48 MOLLUSCA FROM THE CRAG. 



lip by the reflected portions of the canal, like Sue. undatum ; there were evidently lon- 

 gitudinal costse upon the shell, vestiges of which are remaining upon some specimens 

 on the upper volutions ; and traces of transverse striae may occasionally be seen, but 

 the shells are nearly smooth. It appears to be intermediate in form between Strombus 

 Norvegicus, Chemn., and Buc. fusiforme, Brod. (Zool. Jour., 1829, t. 3, f. 3), and it may 

 be said somewhat to resemble F. Koninckii, Nyst (pi. 40, f. 4), but that shell has a 

 smaller and narrower canal, and a more acuminated apex. Should this species hereafter 

 prove to be the same as Woodward's shell, my name must of course be given up. 



5. TROPHON SCALARIFORME. Gould. Tab. VI, fig. 7, a c. 



Fusus SCALARIFORMIS. Gould. Rep. upon the Invert, of Massachus. p. 288, fig. 203, 1841. 

 MUREX BAMFIUS (?). Don. Brit. Shells, pi. 169, fig. 1, 1799. 



PERUVIANUS. J. Sow. Min. Conch, t. 434, fig. 1, 1823. 

 Fusus LAMELLOSUS. Gray. Zool. of Beechey's Voy. pi. 36, fig. 13. 

 TRITONIUM CLATHRATUM. Loven. Ind. Moll. Scand. p. 12, 1846. 

 Fusus SCALARIFORMIS. S. Wood. Catalogue 1842. 



Tr. Testa fusiformi, ventricosd, costettatd ; utrinque attenuatd costis 15 20, sub- 

 lamellosis; anfractibus conveccis, l&vigatis (?), aperturd ovatd; canali elongatd recurvd. 



Shell fusiform and ventricose, attenuated at both extremities ; volutions convex, 

 smooth (?), suture deep ; longitudinally costated, costae or varices from 15 20, sub- 

 lamellated, aperture with an elongated and recurved canal. 



Axis, U inch. 



Locality. Red Crag, Sutton and Bawdsey. 



Mam. Crag, Bridlington. Recent, North Seas and Massachusetts Bay. 



This species is not very abundant in the Red Crag. It appears to correspond 

 precisely with the shell brought from the North Seas, and it is identical with that 

 found in the beds of the Clyde. The young of this species appears to differ from 

 Murex Bamjius, Mont., in having a less number of reflected costae, as well as in its 

 projecting processes. I have not seen the form of the true Bamjius, from the Crag. 

 M. Loven has united the two species in his Synopsis, under the name of clathratum 

 (Murex clathratus, Linn.). Our specimens from the Crag have been more or less 

 rubbed, so that the transverse striae, if they ever possessed them, are no longer visible. 

 Among Mr. Bean's specimens from Bridlington, there is one with the name of Bamfus 

 attached to it, but it appears to me to be only the young of this species. 



The shell named Fusus scalariformis, figured by Nyst (pi. 40, fig. 5), is a different 

 species. 



6. TROPHON COSTIFERUM. S. Wood. Tab. VI, fig. 9, a b. 



Fusus RUGOSUS. J. Sow. Min. Conch, t. 34, 39, 199. 1817. 

 MUREX RUGOSUS. Parkinson. Org. Rem. vol. iii, t. 5, fig. 16, 1811. 

 Fusus COSTATUS. J. Sow. Min. Conch. Syst. Ind. 1835. 

 S. Wood. Catalogue 1842. 



