SYKES : POLTrLACOPHOKA FROM PORT PniLLIP. 93 



tufts seem quite absent. The tail-valve is considerably like JV. 

 speciosus, but the tegmentum is not pear-shaped ; there are no 

 spiculose girdle-bridges at the sutures, etc." 



20. Crtptoplax stria ttjs (Lamarck). 



Chitonellus striatus (Lamarck): Anim. saus Vert., ed. i, tom, vi, 



p. 317, 1819. 

 Chitonellus Giinnii, Reeve: Conch. Icon., pi. i, fig. 5, 1847. 

 Chitonellus rostratus, Reeve: I.e., fig. 6, 1847. 

 Cryptoplax striatus, Lamarck : Hutton, Chall. Rep., p. 39, pi. i, fig. 9, 



and pi. iii, fig. 9 ; Pilsbry, Man. Conch., ser. I, vol. xv, 



p. 53, pi. ix, figs. 11-15; pi. xi, figs. 37-9; Proc. Acad. 



Is\at. Sci. Philad. 1894, p. 85. 



21. Chiton Bednalli, Pilsbry. 

 Chiton Bcdnalli, Pilsbry: JSTautilus, vol. ix, p. 90, Dec. 1895. 



It is interesting to note that this species, so recently described from 

 Torke's Peninsula, is also to be found in Port Phillip. 



22, Chiton limans, nom. nov. 



Chiton murieatus, A. Adams: Proc. Zool. Soc. 1852 [May, 1854], 

 p. 91, pi. siii, fig. 6; Pilsbry, Man. Conch., ser. I, 

 vol. xiv, p. 175, pi. xxxvii, figs. 12, 13; non Tilesius : 

 Mem. Acad. Sci. St. Petersb., ser. V, vol. ix, 1824, p. 483. 



Lophyrus murieatus, Angas : Proc. Zool. Soc. 1865, p. 186; l.c.^ 

 1867, p. 222. 



Mr. Pilsbiy has noted the description of a Chiton murieatus by 

 Tilesius : what this species is exactly, I am not sure ; it appears, 

 however, to be a large Siberian form. The name of G. limans was 

 used in MS. by Carpenter ; I beg to call attention to the fact that 

 I am not naming the shell as C. limans (Cai'penter MS.), this last 

 being a complicated and cumbersome process of nomenclature. 



EXPLANATION OF PLATE VI. 



Fig. I. Ischnochiton Wilsoni, n.sp. 

 \a. • separate valves. 



2. Acanthochites (Notoplax) Wilsoni, n.sp. 

 la. separate valves. 



3. Haploplax pura, n.sp. 

 3«. separate valves. The dotted lines show the position 



of the valve-slits, which are not visihle from above. 



4. Lepidopleurus inquiuatus (Eve.), separate valves. 



5. Acanthochites (Notoplax) glyptus, n.sp. 



oa. separate valves. 



G. Acanthochites Pilsbrji, n.sp. 

 6a. separate valves. 



