DESCRIPTION OF THE FOSSILS. 
203 
t. 17, appears to be the same. Goldfuss has the same name for a different species. I 
have therefore adopted Dr. Fleming’s name. (Org. Rem. vi. 8.) 
L. longiconicum. Ph. PI. II. fig. 18. Kulkeagli mountain; Flo- 
rence Court. 
External tube smooth (unless decorticated) ; transversely striated. Lamellae 64, 
alternately longer and shorter, acute. Forms immense masses. 
L. sociale. Ph. PI. II. fig. 19- Settle. 
Tubes often adherent ; equally striated ; transversely undulated ; | inch diam. ; 
lamellae 64, alternately longer and shorter for a space round the axis, which is oval ; 
dissepiments regularly concentric. (Martin’s figure of M. duplicata has some analogy 
with this.) (Org. Rem. vi. 9.) 
Tuubinolia fungites. Auct. PI. II. fig. 23. Bolland ; Ribble head ; 
Penyghent ; Bowes ; Hawes ; Coverdale ; Brough ; Ash fell ; Orton ; 
Northumberland; Durham; Derbyshire; Bristol; (Florence Court; 
Stradone ; Ireland.) 
When young obliquely conical ; with age growing bent, undulated and elongate ; 
surface striated ; star concave ; a central excavated umbo ; lamella; about 120 (but 
fewer when young) the marginal ones very short, toward the centre discontinuous when 
old. (Org. Rem. PI. iv. fig. 8, 13, 14.) It occurs in almost every bed in the whole 
limestone series. 
Amplexus Sowerbii. Ph. PI. II. fig. 24. Bolland ; Kettlewell ; 
Menai Bridge ; Isle of Man ; Ireland, &c. 
Cylindrical, external tube longitudinally and transversely striated ; septa regular, 
equidistant, plane (one nearly central depression), with crenulated edges. The tube is 
like a shell, its longitudinal strife correspond to the number of the lamellae, half this 
number appears on the cast of the interior. The interseptal spaces resemble the cavities 
of an orthoceras, — but it is truly a lamelliferous coral, without central axis. (Amplexus 
coralloides Sow.) 
CRINOIDEA. 
Though there are many things in Mr. Miller’s arrangement and 
nomenclature of crinoidea which require correction, the following short 
descriptions are framed to agree with his system, as far as possible. 
Mr. Gilbertson’s rich collection is the source from which almost all 
my drawings and examinations have been taken. In the distinction 
of species there is great difficulty ; it is almost impossible to refer 
all the columns to their corresponding bodies : the variations depending 
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