[1]. A framed series of photographs, illustrating different kinds of radulæ, is placed on the east wall of the gallery.
[2]. From Woodward’s ‘Manual of the Mollusca,’ published by Lockwood & Son.
[3]. From ‘The Cambridge Natural History,’ Messrs. Macmillan & Co.
[4]. From the Greek: pteron, wing, and pous, foot.
[5]. From the Greek: scaphe, a small boat, and pous, a foot—the foot of some Scaphopods being somewhat pointed like the prow of a vessel.
[6]. The term Lamellibranchia is used instead of Pelecypoda in deference to the wish of Professor Lankester.—E. A. S.
[7]. From the ‘Encyclopædia Britannica.’ Messrs. A. & C. Black.
[8]. From ‘The Cambridge Natural History.’ Messrs. Macmillan & Co.
[9]. From the Greek: kephale, head, and pous, foot.
[10]. Zoon, animal; oikos, house.