interest for the eonchological world, and ns many of them were 
entirely new to Mr. Bland, it may well be imagined how 
eagerly he set to work on their examination. The shells that 
first attracted him were some Pupas known here as the Pupa 
palanga, (Lesson) and on dissecting the animals he found 
reason to believe that they did not belong to the genus Pupa, 
and instead of being vegetable eaters, he distinctly proved 
them carnivorous. He forwarded the results of his observa- 
tions to Prance, and he has kindly favoured me with some 
notes on them made by Messrs. II. Cross and P. Fischer in 
the Journal cle Gonchyologle 3rd Series, Vol. 9, No. 3, p. 213, 
July 1869, from which I take the following extracts : — 
“ They write thus, “ One of our honourable correspondents 
Mr. Thomas Bland of New York, having recently received 
some specimens of a species of land mollusc common in the 
Isle of Mauritius, the Pupa palanga (Lessou) and having been 
fortunate enough to extract from one of them the radula or 
lingual ribbon, has communicated to us the results. -He in- 
forms us that during his examination of the animal he was 
greatly surprised, at first, at not finding any trace of jaws, and 
at length he discovered that the lingual ribbon of this species 
in no particular resembled that of the ordinary species of 
Pupa , but that it appoachod rather those of the Testacella by 
the form of its teeth, We here give the results of the closo 
examination we have given to the radula in question. 
“ In the Pupa palanga, the lingual ribbon is elongated, 
rather large, sharp, and terminating in a lance shaped point at 
its extremity. They are arranged in extremely oblique rows. 
The denticula formula is 36.1, 36 and 67. 
“ The rachian tooth is elongated, slightly irregular unicus- 
pid, simple, and analogous to that of the American Qlandinas. 
The lateral teeth are similar to those of the StrepJiosfyla, 
Glanclina , Dandehardia, and other genera belonging to the fami- 
ly of the Testaccllidco. The marginal teeth are elongated, straight, 
and very near together. In presence of this organisation which 
denotes a carnivorous mollusc, the Pupa palanga can no longer 
remain either in the genus Pupa, or even in the family of 
llelicidce, because of its evident alliance to the Testaccllidw. It 
