REPORT UPON THE ECHINODERMATA. 139 



Byerley states that a single specimen of Cihcumaria 

 communis was obtained by a fisherman at Hoylake. Pro- 

 bably it was the present species. 



A large Holothurian which was found cast ashore alive on 

 the north end of Hilbre Island by the Committee agrees 

 closely with Forbes' description and figure of Thyone 

 portlockii, which is identical with Thyonidium drmmnondii. 

 It has also been found on the beach at Penmaenmawr. 



Ocnus brunneuSf Forbes. 

 = Ocnus lacteusy Forbes and Goodsir (?) 

 Forbes records this species from the Isle of Man, and a 

 small specimen was dredged in August, 1885, from a depth 

 of fifteen fathoms, off Spanish Head, Isle of Man. 



Cucumaria pentactes, Miiller. 

 This species is recorded by Forbes (Brit. Assoc. Rep.) 

 from the Isle of Man, twenty fathoms. 



A single specimen was obtained during the cruise of the 

 "Hyaena," on May 24th, 1885, near Pu£&n Island, from a 

 depth of fourteen fathoms. 



Cuciimaria hyjidmanni, Thompson. 

 A single specimen of this species was dredged in 

 August, 1885, from a depth of twenty fathoms, off Port 

 Erin, Isle of Man, 



