45 



Page 



Pfeiffer, Dr. Louis {continued). 



Descriptions of Nineteen New Species of Ilellcea, 

 from the Collection of Hugh Cuming, Esq 1853, 124 



Descriptions of Forty-two New Species of Helix, 

 from the Collection of H. Cuming, Esq 1854, 49 



Descriptions of Four New Species of Bulimus, from 

 the Collection of II. Cuming, Esq 1854, 57 



Descriptions of Six New Species of Auriculacea, 

 from the Collection of H. Cuming, Esq 1854, 121 



Descriptions of Sixteen New Species of Helicea, 

 from the Collection of 11. Cuming, Esq 1854, 122 



Descriptions ofElevenNew Species oiCyclostomacea, 

 from the Collection of H. Cuming, Esq 1854, 126 



Descriptions of Twenty-three Species of Helicea, 

 from the Collection of H. Cuming, Esq 1854, 145 



Descriptions of Seven Species of Cyclostomacea and 

 Auriculacea, from Mr. Cuming's Collection 1854, 150 



Descriptions of Fifty-seven New Species of Helicea, 

 from Mr. Cuming's Collection 1854, 286 



Descriptions of Three New Species of Pythia .... 1854, 298 

 Descriptions of Eighteen New Species of CyclostO' 

 macea, from Mr. Cuming's Collection 1854, 299 



A Monograph of the Genera iZeaZz'a and i7y(?roce«a 1854, 304 



Descriptions of Twenty-seven New Species ofAcha- 

 tinella, from the Collection of H. Cuming, Esq., col- 

 lected by Dr. Newcomb and Mons. D. Frick in the 

 Sandwich Islands 1855, 1 



Descriptions of Nine New Species of Land Shells, 

 also from the Collection of Mr. Cuming 1855, 7 



Descriptions of Forty-seven New Species of Helicea, 

 from the same Collection 1855, 91 



Description of a New Genus and Twenty-three New 

 Species of PMeM7«o?eo/9o;«a, from the same Collection . 185.5, 101 



Descriptions of Nine New Species oi Helicea, from 

 the same Collection 1855, 106 



