225 
Genera and Species. 
Avicula Kazanensis . 
■ sencea 
• inflata 
— Binneyi . 
— discors ... 
Gervillia 
— ? tumida 
ind. spec. 
Pecten 
— pusillus... 
1 
1 
— Koksharofi ... 
— indet. species 
Spondylus 
— Goldfussii 
Ostrea 
— matercula . 
? pusilla.... 
MOLLUSCA. 
Gasteropoda. 
Melania 
— several ind. spec. . 
Natica 
minima 
— ind. spec. ... 
Euomphalus ... 
— planorbites 
Pleurotomaria 
— carinata ... 
— penea ... 
— nodulosa 
1 
Trochus 
— antrinus 
— lielicina.. 
Turbo 
— Mancuniensis 
— minutus ...... 
— ind. spec. 
Macrocheilus ... 
symmetricus 
Loxonema 
— rugifera 
— ? Urei . 
Turritella ... 
— biarmica 
Murchisonia .... 
subangulata . 
Rissoa 
— pusilla 
— Leighii 
— minutissima . 
— Gibsoni 
— obtusa 
Pal^ozoicSystems, 
Authors and References. 
nob., posted, pt. iii 
nob., posted, pt. iii 
Brown, Manch. Trans, vol. i. p. 65. pi. 6. 
f. 25, 26. 
id. ibid. pi. 6. f. 27 
id. ibid. pi. 6. f. 28 
Defr. 
King (MS.) 
Gein. N. Jahrb. 1841, p. 639. pi. 11. f. 2. 
Linn. 
Pleuronectes pusillus, Schl. Miin. Ak 
vi. pi. 6. f. 6. ; Lima pusilla, Quenst 
Wieg. Arch. 1835, p. 81. 
nob., posted, pt. iii 
Sow. Geol. Trans. 2nd series, iii. p. 120 
Lam. 
Miinst. 1839, Beitr. heft 2. p. 44. pi. 4 
f. 3 ; Gein. Gasa von Sachsen, p. 96. 
Linn. 
nob., posted., pt. iii 
King (MS.) 
Sil. Dev. Carb. Perm, 
Lam. 
Phill. (MS.) Geol. Tr. 2 nd s. vol. iii. 118 
Adanson. 
Brown, Manchester Trans, vol. i. pi. 6 
f. 22, 23, 24. 
Allied to the preceding 
Sow. 
Miinst. (Collect, of Dr. Schmidt at Jena) ; 
Gein. Gaea v. Sachsen, p. 94. 
Defr. 
Phill. G. Yorks, ii. pi. 15. f. 1. ; Helix 
id. Sow. Min. Conch, pi. 10. 
nob., posted, pt. iii 
King (MS.). 
Linn. 
Schl. Miin. Ak. pi. 7. f. 6. (Trochilites) . 
Trochil.helic. Schl . ; Quenst. Wiegm . A rch 
1835 ; Turbo hel. Gein. Jahrb. 1841, p. 
638; Troch. id. Gein. Gaea v. Sach.95. 
Linn. 
Brown, Manch. Tr. vol. i. pi. 6. f.l, 2, 3. 
Brown, ibid. pi. 6. f. 4, 5 
Gein. Gaea v. Sachsen, p. 95 
Phill. 
King (MS.) 
Phill. 
Phill. Pal. Foss. pi. 38. f. 188 ; Melania, 
id. Pli. Geol. Yorks., ii. pi. 16. f. 26 
Turritella Urei, Flem. Brit. Anim. p. 305. 
Ure Ruth. pi. 14. f. 7. 
Lam. 
Kutorga, Verh. M. G. St. Petersb. 1842, 
p. 28. pi. 6. f. 3. 
D’Arch.etDeV.,Bul.S.G.deFr.xii.p.l54. 
nob., posted, pt. iii 
Frdminville. 
Brown, Manchester Trans, vol. i. p. 63 
pi. G.f. 6, 7,8. 
Brown.Man.Tr vol.i.p.63.pl.6.f.9, 10,11 
id. ib. pi. 6. f. 12, 13, 14 
id. ib. pi. 6. f. 15, 16, 17 
id. ib. pi. 6. f. 19, 20, 21 
E. 
R. 
R. 
E. 
E. 
E. 
E. 
E. 
E. 
R. 
E. 
E. 
R. 
E. 
E. 
E. 
R. 
E. 
E. 
R. 
E. 
E. 
E. 
E. 
E. 
E. 
E ? 
E.? 
R. 
R. 
E. 
E. 
E. 
E. 
E. 
Ustlon near Kazan, Sergiesk . . 
Ustlon near Kazan, Arzamas. 
Newtown near Manchester. 
ibid. 
ibid. 
Localities. 
Observations. 
Allied to A. spe- 
luncaria. 
Humbleton. 
Altenburg, Sommeritz, etc. 
Gliicksbrunn, Humbleton. 
Shidrova. 
Humbleton. 
Ropsen near Gera ; Corbusen. 
Itschalki 
Coast between Shields and Sun 
derland. 
Hawthorn hive, Durham. 
Newtown, Humbleton. 
ItschalJci, Ilchegulova. 
Kamsdorf. 
When we dis- 
covered it, this 
Ostrea was the 
most ancient ex 
ample known of 
the genus ; but 
whilst we write, 
M. de Koninck 
has discovered 
another species 
in the Carboni- 
ferous limestone 
of Belgium. 
Settle, Yorkshire ; Castlelsl., Ire- 
land, C.; Humbleton,P.(Kiog). 
Arzamas, Kliutziski, Meteftamak 
on the Dioma. 
Humbleton. 
Gliicksbrunn 
ibid., Altenburg. 
This shell seems 
to be a Pleuro- 
tomaria. 
Newtown, Humbleton. 
Newtown. 
Saara, Zehma, Sommeritz near 
Altenburg. 
Humbleton. 
Brushford, D.; Otterbum, Valdai, 
C.; Humbleton? (KingMS.).P. 
Lanarks C. ; Humbleton ? (King 
MS.), P. 
District of Bielebei, Itschalki. 
Itschalki, Arzamas, Kliutziski . 
Tchistopol, Nikefur. 
Newtown near Manchester. 
Newtown near Manchester. 
ibid. 
ibid. 
ibid. Silksworth, Co. of Durham, 
Small and coni, 
cal. 
