ADDITIONS AND EMENDATIONS. 1079 



Plaxiphora albida, Blainville, 1825. 



Chiton albidus, Blainv., Diet. Sci. Nat., xxxvi, 1825, 547 : Man. Conch. (1), 

 xv, 105. C. glaucus, Quoy and Gaimard, Voy. Astrol., Zool., iii, 1835, 

 376, pi. 74, f. 7-11. ?C. petholatus, Sowerby, M.N.H. (n.s.). iv, 1840, 

 289; var. porphyrius, Sow., I.e. Chcetopleura conspersa, Adams and 

 An^as, P.Z.S., 1864 ; 1865, 187. Plaxiphora albida, Blainv. : Thiele, 

 " Zoologica," xxii, Heft 56, 1909, 24, pi. 3, f. 22, 23 ; Iredale. P. Mai. S., 

 ix, 98. P. tasmanica, Thiele, I.e., 25, pi. 3, f. 24-2(5. P. Bednalli, 

 Thiele, I.e., 25, pi. 3, f. 27-31. 



Thiele and Iredale use the earlier name of albida, Blainv., for the 

 shell commonly known as P. glauca, Q. & G.. but. as the former was 

 not figured, the latter can still be retained. 



Plaxiphora superba, Pilsbry, 1893. 



Thiele (I.e., 27) mentions that the largest figure of P. biramosa. 

 Q. & G., in Voy. Astrol. is this species, which erroneously usually 

 went under the latter name. He also says that he is unable to sepa- 

 rate it from P. Campbelli, Filhol, and P. subatrata, Sut. He and 

 Iredale (I.e., 95) use Filhol's name, but for reasons already stated I 

 use Pilsbry's name superba. 



Plaxiphora obtecta, Pilsbry, 1893. 



Plaxiphora Suteri, Pilsbry : Thiele, I.e., 29, pi. 3, f. 48, 49. P. obtecta, Pilsbry : 



Iredale, I.e., 92. . 



With regard to the synonym Mopalia ciliata, Sow., of Button's 

 Manual, Iredale says, " In that place Hutton quotes Reeve's figure 

 and copies Reeve's description. Reeve figured a shell like ccelata, 

 and states New Zealand (Earl). No one could confuse Reeve's figure 

 with the shell under notice, and I would transfer Mopalia ciliata, 

 Sow., of Button's Manual, 116 (not of Sowerby), to ccelata. Reeve." 

 Last year I had an opportunity of examining Reeve's figure, and I 

 fullv agree with Iredale. 



J O 



Plaxiphora egregia, H. Adams, 1866. 



Frembleya eyreyia, H. Ad., P.Z.S., 1866, 445, pi. 38, f. 9. Plaxiphora egreyia. 

 H. Ad., Man. Conch. (1), xiv, 331, pi. 65, f. 80-82 ; Iredale, P. Mai. S.,. 

 ix, 1910, 93. Acanthochcetes ovatus, Hutton, T.N.Z.I., iv, 1872, 182; 

 M.N.Z.M., 177. Plaxiphora ovata, Hutton, Man. Conch. (1), xiv, 332, 

 pi. 54, f. 34-40 ; Suter, P. Mai. S., ii, 192 ; Iredale, T.N.Z.I., xl, 375. 

 pi. 31, f. 1 (abnormal specimen). Fremblya ovata, Hutton : Thielr. 

 I.e., 29, pi. 3, f. 50-52. 



Fremblya egregia, H. Adams, described and figured in 1866 from 

 " unknown habitat," appears to have received very little attention 

 since. In 1872 Hutton described a New Zealand shell as Acantho- 

 chcetes ovatus. 



In 1893 Pilsbry included both under Plaxiphora, reducing Frem- 

 blya to sectional rank. To egregia he allotted an Australian habitat 

 on Carpenter's MS. " Collected by Diefienbach, Newcastle, Aus- 



