BELEMNITES OF THE LIAS. 89 
of such a species as B. Voltzii. It merits, however, a careful description, as all the very 
young Belemnites do. 
BELEMNITES MINUTUS, n.s. (Diagram, No. 24, v’, v’, v'”.) 
Guarp. Short conical, straight, acute, with two faint latero-dorsal grooves, and an 
obscure trace of ventral depression towards the apex. 
Dimensions. From } to } and (apparently the same species) ? inch long. 
Locality. Upper Lias, Iminster. 
Remarks. It is possible that, by further research, older forms may be identified with 
these almost microscopical specimens of Mr. Moore’s acuteness and industry.  ‘lhey 
cannot be the young of B. L/minstrensis, but rather should be referred to a form such as 
B. Voltzit. 
In the same collection are specimens from the Upper Lias of Ilminster of a slender 
Belemnite, agreeing in general with B. guadricanaliculatus, but differing in the striation 
and some other points of interest, as will appear by the following description, in which 
it is regarded as a variety. Specimens of the ordinary type occur with it.* 
BELEMNITES QUADRICANALICULATUS, var. oBsoLETUS. (Diagram, No. 25, v, 0", v’, 4, 7.) 
Guarp. Long slender conical, often a little bent, marked by a conspicuous double- 
striated ventral groove, extending over part of the alveolar region; strive and traces of 
dorsal grooves near the apex, which is always found truncated. 
Dimensions. Under 1 inch in length. 
Locality. Upper Lias, Ilminster. 
DIAGRAM 25. 
v'. Ventral face, full size. v”. The same, smaller. v’’. Magnified view of the ventral striz. /. Lateral, d. dorsal. 
* In the description of B. guadricanaliculatus, p. 68, the dorsal groove is said to be sometimes double. 
I find, also, the ventral groove double in several examples. 
