SCIENTIFIC SOCIETIES. 117 
three genera have triplets consisting of primaries, the dorsal and arboral 
plates being low and broad, and the second, or central plate, being a large 
primary. Near the peristome there is deformity of this typical arrange- 
ment, and in Echinothrix a demi-plate may enter, but it is never the 
second plate. In Astropyga the triplets are arranged so that the majority 
are on the Diadema-type, the exceptions being recorded. The structure 
of the triplets of Micropyga is unique, and the arrangement, leaving out the 
position of the pores, is somewhat like that of Celopleurus. Aspido- 
diadema, as has been explained by A. Agassiz, is like Cidaris in its 
ambulacra.—J. Munir. 
ZooLoatcaL Socrrty or Lonpon. 
February 3, 1885.—Prof. W. H. Frowrer, LL.D., F.R.S., President, 
in the chair. 
The Secretary exhibited a specimen of a rare South-American Lizard, 
Heterodactylus imbricatus, presented to the Society by Mr. G. Lennon 
Hunt; and a specimen of a rare beetle, Julodis Ffinchi, of the family 
Buprestide, from Beloochistan. 
A letter was read from Dr. George Bennett, of Sydney, containing 
remarks on the Tree-Kangaroo of Queensland, Dendrolagus Lumholtzi, 
lately described in the Society’s ‘ Proceedings.’ 
A series of specimens of lepidopterous insects, which had been bred in 
the Insect House in the Society’s Gardens during the past season, was laid 
on the table. 
A communication was read from M. Taczanowski and Count Berlepsch 
containing an account of the third collection of birds obtained by M. Stolz- 
mann in Ecuador. The collection contained examples of 289 species, of 
which ten were new to Science. 
Lieut.-Col. C. Swinhoe read the first of a series of papers on the 
Lepidoptera of Bombay and the Deccan. ‘The present communication 
contained an account of the Rhopalocera, and gave the results of two years’ 
daily collecting. 
A communication was read from Mr. Robert Collett, giving an account 
of Echidna acanthion, a new species of Spiny Anteater lately discovered in 
Northern Queensland. 
A communication was read from M. Jean Stolzmann, containing the 
description of a new Rodent, belonging to the genus Calogenys, from 
Ecuador, proposed to be called Calogenys Taczanowskit. 
February 17, 1885.—Ospert Savin, Esq., F.R.S., Vice-President, in 
the chair. 
A report was read on the additions that had been made to the Society’s 
Menagerie during the month of January, and special attention was called 
