84-4 Transaction*. — J Jot any. 



described by rne, in vol. xiv. of the Transactions of the New Zealand Insti- 

 tute, as Himantidium maskellii. Mr. Brightwell describes a specimen from 

 Melbourne under the name Eunotia eruca* The leading diatomists of 

 England now include Amphicampa and Himantidium under the genus 

 Eunotia. Subsequently I found other deposits in the same swamp, and 

 note the species found as follows : — 

 Eunotia eruca. 

 „ bidens. 

 „ undulatum. 

 Stauroneis cruciculum. 



„ phoenicenteron. 

 Pinnularia major. 

 Gomphonema constricta. 



,, viridis. 



Synedra radians. 

 Surirella linearis. 

 Orthosira orichalcea. 

 Epithemia longicornis. 

 „ turgida. 



Amberley, North Canterbury. 

 On the property of Mr. Alex. Broadfoot, Seaview, at a point on the top 

 of the terrace where until lately there was a spring of water, I found a 

 considerable deposit, and in the peat swamp below I found the following 

 fresh-water species : — 



Stauroneis (Pleurostauron) fulmen. 

 Eunotia eruca. 



,, triodon. 

 Melosira punctata. 



„ ,, rac. 



Synedra vulgare. 

 Pinnularia acrosphoenia. 

 Eunotia (Himantidium) bidens. 

 ,, arcus. 

 „ undulatum.' 

 ,, pectinale. 

 Gomphonema constrictum. 

 New Brighton, near Christchurch. 

 A fresh-water and possibly brackish -water deposit was laid bare by the 

 formation of Payn ton's road through the swamp. I have been able to 

 identify the following forms : — 



Pinnularia major. 

 Navicula munda. 

 „ didyma. 

 „ elliptica. 



* " Quarterly Journal of Microscopical Science," 1859, p. 179. 



