Goniatites. 
MOLLUSCA. 
‘29 
Subglobose, the sides flattened, slightly striate trans¬ 
versely, with a few longitudinal striae, and internal slightly 
bent obscure ridges; umbilicus minute ; the septa delicately 
marked and undulous ; edge of the dorsal lobe very short; 
the dorsal sinuses sharp, and the first lateral lobe rounded. 
Distinguished from the G. striohrtus, by its more parallel 
sides. 
Discovered at Black Hall, Bolland, Queen’s County, 
Ireland. 
7 . G. nitidus.—T he Clear Goniatite, pi. XXI. fig. 13, 
14. 
Goniatites ntiufus . Phillips, Geology of Yorkshire, II. p. 
235, pi. 20, fig. 10 to 12. 
Subglobose; sides crossed, with slightly bent, prominent, fur¬ 
cate striae, and with obsolete spiral striae ; umbilicus wide and 
angular; aperture semilunar, and transversely elongate; septa 
irregular in form, with dorsal lobes simple, small, and large, 
acute lateral lobes. 
Discovered at Kibble River. 
8 . G. serpentinus. —The Serpentine Goniatite, pi. XXI. 
fig. 16, 17. 
Goniatites serpentinus. Phillips, Geology of Yorkshire, 
II. p. 237, ph 20, fig. 48 to 50. 
Discoidal, with three rapidly increasing, wholly exposed 
volutions; sides covered with transverse, delicate, bent striae; 
aperture almost circular, very slightly indented by the pre¬ 
ceding volutions; with three approximating, round-lobed 
septa; two round lateral sinuses, and a central acute dorsal 
sinus. 
Found at Bolland, Queen’s County, Ireland. 
9 . G. disco its.—The Discordant Goniatite, pi. XXI. fig. 
18 and 18.* 
Goniatites Gilbertsoni. Phillips, Geology of Yorkshire, 
II. p. 238, pi. 20. fig. 29, 30. 
Discoidal, smooth, sides with falcate, very minute striae; 
aperture oblong ovate ; septa numerous, with rounded lobes 
and sinuses; dorsal sinus wide and double, with a simple 
lateral sinus. 
This species differs from G. Gilbertsoni , fig. 2, in not being 
depressed, in the disk being more orbicular, and in the aper¬ 
ture being less indented by the volution. 
Found at Bolland, Queen’s County, Ireland. 
10 . G. cyclolobus. —The Round Lobed Goniatite, pi. 
XXI. fig. 19, 20. 
Goniatites cyclolobus . Phillips, Geology of Yorkshire, II. 
p. 237, pi. 20, fig. 40 to 42. 
Discoidal ; with three or four half exposed volutions, with 
their sides flattened; ambit broad and round; aperture 
oblong, its sides flat and rounded, its breadth two-thirds its 
length ; septa having four rounded lateral lobes, a small double 
dorsal lobe, and small pointed dorsal sinuses; first lateral 
sinus double, the next simple, and all of them rounded. 
Found at Glassington, Yorkshire. 
11 . G. mixolobos.—T he Mingling Lobed Goniatite, pi. 
XXI. fig. 21, 22. 
Goniatites mixolobus. Phillips, Geology of Yorkshire, 
II. p. 237, pi. 20. fig. 43 to 47. 
Discoidal ; with five rapidly enlarging volutions, the inner 
ones slightly concealed; septa with four rounded lateral 
lobes ; the first lateral sinus double and acute; the second 
single and pointed ; and the dorsal lobes and sinuses acute. 
Discovered at Bolland, Queen’s County, Ireland. 
12. G. Gibson i.—Gibson’s Goniatite, pi. XXI. fig. 23, 
24, 25. 
Goniatites Gibsoni . Phillips, Geology of Yorkshire, II. p. 
236. pi. 20, fig. 13 to 18. 
Discoidal, with five two-thirds concealed volutions, which 
are provided with bent, acute ribs ; these are prominent on 
the margin, and become furcate on the sides as they approach 
the ambit; and passing over the back meet with the furca¬ 
tions on the opposite side ; destitute of spiral strice, but the 
sides provided with a few curved constrictions. In the 
young state this species is somewhat flattened, with apparent 
volutions, but in older shells the volutions gradually become 
more involute and gibbous. Diameter, a quarter of an inch. 
Found at High-Green Wood. 
This curious fossil is not unlike some Ammonites of the 
Oolite formation. 
13. G. vesica. —The Bladder Goniatite, pi. XXI. fig. 26, 27. 
Goniatites vesica. Phillips, Geology of Yorkshire, II. p. 
236, pi. 20, fig. 19, 20, 21. 
Subglobular, umbilicate, with two volutions, the central 
one extremely small, the outer one very large; umbilicus 
much rounded ; sides transversely and delicately striate; 
undulations of the sepia low and rounded ; dorsal sinuses 
very shallow; aperture semilunar; thickness equal to two- 
thirds of the diameter. 
Found at Black Hall, in the Kulkeagh Shale, at Bolland. 
This species differs but little in its young and adult state. 
14. G. in ter costa Lis.—The Interribbed Goniatite, pi. 
XXL fig. 28, 29. 
Goniatites intercostalis. Phillips, Geology of Yorkshire, 
II. pi. 237, p. 20, fig. 61, 62. 
Discoidal, with three rapidly increasing volutions; sides 
crossed by claviform ribs, which emanate from the inner 
margin of the volutions, and extend about three-fourths 
across the sides; the whole shell with spiral intercostal striae ; 
ambit round, slightly produced in the centre ; aperture trans¬ 
versely elongated ; narrowed internally. 
Found at Bolland. 
15. G. noxiFORMis.—The Wheel Shaped Goniatite, pi. 
XXI. fig. 30, 31. 
Goniatites rotiformis. Phillips, Geology of Yorkshire, II. 
p. 237? pi. 20, fig. 56, 57? 58. 
Discoidal, carinatcd, with six half concealed angular volu¬ 
tions; ambit provided with a truncated carina; sides with 
transverse furrows, which are placed only on the centre of 
the volutions, and do not reach the sides. 
16. G. evolutds. —The Unfolded Goniatite, pi. XXL fig. 
32, 33. 
Goniatites cvohitus. Phillips, Geology of Yorkshire, II. 
p. 237, ph 20, fig. 65 to 68. 
Discoidal, umbilicate ; with three apparent rapidly increas¬ 
ing volutions; aperture oblong, with rounded angles; septa 
with a deep and acute dorsal sinus ; the first lateral lobe 
obtuse and angulated. 
In the young condition, the section of the volutions is 
round, and oblong in the adult state. 
Found at Flasby. 
17. G. Listeri. —Lister’s Goniatite, pi. XXI. fig. 34. 
Goniatites Listeri . Phillips, Geology of Yorkshire, II. p. 
235, pi. 20, fig. 1. 
Spheroidal, umbilicate ; the inner volutions concealed by 
the outer one, and their edges only being visible within the 
H 
