180 MESSES. J. C. MBLVILL AND E. STANDEN ON 



POLYPLACOPHOEA. 



CHITONIDJi. 



232. Chiton pictus, Bve. 



We are indebted to Mr. E. E. Sykes for the following and 

 other notes on the Polyplacophora of the collection : — " Having 

 examined Eeeve's types, I am unable to separate his species 

 from that of Grould, originally described from Fiji. Two sets of 

 tigures in the Moll. U.S. Explor. Exped. bear the number 434 ; 

 the present species is represented by the right-hand set; the 

 others being apparently a slip for 431. The slits in the largest 

 specimen are: head- valve 8, tail- valve 12" {E. B. S.). This 

 species was also found very sparingly by Mr. Brazier during the 

 ' Chevert ' expedition, at Darnley Island. Endemic in the 

 Torres Straits. 



Station 13, Mer. 



233. IscHNOCHiTON (Haploplax) sp. 



One very young specimen of a species of Haploplax ; when 

 alive it measured about 4 to 5 mm. "It is closely allied to 

 I. {Ilaploplax) purus, Sykes ; but the girdle-scales are large and 

 striate. Too young to describe " {E. B. iS.). 



Station 10, Channel between Hammond Island and Wednes- 

 day Spit. 



234. TONICIA FOETILIEATA, Bve. ? 



" One immature specimen, which may belong to this species ; 

 it does not show the granulose lateral areas, but this may be due 

 to its youth " (E. B. S.). 



The localities given for T. fortilirata by Mr. Edgar Smith 

 (Voy. ' Alert,' 1881-82, p. 84) are Port Darwin, 8-10 fathoms 

 {Coppinger) ; and Eaine's Island (Beeve). Endemic. 



Station 14, Channel between Mer and Davar. 



235. ToNiciA CONPOSSA, Gould. 

 Station 13, Mer. 



236. ACANTHOPLEUEA SPINiaEEA, SoW. 



station 13, Mer. 



237. AcANTHocHiTON. Two spccics. 



(i.) " One, immature, striate at the beaks and granulose on 

 the lateral areas " (E. B. S.). 

 Station 13, Mer, on reef. 



