Col. Pike presented a Lepidopter of the genus Danais 
which was caught at Richeniarc, in the district of Flacq, 
by Mr. Regnard. He believes it to belong to a different 
species from J). Chrysippus and I). Alcippus, and that it 
lias never been described and probably comes from Ma- 
dagascar. 
lie aho found on Banana plants a Coleopter which pe- 
netrating into the plant destroys its modular substance. 
In the opinion of Col. Pike, it i s n species of the genus 
Altdalus. Your Secretary nevertheless is more inclined 
to believe that it is a species of Culandta, very com- 
mon in the orchards, where it devours the budding lea- 
ves of Mango tree and Badamicr, as fast as they appear, 
Mr. \ . de Robillard has been fortunate enough to 
discover a species of Haitian on Barkly Islet, that in- 
exhaustible mine of shells and Crustacea. This genus con- 
sisted hitherto of but one species, found here and at 
Reunion Island. The carapace of this one is brillant and 
covered with granulations, and the upper part is adorned 
with a kind of crown. In consequence of this pecu- 
liarity, Mr. Robillard has bestowed on it the name of 
Ranina coronata. 
Col. Pike communicated a very interesting paper on 
the terrestrial M olluscse of Mauritius containing: the 
minute observations he had made on the nature and con- 
formation of some of these animals. 
The examination shewed that the species of Pupa called 
P'alanga, and native of Mauritius, is carnivorous and not 
herbivorous as was supposed. It has therefore been re- 
moved from the place assumed to it, to form the type 
of a new genus to which the name of Gonospora has 
been given. 
The same thing will probably happen with regard to 
other species of the genus /’» pa and of the genus Gibbus 
