Iredale. — Marine Molluscs collected in Otago. 405 



As in my Banks Peninsula list, I have followed Pelseneer's 

 classification, for the purposes laid down in the preface to that 

 list. 



As the collecting was done on the Otago Peninsula and at 

 Shag Point, Otago, I have after each species put " 1 " or " 2," 

 the " 1 " meaning collected on the Otago Peninsula, and the 

 " 2 " standing for Shag Point. By this means this list will 

 prove more useful to students of the geographical distribution of 

 the marine Mollusca of New Zealand. 



In my Banks Peninsula list I have noted the stations whence 

 I obtained living specimens of the molluscs there enumerated. 

 In Otago I collected some molluscs which I had not met with 

 alive on Banks Peninsula. 



Some very interesting finds I have elsewhere recorded in 

 detail. Herewith are given details of the stations of some 

 molluscs which appear to be rare alive in the littoral zone : — 



Acanthochites violaceus, Q. and G. 



Under clean stones in very deep rock-pools only. 



Emarginula striatula, Q. and G. 

 Under dirty stones, with above. 



Trochus oppressus, Hutton. 



Not uncommon under stones in rock-pools. 



Oantharidus opalus, Martyn. 



One specimen alive on seaweed in rock-pool. 



Turbo granosus, Martyn. 



Among seaweed on reef uncovered at very low tide. 



Trichotropis inornata, Hutton. 



Under dirty stones between tide-marks. 



(jfyrineum argus, Gmelin. 



Eight live specimens in a deep rock-pool. 



Barbatia decussata, Sowerby. 



One specimen under a dirty stone with preceding. 



All the other species I found frequenting the same station 

 as at Banks Peninsula. 



Lepidopleurus inquinatus, Reeve. 1, 2. 

 Ischnochiton longicymba, Q. and G. 1, 2. 

 fidvus, Suter. 1, 2. 



Callochiton platessa, Gould. 2. 

 Plaxiphora biramosa, Q. and G. 1. 



ccelata, Reeve. 1, 2. 



suteri, Pilsbry. 1. 



ovata, Hutton. 1, 2. 



