Inglis. — On the Diatomaceous Deposits of New Zealand. 345 



Cymbella ? PI. XXIX., fig. 4 ; a, side view ; b, front view. 

 Coscinodiscus ? 

 Homoeocladia sigmoidea. 

 Synedra gallionii. 

 Surirella limosa. 

 Epithemia argus. 

 ,, sorex. 

 „ zebra. 

 Macintosh Bay, Banks Peninsula. 

 On the hill- slopes of the bay, a visitor noticed after rain that the water 

 trickling from the side of one of the spurs left a white deposit on the grass, 

 some of which was gathered and placed in my hands for examination. I 

 endeavoured to get the position of the deposit fixed, but hitherto without 

 success. I found, however, the following diatoms in the very minute 

 gathering which I received : — 



Cymbella cuspidata. 

 Nitzchia amphioxys. 

 Gomphonerna constrictum. 

 Synedra ulna. 

 Surirella minuta. 

 Navicula cuspidata. 

 ,, sphasophora. 

 ,, amphibcTena. 

 Aclinantbis exilis. 



Whangarei, Auckland. 

 Samples of this fresh-water deposit have been placed in my hands, but 

 I take a list of the species comprising it from the MSS. notes of Professor 

 Hutton, made some years ago. Samples have found their way into the 

 hands of English diatomists. 



Pinnularia gibba. 



,, nobilis. 



Navicula pusilla. 

 ,, westii. 

 „ cuspidata. 

 Stauroneis phoenicenteron. 

 Synedra radians. 

 Cocceoneis placentula. 



)> ? 



Eunotia (Himantidium) bidens. 

 Gomphonerna constrictum. 

 Cymbella cuspidata. 

 Melosira arenaria. 



,, ? 

 Epithemia rupestris. 

 ,, hyndmanii. 



, zebra. 



longicornis. 



