140 AGARDHIA. 



place an equal distance inland. On low levels it is known 

 only as a Pleistocene (or possibly Holocene) fossil, or in 

 river drift; but Charles Hedley found it living in the Alpes- 

 Maritimes over 35 years ago. As a living mollusk it is prob- 

 ably restricted to the cooler, more humid zone of this range. 



Bourguignat had only fossil examples, and probably he 

 overlooked the sutural and basal folds, which could be seen 

 only by breaking the shell if they are present in the type. 

 In fresh shells they can be seen from the outside, shining 

 faintly through the shell, as in fig. 4 on pi. 17. All of the 

 lamella? and folds are immersed and hard to observe. The 

 color of living shells is cinnamon-buff. 



Coryna carta Locard came from a locality where A. blanci 

 is known to exist, and it will probably prove to be a short 

 form of that species. The size of the teeth and of the umbili- 

 cus, which distinguish blanci from ferrari, were not brought 

 out by Locard, whose description follows : 



Coryna carta Locard. Subcylindric, very short and squat, 

 tapering a little at the base ; 7 to 8 quite convex whorls, the 

 suture marked. Aperture trapezoidal, a. little receding towards 

 the base, somewhat channelled above ; with 1 robust, superior, 

 median and emerging fold, 1 equally stout, immersed colu- 

 mellar situated somewhat high, 3 palatals, of which a tuber- 

 cular one is on the peristome, and the others rudimentary and 

 very indistinctly visible. Peristome continuous, thick, a little 

 spreading. Shell corneous-red, ornamented with fine, close 

 rib stria?. Height 314 to 4, diam. 1% mm. Menton et Saint- 

 Martin-de-Lantosque, Alpes-Maritimes {Locard, Les Coquilles 

 terrestres de France, 1894, p. 326; Ann. Soc. d'Agric. etc. 

 (7),iii, p. 214). 



2a. A. blanci nicien sis (Poll). PI. 17, figs. 1, 2. 



Differs from the typical form by having the columellar lip 

 calloused, subdentate; 4 palatal folds. II Nizzardo; 2 speci- 

 mens in debris of the Varo (Pollonera) . 



Pollonera further says that the end teeth of the palatal 

 series are extremely small. The columellar callus is swollen, 

 almost forming a tooth opposite that of the outer lip. 



The specimens known may have floated down from a higher 

 elevation in the Alpes-Maritimes. 



