REPORT ON THE SCAPHOPODA. 5 



Shell. — White (chalky), but porcellanous beneath the surface; rather straight, with 

 a considerable bend near the apex ; of rather rapid expansion from a very fine apex. 

 Sculpture: The whole surface is faintly marked with scarcely impressed longitudinal 

 Hues of very equal interval (about 0"0055 apart) ; transversely it is very faintly scratched 

 all over by very slight lines, which run elliptically round the shell. The apex has a very 

 narrow, slightly ragged fissure, about 0"027 in. long, which lies uusymmetrically on the 

 convex curve. L. - G in., B. 0"09. 



This differs from Dcntalium Icptoskdcs, Wats., in being more curved and more conical. It 

 resembles in form the young of Dentalium lubricatum, G. B. Sow., British Museum, " from 

 Australia ; " but in that the transverse stride are much less oblique, and the surface is " lubricate " 

 and polished. 



6. Dentalium entails, Linne. 



Dentalium entalis, Linne, Syst. Nat., 12th ed., p. 1263, No. 786. 

 Conch. Cab. Martini., vol. i. p. 26, pi. i. fig. 1. 

 „ Lamarck, Anim. s. vert., vol. v. p. 345, and (ed. Desk), vol. v. p. 595, sp. 13. 

 „ Wood, Ind. Test., p. 191, pL xxxviii. fig. 6. 

 ,, Deshayes, Die. Encyclop. method, vol. ii. (part 2), p. 78, sp. 18. 

 „ Forbes and Hanley, Brit. Moll, vol. ii. p. 449, pi. lvii. fig. 11. 

 „ Hanley, Ipsa Linn. Conch., pp. 437 and 548. 

 „ Sowerby, Thes. Conch., part 20, vol. hi. p. 97, sp. 1, pi. cexxv. (Generis iii.), figs. 



50-52. 

 „ Gwyn Jeffreys, Brit. Conch., vol. iii. p. 191, pi. v. fig. 1, vol. v. pi. lv. fig. 1. 



Searles Wood, Crag. Moll., Suppt. 1, Pal. Soc, 1871, p. 92, pi. v. fig. 20, Suppt. 2, 



Pal. Soc, 1873, p. 1S7, Addendum plate fig. 12. 

 „ Reeve, Conch. Icon., vol. xviii. pi. vi. fig. 40. 

 „ Gwyn Jeffreys, "Lightning" and "Porcupine" Moll., Proc. Zool. Soc. Lond., 



1882, p. 659, sp. 8. 



(l.) Dentalium entalis, var. striolatum, Stimpson. 



Dentalium entalis, var. /3, Loven, Index Moll. Scandin., p. 28, No. 215. 



Entalis striolata, Stimpson, Shells of New England, Proc. Bost. Soc. Nat. Hist., vol. iv. p. 114. 



Dentalium abyssorum, M. Sars, Fossile Dyrelevninger, Norge, fra Quartarperioden, p. 42, pi. iii. 



figs. 100-100. 

 Entalis striolata, Binney's Gould, Invert. Massachusetts, p. 266, fig. 528. 

 Dentalium abyssorum, Searles Wood, Crag. Moll., Suppt. 1, Pal. Soc, 1871, p. 93 (see vol. i. p. 189, 



pi. xx. fig. 2). 

 „ striolatum (Entalis), Gwyn Jeffreys, "Valorous" Report, Proc. Roy. Soc, 1876, voL xxv. 



p. 195, No. 25. 

 Antalis striolata, G. O. Sars, Moll. Arct. Norv., p. 101, pi. vii. fig. 1, pi. xx. fig. 10. 

 Dentalium striolatum, Gwyn Jeffreys, "Lightning" and "Porcupine" Moll, Proc. ZooL Soc. Lond, 



1882, p. 659, sp. 7. 



Station 49. May 20, 1873. Lat. 43° 3' N., long. 63° 39' W. Off Halifax, North 

 America. 85 fathoms. Stones ; gravel. Bottom temperature, 35°. 



