30 THK NAUTILUS. 



(1) That the French title-page reads "Lea Figurea", &c., 

 instead of "Des P^'igures", as in that copy. 



(2) There are two plates numbered "30—1" and "30—2" 

 giving an upper and under view of the shell figured, and two 

 numbered "72—1" and "72—2". The written index states 

 that "72—2" is a variety of "72—1". 



(3) Plates 43 and 59 have two views of the shell as in 

 the Henderson copy, but plate 57 has only one figure as in the 

 National Museum copy. The figures on plates 61 and 63 are 

 also arranged as in the Henderson copy. 



Volumes III and IV have no separate title-pages, simply the 

 engraved explanatory tables. These tables agree with those 

 (luoted by Dr. Dall from the Sydney copy except that the 

 generic name is frequently omitted in the second column, 

 usually from lack of room when a varietal name was given. 



The first species on plate 109 is given as "Peliis Armeni- 

 <ina" and not Arminiana. 



Plate 129 is indexed as ( Voluta) "Aplustre Ducis Navalis". 



The second species on plate 135 is given as "Denrachates". 



The first species on plate 137 is indexed as "Caelata". 



Plate 143 is given as (Cochlea) "Albida". 



Plate 154 is given as "Ostrea Echinata". 



The first species on plate 156 is indexed as "Tellina cin- 

 namea". 



There are forty-three plates in volume III. 



Plate "88 is a costate shell and would seem to agree with the 

 name given in the engraved index. Plate 88* is a smooth 

 shell. No specific names are given for either species in the 

 written index. 



Plate 115 is duplicated. The first plate contains two fig- 

 ures of the typical form of Amphidramus axirens (Martyn) 

 corresponding to those given in the Manual of Conchology, 

 XIII, pi. 54, figs. 70 and 71. The front view is of a sinistral 

 specimen, the back view is from a dextral one. The second 

 plate gives two views of a dextral specimen of the unstriped 

 form corresponding to fig. 72 of the plate in the Manual of 

 •Conchologj'. 



Plate 116 is also duplicated and represents two color forms 



