[1021J 
VIII. Mollusca. 
Moll. 7 
117. — Colosi, G. Diagnosi di Vaginu- 
lidi (Gasteropodi terrestri). Atti Soc. 
Ital. Sc. Nat. Pavia 60 1921 pp. 1-7 
[? Original pagination]. 
118. — Colosi, G. Sul sistema dei 
gasteropodi. Boll. Mus. Zool. Anat. 
comp. Torino 36 1921 pp. 1-7. 
119. — Colosi, G. La realizzazione 
delle forme nel sistema dei gasteropodi. 
Natura Milano 12 1921 pp. 41-49. 
120. — Cooke, A. H. Evolution in the 
molluscan radula. J. Conch. Leeds 16 
1921 pp. 146-160. 
Cooke, C. M. vide Pilsbry, H. A. 
121. — Cooke, C. W. New names for 
West Indian Tertiary Pec tens. Nautilus 
Boston Mass. 34 1921 p. 137. 
122. — Cooke, C. W. Ortliaulax, a 
Tertiary Guide Fossil. Prof. Paprs. 
U.S. Geol. Surv. Washington 129-B 
1921 pp. 23-37 4 pis. 
122a. — Cossmann, M. Un gastropode 
du Bajocien de Dampierre (M.-et-M.). 
Compte-Rendu soc. geol. France Paris 
1920 1920 p. 100. 
122b. — Cossmann, M. Rectifications 
de nomenclature. Pvev. crit. paleozool. 
Paris 25 1921 pp. 79-80. 
122c. — Cossmann, M. Essais de 
Pal^oconchologie oomparee. Onzicme 
livraison. Ouvrage couron<$ par 
l’Academie des Sciences (Prix Fon- 
taines, 1911). (\ Paris, chez l’auteur 
1918 1918 pp. 1-388 11 pis. 
Cossmann, M. vide Lambert. 
123. — Couffon, O. Deuxifcme note 
sur le calcaire du Grip. Bull. Soc. 
Etude Sci. Angers N.S. 50 1920 (1921) 
pp. 19-27. 
123a. — Couffon, O. Sur la faune du 
Gothlandien de la Meignane pres 
d’ Angers (Maine-et-Loire). Bull. soc. 
geol. Paris 18 1918 (1919) pp. 214-16. 
124. — Cousin, G. Sur les variations 
individuelles de Psiloceras planorbis 
Sow. C. R. Acad. Sci. Paris 172 1921 
pp. 1369-1372. 
125. — Crick, G. C. On Nautilus 
pseudo tr uncat us n. sp., from the Liassic 
rocks of England. Proc. Cotteswold Cl. 
20 1921 pp. 245-247. 
126. — Crick, G. C. On some dibran- 
chiate Cephalopoda from the upper 
Lias of Gloucestershire. Proc. Cottes- 
wold Cl. 20 1921 pp. 249-256 pis. A 
and B. 
127. — Crozier, W. .J. Notes on some 
problems of adaptation : 5. The photo- 
tropism of Lenia. Biol. Bull. Wood’s 
Holl Mass. 41 1921 pp. 102-105. 
128. — Currie, E. D. Fossils from 
Western Persia. Geol. Mag. London 
58 1921 pp. 529-537. 
128a.— Dalimier, H. Note sur une 
Neritine des sables coquillieres eocenes 
de la Close-en-Campbon (Loire-In- 
ferieure). Compte-Rendu soc. geol. 
France Paris 1917 1917 p. 63. 
129. — Dali, W. H. A new Chiton 
from Southern Brazil. Nautilus Boston 
Mass. 35 1921 pp. 4-5. 
130. — Dali, W. H. Summary of the 
marine shell-bearing mollusks of the 
Northwest Coast of America from San 
Diego, California, to the Polar Sea, 
mostly contained in the collection of the 
United States National Museum with 
illustrations of hitherto unfigured 
species. U.S. Nation. Mus. Bull. 
Washington D.C. 112 1921 pp. 1-217 
pis. i-xxi. 
131. — Dali, W. II. Two new pliocene 
Peotens from Nome, Alaska. Nautilus 
Boston Mass. 34 1921 pp. 76-77. 
132. — Dali, W. II. Species named 
in the Portland Catalogue : I, American. 
Nautilus Boston Mass. 34 1921 pp. 97- 
100 . 
133. : — Dali, W.'H. Nomenclatorial 
notes. Nautilus Boston Mass. 35 1921 
pp. 49-50. 
134. — Dali, W. H. Molluscan species 
named in the Portland Catalogue, 
1786, Part ii, foreign species. Nautilus 
Boston Mass. 34 1921 pp. 124-132. 
135. — Dali, W. H. New Fossil 
invertebrates from San Quentin Bay, 
Lower California. West American 
Scientist 19 1921 pp. 17-18. 
136. — Dali, W. H. New shells from 
the Pliocene or early Pleistocene of 
San Quentin Bay, Lower California. 
West American Scientist 19 1921 
pp. 21-23. 
