WEIGHT EXHIBITION OF ECHINODEltMS. 45 



Geological -Survey in rocks referred to the Old Red Sandstone, in the 

 county of Kerry, branching Plants, Filicites lineatus, occurring in purple 

 slates on the west side of the Gap of Dunloe, and in micaceous slates 

 and sandstones at Gortalunny and Rossacossane ; and at Coolownig, one 

 of the root-like Plants was procured resembling Stigmaria ; and from 

 rocks on the west side of Coomasahara Lake ribbed Plant stems were 

 collected, some of them more than an inch in diameter. Prom rocks at 

 Kilmore sea beach, blocks of sandstone were obtained by Mr. P. J. Foot, 

 1L A., Senior Geologist of the Geological Survey, full of Plant remains, 

 consisting of diverging fronds bearing striated stems. 



Dr. E. Perceval Wright exhibited specimens of several new species 

 of Echinoderms, belonging to the Pamilies Ophiuridse and Asteriadse. 

 These species were chiefly from the collection made some years ago by 

 his colleague, Professor Harvey, on the coasts of New Zealand and Aus- 

 tralia, and had been presented at the time to the Trinity College Mu- 

 seum. Dr. E. P. Wright also exhibited a specimen of the animal of the 

 genus Kuphus, one of the Teredinidse, which, in all probability, had not 

 been seen or described since the days of Sir Everard Home. At one 

 time, and indeed in all the best manuals of Mollusca, this genus was 

 described as destitute of valves, in which respect it was unique among 

 Lamellibranchiate Mollusca; but this specimen proved that in this 

 respect this genus did not differ from all other bivalves. A specimen 

 belonging to a new species of this genus was also exhibited. This Dr. 

 Wright had described at a recent meeting of the Linnean Society, and 

 for permission to do so he was indebted to the extreme kindness of his 

 friend, Dr. J. E. Grey, of the British Museum. This species was from 

 the coast of Australia, and had been collected by Mr. Clifton. In con- 

 clusion, Dr. Wright remarked that perhaps no Molluscan genus showed 

 more than this one the extreme divergence in habit of very closely-allied 

 species, one living in mud, and forming a most remarkable closed tube, 

 sometimes equalling three feet in length — a giant among shipworms ; 

 another following the practice of all ordinary Teredines, and content, 

 like them, to busy itself boring into timber — forming little or no tube, 

 and being but of moderate dimensions. 



Mr. Good, touching on the subject of Teredinida3 occurring in salt 

 water only, remarked that in the St. Lawrence the submerged timber, 

 called " Greenheart," had been found bored by a Teredo where no tidal 

 water ever goes up. This would confirm Dr. Wright's record, made 

 some time ago, of a Teredo occurring in undoubted fresh water in 

 India. 



The meeting adjourned to the first Thursday in June. 



