180-4.] NATlTRAIi SCIENCES OF I'HIEADELPHIA. 87 



hairs, and with the girdle and tail- valve shaped like those of Plad- 

 phorelbi. 



The hairs of the uirdle branch, somewhat as in Mopalia ciliata. 

 There is no trace of eyes or eye-pits upon the valves; but the genus 

 has doubtless descended from a form having eyes, and its position in 

 the general system will not differ from that assigned in my mono- 

 graph of the Polyplacophora. 



Loricella Angasi Ad. 



Port Jackson, several specimens collected by Dr. Cox. It occurs 

 also in South Australia. The largest specimen I have seen is one sent 

 by Mr. Bednall of Adelaide. 



The presence of hairs upon a girdle with a dense covering of scales 

 is an extremely rare if not unparalleled combination of chax-acters. 



Genus LIOLOPHURA Pilsbry. 



Liolophura Gaimardi Blaiuv. 



1825. — Chiton Gaimardi Blv., Diet. 8c. Nat. , xxxvi, p. 546. 

 1846. — ('hito)i incaniis Gld., Proc. Bo&t. Soc. N. H., ii, p. 145. 

 1867. — Cliitot, i)lcen.-< Angas, P. Z. S., 1867, p. 223. NotofGmel. 

 1874. — (.'hitoii piceiisTa.p. Can., Viag. 'Magenta,' p. 77. 

 1893. — Liolophura Gniviardi Pils., ISlau. of Conch., xiv, p. 240. 



Collected abundantly at Port Jackson and Port Hacking by Dr. 

 Cox. This species has been confused by wi-iters wnth Acxmiho- 

 pleiira. The latter genus is found in Australia only along the coast 

 of tropical Queensland. 



Three species of the genus LiolojyJtiira are now known from 

 Australia : L. Gaimardi, inhabiting the coast of New South Wales, 

 witli a variety in Queensland; L. georrjiana Q. and G. , described 

 from King George Sound, S. W. Australia, and L. curtisiana 

 Smith, from Port Curtis, Queensland. I have not seen the last- 

 named species. 



L. Gaimardi queenslandica ii. var. 



Valves similar in form and coloring to those of L. Gaimardi; girdle 

 covered with l)lack spines, whi(;h are somewhat more slender than in 

 Gaimardi. Length 50, breadth 31 mm. (dry specimen). 



Larger than any of the typical form seen, and distinguished by 

 the uniform black color of the girdle. Type is No. 64,853 of the 



