TITLES. Moll. 27 
476. [Pelseneer, P.] La forme archaique des Pteropodes Thecosomes. 
C.R. Ac. Sci. cxxxix, pp. 546-548. 
477. Perner, J. Gasteropodes. Tom. i {Patellidie ct Belleraphontidce). 
In Syst. Silurien Boheme, 1903, 164 pp., 89 pis. 
Owing to the misleading title the recorder did not detect last year that 
many of the plates bore no relation to the text, and that the 
' explanations ' of these plates contained a number of names with 
' n. g.' added. These are now inserted as accurately as the recorder 
is enabled to do. 
Pervinquiere, — . [See Flick & Pervinquiere (229).] 
478. Petch, T. The published records of the Land and Freshwater 
Mollusca of the East Riding, with additions. Tr. Hull Club iii, 
pp. 121-172. 
479. Petersen, H, Die Conchylien-Fauna des Nieder-Elbegebiets. 
Verh. Ver. Hamburg Unterh. xii, pp. 60-89. 
480. Petitclerc, P. Note sur Y Ammonites {Oppelia) haylei Goquand, 
de rOxfordien inferieur des environs de Besan9on (Doubs). Feuille 
Natural. 1904, xxxiv, pp. 109-112, 129-133, pis. v & vi. 
481. Petrascheck, W. tjber die jungsten Schichten der Kreide Sachsens. 
SB. Ges. Isis 1904, pp. 3-10. 
482. Pettit, a. Oedeme experimental chez le Poulpe {Octopus vulgaris 
Lam.) Bull. Mus. Paris ix, pp. 284 & 285, fig. 
483. Peyrot, a. Fossiles du Redonien d'lUe-et-Vilaine. Feuille Natural. 
1904, xxxiv, pp. 237 & 238. 
484. Philipp, H. Palaoutologisch-geologische Untersuchungen aus dem 
Gebiet von Predazzo. Zeitschr. Deutsch. geol. Ges. Ivi, pp. 1-98, 
pis. i-vi, figg. 
485. PiCARD, E. Beitrag zur Kenntniss der Glossophoren der mittel- 
deutschen Trias. Jahrb. geol. Landesanst. Berlin xxii, pp. 445-540, 
pis. ix-xiv. 
486. PiLSBRY, H. A. A new Floridian Amnicola. Nautilus xvii, pp. 113 
& 114. 
487. . A new subspecies of Polygyra tridentata. T. c. pp. 142 
& 143. 
488. . Plectopylis in the Riukiu Islands. Op. cit. xviii, pp. 58 
& 59. 
489. . A new Lower Californian Sonorella. T. c. p. 59. 
490. . New species of Buccinum from the Kuril Islands. T. c. 
pp. 87 & 88. 
491. . New land snails from North Carolina. T. c. pp. 89 & 90. 
492. . New Japanese Marine Mollusca : Gastropoda. P. Ac. Philad. 
1904, pp. 3-37, pis. i-vi. 
493. . New Japanese Marine Mollusca : Pelecypoda. T. c. pp. 550- 
561, pis. xxxix-xli. 
494. . New Clausiliidce of the Japanese Empire, x. T. c. pp. 809- 
838, pis. lii-lvii [? 1905]. 
495. & Hirase, Y. Descriptions of new Japanese Land Shells. 
Nautilus xvii, pp. 104-107, 116-119. 
