DUBLIN UNIVERSITY ZOOLOGICAL AND BOTANICAL ASSOCIATION. 271 
Mr. Bain exhibited a specimen of the Water Chestnut (Trapa nutans); 
also some plants of Bossicea Preissii, raised from seeds presented by the 
Archbishop of Dublin, to whom they had been sent from Australia. 
Mr. E. Burchall exhibited a collection of foreign Lepidoptera from 
Demerara. 
The Meeting then adjoured to the 21st of June. 
FRIDAY EVENING, JUNE 21, 1858. 
Professor W. H. Harvey, M.D., E.B. S., E.L.S., Vice-President, 
in the Chair. 
The Minutes of last Meeting having been read, were approved of, and 
signed by the Chairman. 
CONTRIBUTIONS TOWARDS A CATALOGUE OF DIAT0MACE2E OF THE COUNTY OF 
DUBLIN. (SPECIES OBTAINED AT MALAHIDE AND PORTMARNOCK BY THE 
REV. EUGENE o’MEARA, A.M.) 
Achnanthes longipes, a 
}> # 7 * 
,, brevipes. 
Actinocyclus undulatus. 
Amphipleura sigmoidea. 
Amphiprora alata. 
,, didyma. 
Amphitetras antediluviana. 
Amphora ovalis. 
„ membranacea. 
„ affinis. 
Bacillaria paradoxa. 
Biddulphia aurita. 
,, pulchella. 
„ rhombus. 
,, turgida. 
Campylodiscus parvulus. 
Cocconeis diaphana. 
,, scutellum. 
>> . >\ ft- 
Coseinodiscus minor. 
,, radiatus. 
Diatoma elongatum. 
,, grande. 
Epithemia constricta. 
,, musculus. 
,, Westermanni. 
Eupodiscus sculptus. 
Gonphonema marinum. 
Grammatophora marina. 
,, serpentina. 
Himantidium Soleirolii. 
Isthmia nervosa. 
Melosira nummuloides. 
,, subflexilis. 
Havicula ambigua. 
,, convexa. 
,, didyma. 
,, elliptica. 
,, elegans. 
,, Jennerii. 
,, inilata. 
,, minutula. 
,, ovalis. 
Havicula palpebralis. 
,, punctulata. 
,, rhyncocephalus. 
,, Westii. 
Kitzchia angularis. 
,, bilobata. 
„ sigma. 
„ spathulata. 
Odontidium Harrissonii. 
,, mesodon. 
Orthosira marina. 
Pinnularia cyprina. 
