222 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
Haller, Bela. 
’94. Studien ii. docoglosse u. rhipidoglosse Prosobranchier. Pp. 173, 11 pi. 
Leipzig. 
Pelseneer, P. 
'91. Sur l’oeil de quelques gastropodes. Ann. de la soc. beige de rflicro- 
scopie, 1.16, pp. 59-76. 
Pilsbry, H. A. 
’91. On the use of the generic name Scutellina. Nautilus, vol. 5, pp. 88-89. 
Rathke, M. H. 
’33. Eschsclioltz’s zoologischer Atlas. Fiinftes Heft, herausgegeben von D. 
[sic] Martin Heinrich Rathke. Berlin. 
Sowerhy, James and George B. 
’20-’25. The genera of recent and fossil shells. 2 vols. London. 
Thiele, J. 
’92. Beitriige zur Kenntnis d. Mollusken. 2, U. d. Molluskenschale. Zeit- 
schr. wiss. zool., Bd. 55, pp. 220-251. 
Watson, Robert Bogg. 
‘86. Report on the Scaphopoda and Gasteropoda collected by H. M. S. Chal¬ 
lenger during the years 1873-1876. Challenger reports, vol. 15. Pp. 756, 
50 + 3 pi. 
Willcox, M. A. 
'98. Zur Anatomie von Acmaea fragilis Chemnitz. Jen. Zeitschr., Bd. 32, 
pp. 411-456, 3 pi. 
Printed April , 1900. 
