406 On Echinoderms from Port Phillip. 



pletc judgment on tlie matter had better be postponed till a 

 larger series of specimens is available. 



Cucumaria inconspicua. 



It may be convenient to reprint the description of this 

 species from the ' Proceedings of the Zoological Society,' 1887, 

 p. 532 :— 



" Small, stout, a little rough to the touch, with the suckers 

 not quite definitely limited to the ambulacra, though very 

 often nearly so ; the trivial suckers are in four and tlie bivial 

 in two fairly regular rows. No anal teeth. The pharyngeal 

 ring large, the muscles stout and inserted at once into the 

 body-wall ; the ring appears to be made up of five * sets of 

 equal pieces, formed probably by the equal radial and inter- 

 radial calcifications ; the Polian vesicle is large. 



" The genital tubes are long, simple, and not numerous, 



" The spicules are rare and are only in the form of large 

 deposits of the shape shown in plate xlv. fig. 3. 



" Colour, varying shades of dark slate or brown. 



"Average length 17 millim., average greatest breadth 

 6 millim. 



" Port Phillip Heads. Collected by J. B. Wilson, Esq. 



" The irregularity of the arrangement of the suckers of this 

 species appears to afford a strong argument against the divi- 

 sion of the genus Cucumaria into Cucumaria s. str. and 

 Semperittj which has been proposed by Lampert." 



It will give a little more completeness to these notes if I 

 add the names of the species collected by the ' Challenger,' 

 but not included in Mr. Wilson's collections, from shallow 

 water near Port Phillip. Mr. Sladen has kindly given me 

 the names of the Asteroidea ; the additional species are Aste- 

 rias polyplax and Nectria ocellifera. 



The Ophiuroids, as reported by Mr. Lyman, were 



OpMoglypJia Kinbergi^ Lym- 

 Ophiohyrsa rudis, Lym. 

 Opih iocnida pilosa^ Lym . 

 Ophionereis Scliayeri^ M. Tr. 

 OpMothrix aristulata, var., Lym. 



* " Fine " in tlie original is a misprint for " five ; " as a matter of fact 

 the pieces are rather stout. 



