LOWER LIAS : DORSETSHIRE FOSSILS. 71 
often (bund associated with lignite, was thought by Buckland to 
have attached itself in large groups to mas.-es of floating wood.* 
Of the Mollusca, attention has been drawn to the prevalent 
forms, but it may be mentioned that many of t : ic species figured 
by Sowerby were obtained from Lyme Regis a-id the neighbour- 
hood. Among these were A. Bechci (named ai'tci IX- la Beche), 
A. Birchii (after Col. Birch, a great frequenter of Lyme\ A. 
Brookei (after H. J. Brooke), A. Dactsi (ifier S:r II. Davy),<- 
A. Hcnleyi (after H. II. Henley, the Lord of the Manor), and 
A. Loscombei (after C. W. Loscombe), together with A. firnbriatus, 
A. latcecosta, A. stellaris, and A. striattis. 
Among the Belemnites it may be mentioned tint Belemnosepia 
(Geoteuthis) was described by Auckland in 18:56. Ten years 
previously he had obtained specimens exhibiting remnants of 
fossil ink, samples of which were submitted to Sir Francis Chantrey, 
who had a drawing prepared with the material. t The sepia was 
pronounced to be of excellent quality. Remain-- of Xiphoteuthis 
have also been obtained, and Prof. Huxley hai described two 
species of Belemnites B, clongatas and B. paxillosus with the 
ink-bags preserved. The latter species was obtained from the 
zone of Ammonites obtutus.% 
Gasteropoda are by no means abundant at Lyme Regis, but they 
are more plentiful east of Charmoiith. No Polyzoa have been 
recorded, and Corals are extremely rare Some lew plant-remains 
have been found ; these belong to the genera Pachyphyllum 
(Araucaritcs) and Otozamites (Otopteris). In the hall of the 
Museum of Practical Geology, there is exhibited a trunk of 
Pachyphyllum (Araiicarites) peregrinum, nearly 13 feet in length ; 
and preserved in the rock with it is a specimen of Ammonites 
armatus. 
Lyell figured, from the Losver Lias of Lyme Regis, a specimen 
of lignite that contained the impression of an Ammonite. 
Two examples of Cycadenn stems have also been recorded 
from the "Lias "of Lyme Regis, under the names of Yatesia 
gracilis and Mantcllia (Ct/cadeoidca) pyym(Ba,\\ 
The conclusions to be drawn from the beJs seen in the cliffs 
of Lyme Regis and Charmouth are that we find in upward 
succession, beds yielding Ammonites phrtwrbis, A. angulatus, A. 
Bucklandi, A. semicostatus and A. Tnrncri, A. obtusus, A. 
oxynotus, A. raricostatus, A. armatus, A. Hcnleyi, and A capri- 
cornus, (represented chiefly by A. latcecosta). We find a blending 
of the zones of A. angulatus and A. Bucklandi, of A. semicos- 
tatus and A. oltusus, of A. raricostatus and A. armatus. 
Following the beds across country we find the same general 
succession maintained, and similar evidences of the association of 
zonal species which link the strata intimately together, without' 
* Bridgewater Treatise, 183C, p. 437. 
t Bridgewatev Treatise, 1836, p. 305 ; Proc. Geol., Soc. vol. i. p. 97. 
J Monograph on the Belemnitidse (Geol. Survey), 1S04. 
Elements of Geology, 1838, p. 399. 
|j Carriithers, Trans. Linn. Soc., vol. xxvi., pp. 689, 703. 
