1080 APPENDIX. 



tralia " and as a synonym gave Streptochiton tortuosus, Cpr. MS. 

 olim. He also gave Carpenter's manuscript detailed description of 

 the type. In the British Museum are the type tablet and three other 

 tablets, one marked ' Newcastle. Australia, Dieffenbach," and the 

 two others '' From New Zealand." All these last three are labelled 

 " S. tortuosus, Cpr.." in Carpenter's handwriting. 



As Dieffenbach collected largely in New Zealand, 1 consider it 

 feasible to suppose that an erroneous label has been attached to the 

 shells, as otherwise it is unknown from Australia, and I do not con- 

 sider it should be included in Australian lists. 



There can be no doubt that all the specimens are conspecific, and 

 as egregia has priority it must replace the familiar ovata. 



Thiele has reinstated Fremblya as a full genus, but I cannot yet 

 see characters sufficiently strong to cause me to follow him. (T. 

 Iredale.) 



Spongiochiton productus, Pilsbry. 



Thiele (I.e., 36) examined the type, lent by the British Museum, 

 and arrives at the conclusion that it does not differ very much from 

 Loboplax. Iredale has also studied the species (I.e., 100), and ascer- 

 tained that Acanthochites Carpenteri, Pilsbry, Man. Conch. (1). xv, 

 35, pi. 1, f. 14-22, is a synonym. For the latter species the habitat 

 given is Port Elizabeth, South Africa, which most likely is correct, 

 and the species has to be omitted from the list of New Zealand shells. 



Acanthochites (Loboplax) Mariae, Webster, 1908. 



Thiele described a new species as Loboplax stewartiana, n. sp. 

 (" Zoologica," xxii, Heft 56, 1909, 37, pi. 5, f. 8-12), from a specimen 

 collected by Filhol at Stewart Island, which is in the Museum Hist. 

 Nat., Paris. 



I compared specimens of Webster's species with Thiele's description 

 and figures and came to the same conclusion as Iredale (I.e., 102), 

 that the two are conspecific. 



Webster's name has priority, but the habitat, Stewart Island, 

 is new. 



Acanthochites Thileniusi, Thiele, 1909. 



Arnnthochites Thileniusi, Thiele, " Zoologica," xxii. Heft 5l>, 1909, 50, pi. <> 

 f. 54-60 ; Iredale, P. Mai. S.. ix, 155. 



Valves whitish with a dark-olive longitudinal streak on each side 

 of the central area, the lateral areas and the end valves mostly 

 blackish-olive, now and again with whitish spots. Girdle with white 

 and olive spicules. The valves are regularly arched. Jugal area 

 longitudinally striated, the granules of the latero-pleural areas 

 rounded, small, crowded. The tegmentum of the intermediate 

 valves is considerably broader than long, in the proportion of 7:4, 



