IREDALE : NOTES ON rOLYPLACOPHOKA . 131 



A North Queensland shell needs a new name, for Ch. pictiis, Keeve, 

 Conch. Icon., pi. xv, fig. 79, 1847, from Raine's Island, Torres 

 Straits, is invalid through the prior Ch. pictus, Blainville, 1825. The 

 types of Reeve's species are in the British Museum, but it appears to 

 be a somewhat rare shell. I propose for this species the new name 



LxjciiJNA SHiRLETi, fiom. nov. 



It is named after Dr. John Shirley to mark my thanks for his 

 generosity in forwarding me liis collection of Chitons for examination. 



AVhilst checking these notes I find that in the Manual, vol. xiv, 

 p. 195, Tonicia crenulata is included, based upon Ch. crenulatus, 

 Broderip, Proc. Zool. Soc, 1832, p. 27. But, as above noted, there is 

 a prior Ch. crenulatus, Risso. 1826. A good substitute is ready in 

 ? 2'o7iicia forbesii, Carpenter, Mazatlan Cat., p. 193, 1856. 



