PROCEEDINGS COTTESWOLD CLUB 
1920 
256 
which is here 9 mm. wide, being interrupted by the edge of 
the slab. The extreme width of the pen is not shown, but 
half the width equals 34 mm. 
The British Museum collection [22580] contains a fairly 
well-preserved example from the Lias east of Bal, Wiirttemberg. 
The dorsal surface is exhibited, but only in part ; one portion, 
however, is well shown, this has a length of 105 mm., and its 
greatest breadth 25 mm., so that the full width of the pen 
must have been quite 50 mm. 
Explanation of Plate A. 
Geoteuthis agassizii, Deslongchamps. 
Horizon : “ Fish-bed.” Upper Lias [Whitbian]. 
Hemera : Exarati. 
Locality : Alderton Hill, Gloucestershire. 
Collection : Cheltenham Town Museum. 
Explanation of Plate B. 
Teuthopsis brunelii, Deslongchamps. 
Horizon : “ Fish-bed.’ Upper Lias [Whitbian], 
Hemera : Exarati. 
Locality : Alderton Hill, Gloucestershire. 
Collection : Cheltenham Town Museum. 
