G. C. Orick—Actinocamaz from the English Chalk. 395 
[=<Actinocamax granulatus|. Thus from the list of associated fossils 
it will be seen that this specimen occurs at the same horizon as 
Actinocamax Grossouvrer. 
Fic. 2.—AcTINOCAMAX sp. 
Upper Chalk (Senonian, zone of Wicraster cor-anguinum), Gravesend, Kent. 
(British Museum collection, register number C. 10576.) 
A.—Ventral aspect, showing one of the jagged saw-like cuts near the posterior end. 
B.—Dorsal aspect, showing the dorso-lateral grooves, and very imperfectly near the 
posterior end two jagged saw-like cuts on the right. There are a number of 
uregular sharply-incised lines on the left near the posterior end, but these 
do not appear in the Figure. 
C.—Letft lateral aspect. The irregular sharply-incised lines near the posterior end 
seen in this view are scarcely visible in the Figure. 
D.—Right lateral aspect, showing jagged saw-like cuts near the posterior end, two 
on the left and one on the right. 
E.—View of the truncated posterior end: d, dorsal; v, ventral. 
F.—Sectional view near alveolar end: d, dorsal; v, ventral. 
All the figures are of about the natural size. 
