SIPHO TOGATUS. 181 



the same kind in raj own cabinet which I obtained many years ago at Butley. 

 Comparing these with some Pleistocene specimens from Gettinge in Helland that 

 Dr. 0yen had kindly sent me as representing the *S\ togatus of Morch, I found them 

 to correspond exactly, having on the other hand but little resemblance to the 

 various varieties of the forms I recognise as S. cnrtus. The former are rather 

 fi'agile, and strongly sculptured ; the latter are strong and solid with sculpture 

 relatively inconspicuous. 



S. togatus is now very generally regarded by conchologists as a distinct species, 

 and MM. Dautzenberg and Fischer^ are retaining the name in their description of 

 the molluscan fauna dredged by the Prince of Monaco ; it seems clear that in 

 Crag times also the shells here figured under that name differed materially from 

 those which Jeffreys called S. curtus. 



The Yoldia-claj of Gettinge from which the Scandinavian fossil here figured as 

 S. togatus (PI. XXII, fig. 2) was taken, represents in the opinion of Norwegian 

 geologists the melting of the last great Baltic glacier of Prof. James Geikie,^ and 

 the Mecklenburgian horizon of Germany. 



We find in the Crag, although rarely, some distinct forms which, though 

 differing from each other in certain respects, maintain more or less nearly the same 

 general character, especially as to their characteristic sculpture, which is that of the 

 typical S. togatus. These may be conveniently grouped with it, I think, as varieties 

 of that species. 



Var. crassa, nov. Plate XXII, fig. G. 



1882. Neptunea {Sipho) curta, var., Friele, Norske Nordh. Exped. (Mollusca), pt. i, pi. ii, fig. 1. 

 1887. Nephmea togata, Kobelt, Icon, schalentrag. europ. Meeresconch., vol. i, p. 80, pi. xiv, fig. 2. 



Dimensions. — L. 65 mm. B. 28 mm. 



Distribution. — Recent : Polar Seas. 



Fossil : Waltonian Crag : Little Oakley. 



BemarJcs. — The specimen figured under this name corresponds with one of Mr. 

 Friele's varieties of S. curtus. It appears to belong to the strongly sculptured 

 group of which I take the shell described above as the type. 



Prof. Kobelt reproduces Mr. Friele's figure of this variety as Nejjtu^iea togata. 



t) 



^ The specimens figured by MM. Dautzenberg and Fischer under the present name differ somewhat 

 in sculpture from our Crag shells, although otherwise they agree with them. 

 2 Great Ice Age, 3rd ed., p. 614, 1894. 



