176 PAGODULINA. 



This subspecies differs from P. subdola by its somewhat 

 more swollen, less strictly cylindric shape, the last whorl being 

 more compressed laterally over the palatal folds, and tapering 

 towards the base; by the shape of the columellar lamella, 

 which extends further out on the basal wall of the last whorl, 

 its position being indicated externally by a radial furrow in 

 the unbilical region ; also by the possession of six internal 

 laminae, 'the upper two (the suprapalatal fold and the outer 

 or " angular " lamella on the parietal wall) being additional 

 to the four laminae possessed by P. subdola and P. s. 

 sanremoensis. 



Perhaps this form deserves the rank of a species, but as yet 

 no long series has been examined to test the constancy of its 

 special characters. It appears to be a sub-Alpine form, ex- 

 tending from northeastern Lombardy to the Departement Var, 

 in France, whence it has been described by Dr. Sterki as P. 

 pagodula var. perplicata. It is unfortunate that this name 

 is later than that of Westerlund, for Sterki was the first and 

 only author hitherto who observed the peculiar internal feat- 

 ures of the race. 



While I suspect that the forms described as austeniana Nev- 

 ill, 1880, adamii Westerlund, 1887, and perplicata Sterki, 

 1894, belong to one and the same race, the final nomenclature 

 can not be settled until the interior of P. austeniana is in- 

 vestigated. 



The type lot (six specimens) of perplicata, with the original 

 label, "Fayence, Var, T. Berlier, 1899" is before me through 

 the courtesy of Dr. V. Sterki. The locality " Payence " 

 given in his original paper, was evidently a typographic error 

 or a misreading of the label. These specimens are now in 

 the Sterki collection of Pupillida? in the Carnegie Museum and 

 in coll. A. N. S. P. The sutural fold mentioned in the original 

 description is so slight that while it is faintly discernible ex- 

 ternally by transparence, in a suitable light, I could not see 

 it inside, in the shells opened. 



Sterki 's description of perplicata follows, with figures from 

 the type and paratypes, Plate 28, figs. 11 to 14. 



