BELEMNITES OF THE OOLITE. 103 
Proportions. The axis of the guard measures 600 to 750, the diameter being 100. 
Puraemocone. Indistinctly seen. 
Locality. Inferior Oolite, at Bradford Abbas (Buckman), Sherborne (Ozford 
Museum). 
BELEMNITES CANALICULATUS, Schlotheim. Pl. XXV, fig. 61. 
Reference. Belemnites canaliculatus, Schlotheim, ‘ Petref.,’ p. 49, No. 7, 1820. 
Hy D’Orb., * Terr. Jur., p. 108, pli sm, fies 1-2, 
1842. 
Guarp. Cylindro-conical, tapering uniformly to a somewhat sharp point. Ventral 
‘surface marked by a narrow deep groove along the whole length, so that even the point is 
hardly free from groove. 
Transverse section nearly circular, in var. a through the whole length, in var. 6 de- 
_ pressed in the post-alveolar region. 
Dimensions. Warge specimen 2 inches and ths, of which the axis occupies 1} inch, 
_ the diameter at the apex of alveolus being 0°4. 
Proportions. Axis 300, the diameter being 100. 
Locality. This fossil occurs in the lowest beds of Inferior Oolite at Bridport and 
Yeovil (Phillips), at Dundry (Sanders), Wotton-under-Edge (Phillips), and Leckhampton 
ill (Buckman). How much further north it is to be found I cannot say. It has not yet 
been seen at Stonesfield, or in the Oolites north of Oxford (which are mostly of the Great 
Oolite), nor have I seen it in Yorkshire. 
Observations. The specimens represented in Pl. XXV agree with the figure and 
description of D’Orbigny, except that they are not at all depressed in the post-alveolar 
region. ‘Thus two marked varieties arise. They are much shorter in proportion than 
B. Blainvillii, and by the continuity of the ventral sulcus are easily separated from B. 
apiciconus. 
BELEMNITES TERMINALIS, n. s. PI. XXV, fig. 62. 
Guarp. Elongate, lanceolate, or very slightly subhastate, depressed, tapering to an 
acute point ; ventral face grooved over the alveolar region, and over the post-alveolar tract 
to near the apex ; groove deep, narrow. 
Transverse section at the alveolar apex wider than long; still wider in proportion 
towards the apex ; axis nearer to the ventral face. 
Proportion of axis of guard to the ventro-dorsal diameter at the alveolar apex 550 to 
100. 
PuHracmoconr. Unknown. 
