent : Greenland. 



Fossil : Icenian Crag : Aldeby. Iceland. 



BetnarJcs. — The shell here figured is from the Icenian Crag of Aldeby, and 

 belongs to the Jermyn Street collection. It seems to agree with some Dr. Ravn 

 has sent me from the Pliocene of Iceland which were identified by Morch and 

 Poulsen with B. borealis, Reeve. I cannot say that the Crag fossil corresponds 

 altogether either with Reeve's figure of that species or with that of Pi'of. Kobelt. 

 I have no material available, however, to enable me to form any decided opinion as 

 to the correctness of Morch's identification or of ascertaining what the P. borealis of 

 Reeve really was. Our Crag shell seems to be the same as the Iceland fossil, and 

 I therefore adopt Morch's name for it.^ 



1 The nomenclature of this species seems to be in some confusion. Both Reeve and Kobelt use 

 different names in their plates and their text. The latter considers B. borealis to be a synonym of 

 B. viridula. Our shell differs considerably from G. 0. Sars' figure of the latter. 



