G. M. Thomson. — Natural History of Oiar/o Harbour. 247 



109. Cilicaea canaliculata Gr. M. Thomson. {Naesa (= Nesaea) canali- 



culata G. M. Thomson.) 



Commonly taken in the trawl off Otago Heads. 



110. Cassidina neo-zealanica G. M. Thomson. 



Very common on the coast ; usually found creeping on seaweed. 



111. Amphoroidea falcifer G. M. Thomson. 



Occasionally met with in dredged or trawled material along the coast. 



112. Astacilla tuberculata G. M. Thomson. 

 Dredged in Otago Harbour. 



113. Idotea lacustris G. M. Thomson. 



Found in the mouth of the Tomahawk Lagoon, at the mouth of a little 

 stream coming into Otago Harbour at Sawyer's Bay, and also in the fresh- 

 water streams themselves up to an elevation of nearly 2,000 ft. 



The species appears to be undergoing transition froiu a salt-water to a 

 fresh-water form. I have had specimens brought to me from a small stream 

 on Swampy Hill, behind Dunedin (at a height of 1,800 ft.), which ran into 

 the Silverstream, itself a tributary of the Taieri River. 



114. Idotea elongata Miers. 



Common along the coast. 



115. Idotea peronii Milne-Edwards. 

 Common along the coast. 



116. Paridotea ungulata Miers. 



Fairly common in Otago Harbour and on the coast. Usually (? always) 

 bright green in colour. 



117. Ligia novae-zealandiae Dana. 



The rock-slater is common under stones on rocky beaches. 



118. Actaecia euchroa Dana. (Chilton, Trans. Linn. Soc, Zool., viii, 



p. 130.) 

 Dunedin. 



Phyllocarida. 



119. Nebalia longicornis G. M. Thomson. 



Otago Harbour, and frequently taken outside the Heads in the trawl- 

 nets. 



Ostracoda. 



120. Cyprinotus flavescens Brady. 

 Neighbourhood of Dunedin. 



121. Cythere atra G. M. Thomson. 

 Among shore-algae, Otago Harbour. 



