1833.] Objects of Natural History. 589 
On the very cursory inspection, however, which has been made, it 
appears that there are several new forms, both of the insects, and of 
the shells. Of the former, among the Coleoptera, the specimens of the 
families, of which Lucanus, Cerambyz, and Curculionide are the types, 
are numerous; and some of the species very extraordinary and beauti- 
ful: of the Lamellicorn Beetles, there are but few, consisting chiefly 
of the Cetoniade and Dynastide : of the Serricornes, Buprestis and 
Elater are the only genera; whilst the collection is remarkable for 
the few specimens of that numerous family comprising the genus 
Carabus of Linneus. 
Of Orthoptera, the species are few; butamong them aretwospecimens, 
unfortunately both mutilated, of the celebrated leaf insect from Sylhet. 
The Hemiptera are numerous, consisting chiefly of Pentatoma and 
its affinities. 
Of the order Omoptera, the genus Cicada and its affinities have 
many specimens, some of which appear to be new. 
The Lepidoptera are all more or less injured. Some of the butterflies, 
however, are very beautiful, and may be preserved until better speci- 
mens shall be procured. The same may be said of the moths: and 
there are some species of the genus AZlas, one of which is of large size 
being 92 inches from tip to tip of the wings; and another, believed 
to be as yet unknown. 
The collection of shells consists chiefly of the Phytiphagous section 
of the Trachelipodous Mollusca ; some few belong to the Zoophagous 
section of the same order ; one genus comes under the class Conchifera, 
and one is placed in the section Hydrobranchie of the Gasteropoda. 
In all there are about 22 different genera; and at least 60 different 
species, comprehending between 6 and 7 thousand individual specimens. 
Among these, some of the species of Caracolla, Cyclostoma, 
Melania, and Paludina are especially remarkable. There is also one 
species entirely new, of a genus first described by Mr. Benson in the 
first number of the Journal of the Asiatic Society, for January 1833, 
under the name of Pierocyclos. It has been thought proper to change 
that name to Spiraculum, for reasons which are fully detailed ina 
paper the author has the honour of presenting to the Society to night. 
In conclusion, it may be remarked, that the collection is one suffici- 
ently interesting and valuable, perhaps, to secure a vote of indemnity 
for purchasing it. It is probable that on inquiry it will be found to 
contain many new forms, particularly among the shells: for, not pos- 
sessing the kind of beauty that makes them estimable to ordinary 
collectors, land and fresh water shells have rarely formed any consi. 
derable part of cabinets made for shew or for sale, and are accordingly 
little known to, and much valued by, the naturalist. 
