5 Brack. 
Systematic. 
2031 
f j Dielasma, darvasicum p. 6, edelsteini 
p. 7, spp. n. Darvas Permo-Carbon, 
Tschernyschew. Mem. Com. geol. 104. 
f Dielasma bilobatum sp. n. Arkansas 
Carboniferous, Mather Bull. Sci Lab. 
Denison Univ. 18 1915 p. 179. 
Diestothyris gen. n. type Tcrcbratula 
frontalis , Thomson Geol. Mag. 3 p. 
504. 
f Discina alsatica, amalthei Germany 
p. 35, infraoolithica England and 
Germany p. 37, spp. n. Jurassic, 
Rollier M6m. Soc. Pal. Suisse 41 No. 2. 
f dirty clla (?) cmarginala sp. n. 
Arkansas Carboniferous, Mather Bull. 
Sci. Lab. Denison Univ. 18 1915 p. 180. 
f Ilemiptychina uralica sp. n. Ural 
carboniferous, Fredericks Kazan! 
Trd. Obsc. jest. 47 No. 5 p. 27. 
f Hemipty china darvasica p. 9, 
bulcharica p. 10, spp. n. Darvas Permo- 
Carbon, Tschernyschew (346) Mem. 
Com. geol. 104. 
f Hustedia brentwoodensis p. 195, miseri 
p. 196, spp. n. Arkansas Carboniferous, 
Mather Bull. Sci. Lab. Denison Univ. 
18 1915. 
f Keyserlingina darvasica sp. n. 
Schwagerinen-Horizont vom Darvas, 
Tschernyschew Mem. Com. geol. 
104 p. 13. 
f Ltiorhynchus dunbarensc p. 38, 
madisoncnsc with var. gibbosum p. 39, 
jeffersonen^e p. 41 spp. n. utahense var. 
n. ventricosum p.40, Montana Devonian , 
Haynes Ann. Carnegie Mus. 10 
} Ltiorhynchus pauciplicatus sp. n. 
Nordost Sibirien Devon, Tolmatschow 
Mem. Soc. mineral 50 pp. 35 and 61. 
f Lingula minuscula sp. n. Maine 
Silurian, Williams & Breger U.S. 
Geol. Surv. Prof. Paper 89 p. 20. 
f Lingula hubbardi sp. n. Montana 
Devonian, Haynes Ann. Carnegie 
Mus. 10 p. 30. 
j- Lingula broolcvillensis sp. n. Indiana 
Silurian, Foerste Bull. Denison Univ. 
18 p. 308. 
Liothyrclla gen. n. type Tcrcbratula 
uva Brod., Thomson Trans. N.Z. Inst. 
48 p. 44. 
f Murravia gen. n. type Terebratulina 
davidsoni, Etli., Thomson Trans. N. 
Z. Inst. 48 p. 46. 
f Notothyris bulcharica. sp. n. Darvas 
Schwagerinen-Horizont , Tsciierny- 
schew Mem. Com. geol. 104 p. 12. 
f Orbiculoidea minuta sp. n. Arkansas 
Carboniferous, Mather Bull. Sci. Lab. 
Denison Univ. 18 1915 p. 141. 
f Proboscidella darvasica sp. n. Darvas 
Schwagerinen-Horizont. Tscherny- 
schew M6m. Com. geol. 104 p. 32. 
f Productella curvata sp. n. Nordost- 
Sibirien Devon, Tolmatschow Mem. 
Soc. mineral 50 p. 42. 
^Productus viorrowcnsis p. 152, 
wcllcri p. 165, faycltcvillcnsis p. 163 
spp. n. Arkansas Carboniferous, Mather 
Bull. Sob. Lab. Denison Univ. 18 1915. 
f Productus giganteus, Bogoliubov, 
2 . 
f Productus longispinus var. n, minor 
Akentjev, 1. 
f Productus darvasicus sp. n. Darvas 
Schwagerinen-Horizont, Tscherny- 
schew Mem. Com. geol. 104 p. 31. 
f Productus erebus sp. n. Ural carboni- 
ferous, Fredericks Kazani Trd. Obsc. 
jest. 47 No. 5 p. 29. 
■j Pugnoides triangularis sp. n. Arkan- 
sas Carboniferous, Mather Bull. Sci. 
Lab. Denison Univ. 18 1915 p. 175. 
f Pustula globosa p. 167, sublincata p. 
168, bullata p. 174 spp. n. Arkansas 
Carboniforous, Mather Bull. Sci. Lab. 
Denison Univ. 18 1915. 
f Reticularia Synonymie, diagnose, 
distribution, Frederiks 11. 
\Rhipidomella grandis sp. n. Nordost- 
Sibirien Devon, Tolmatschow Mem. 
Soc. mineral 50 p. 39. 
\Rhipidomella altirostris sp. n. Arkan- 
sas Carboniferous, Mather Bull. Sci. 
Lab. Denison Univ. 18 1915 p. 143. 
f Rhynchonclla edelsteini sp. n. Darvas 
Schwagerinen-Horizont, Tscherny- 
schew M6m. Com. geol. 104 p. 14. 
\Rhynchonella figarii sp. n. Arabia 
Jurrassic, Greco Bull. Soc. geol. ital. 
34 1915 p. 523. 
\Rhynchopora magnicosla sp. n. Ar- 
kansas Carboniferous, Mather Bull. 
Sci. Lab. Denison Univ. 18 1915 p. 176. 
\Rhynchopora lobiensis sp. n. Devon 
der Kolyma, Tolmatschow M6m. Soc. 
mineral 50 pp. 34 and 51. 
