BUCCINUM ANGULOSUM. 105 



liemarlis. — I have one or two fragmentary specimens in my collection from 

 Oakley, and there is another, nearly perfect, in the Sedgwick Museum at Cambridge 

 labelled B. nmhtfnni, which correspond more or less nearly with the figures of this 

 Avell-known and very distinct species given by the authors quoted above, and with 

 a shell from Spitzbergen that Dr. Nordmann has kindly sent me, except that the 

 Crag fossil is the more slender. 



By some authorities B. tenne is identified with B. scalar if or me, Beck. MM. 

 Dautzenberg and Fischer, in their recent Avork, regard the latter as a variety of 

 the former, the principal difference being in the length of the spire. Our Crag 

 fossils approach their figure and those of specimens from the Riviere du Loup 

 rather than the type form. 



Buccinum angulosum, Gray. 



1839. Buccinum angulosum, Gray, Zool. Beechey's Voyage, p. 127, pi. xxxvi, fig. 6. 



1902. Buccinum angulosum, Dall, Proc. U.S. Nat. Mus., vol. xxiv, p. 517, pi. xxxvii, figs. 1 — 3. 



Var. normalis, Dall. Plate IX, figs. 15, 16. 



1883. Buccinum angulosum, Kobelt, Martiui imd Chemnitz, Couch. Cab., ed. 2, pt. iii (Buccinum), 



p. 66, pi. Ixxvi, figs. 7, 8. 

 1902. Buccinum angulosum, var. normale, Dall, Proc. U.S. Nat. Museum, vol. xxiv, p. 518, pi. xxxvii, 



fig. 6. 



Varietal Characters. — Shell ovato-conical, solid, destitute of folds except some- 

 times on the upper whorls or immediately below the suture, showing in places the 

 lines of growth ; whorls convex, rapidly diminishing in size, the last ventricose, 

 excavated below, much the largest, nearly seven-eighths the total length ; 

 ornamented with very fine spiral stride ; spire very short ; apex obtuse ; suture 

 well-marked ; mouth large, wide, oval, projecting below the canal, angulated 

 above ; outer lip expanded, regularly curved ; inner lip forming a thin glaze upon 

 the pillar ; pillar short, excavated ; canal wide, open, very short. 



Dimensions. — (Of Crag specimens.) L. 42 mm. B. 28 mm. 



Distribution. — Recent: shores of the Polar Sea, near Behring Strait, Point 

 Barrow, Cape Smythe, low water to 5 fathoms. 



Fossil : Butleyan Crag : Butley, Hollesley. 



Remarl-s. — The fossil here represented was found at Butley, and has been 

 identified by Dr. Dall, who has kindly sent me a Recent specimen for comparison, 

 with which it closely agrees, as it does with Prof. Kobelt's figure {op. clt.). In some 

 respects it resembles B. ventricosum, Kiener {ojy. cit.), figured subsequently by Gould 

 as B. ciliatiim} Dr. Dall regards it, however, as the male of the well-known but 



^ B. ciliatum, Fabricius, is a different and smaller species. 



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