30 
The Shell-Collector’s Handbook. 
a Lamellibranch to a book whose back is represented by 
the hinge-line, its cover by the valves, its fly-leaves 
by the mantle-lobes, its second and third pages at 
each side by the gill lamelle, and its interior by the 
visceral mass and foot. The aptness of this compari- 
son will now be very readily conceived by the reader. 
LITERATURE. 
(In this list the general text-books noticed on pages 
Bojanus. 
Braun. 
Davaine. 
Deshayes. 
Garner. 
Leydig. 
Lovén. 
Schmidt. 
Stepanoff. 
16 to 20 have not been included.) ~ 
“Ueber die Anthem-und Kreislaufwerk, 
zenge der zweischaligen Muscheln.” 
Isis, 1819, 1820, 1827. 
“ Postembryonale Entwicklung. d. Siiss- 
wasser Muscheln.” Zoologischer Garten. 
“Sur le génération des Huitres.” Paris, 
1853. 
“ Art. Conchifera,” in Todd’s Encyclo- 
pedia, Vol. I., 1836. 
“On the Anatomy of the Lamelli- 
branchiate Conchifera.” Trans. Zool. 
Soc., London, Vol. II., 1841. 
“ Ueber Cyclas cornea.” Miiller’s Archiv, 
1855. 
“ Bidrag til Kinned.om Utweckl. af Moll. 
Acephala Lammellibr.” Kongl. Veten- 
skaps-Akad.  Handl., Stockholm, 
1848-1850. , 
“ Ueb. d. Entwick. von Cyclas calyculata.” 
Miiller’s Archiv, 1854. 
“ Ueb. die Geschlechtsorgane u. die Ent- 
wicklung von Cyclas,’ Archiv (ff. 
Naturgeschichte, 1865. 
