EUDENDRIUM. 107 



1. CoRDYLOPHOiiA LACusTRis, G. J. Allman^. 

 Hab. Dock of the Grand Canal, Dublin, Allman, 

 The dock is free from any admixture of sea-water, and 

 the Professor kept it alive for a fortnight in fresh-water, not 

 taken from the dock. It was found on the bottom of an 

 old canal-boat. It is horny; branches cylindrical. Polypes 

 at the end of the branches, ovoid, and prolonged into a 

 conical projection with the mouth at the extremity; the 

 body of the polype being covered with scattered, filiform 

 tentacula. 



Pamily TUBULAEIAD^. 



Character. Polypidom plant-hke, horny, rooted by fibres, 

 rarely free, simple or branched, tubular, filled with a semifluid 

 organic pulp. Polypes naked, protruded from the ends of the 

 tubes, and not retractile, fleshy and red, armed with one or two 

 circles of smooth filiform tentacula. Bulbules pullulating from 

 the bases of the tentacula, soft and naked. Embryo medusiform. 

 — Johnston. 



Genus V. EUDENDEIUM, Ehrenberg, 

 Gen. Char. Polypidom rooted by creeping fibres, erect and 



* The distinguislied Professor of Botauy, Trinity College, Dublin. 



