106 HISTORY OF BRITISH ZOOPHYTES. 
Hab. On seaweeds, and stones between tide-marks. 
This little zoophyte is not often met with on the Ayrshire 
coast, but being minute it may at times escape notice. It 
creeps along the surface of the object to which it adheres, 
seldom more than an inch in height, tubular, horny, sub- 
pellucid, wrinkled, and more or less ringed. The head is 
of a reddish colour. It can bend its head, or give to any 
tentaculum a distinct motion and direction, though its 
motions are slow. I have specimens of it from Mrs. Grif- 
fiths, Torquay; Miss Cutler, Budleigh Salterton; Mr. Tu- 
manowicz, Hastings; and Mrs. Gatty, from the Yorkshire 
coast. 
Small as this creature is, it is one respecting which there 
is much difference of opinion among naturalists. Four 
varieties of it are described by Dr. Johnston. 
Genus IV. CORDYLOPHORA, Allman. 
Gen. Char. Polypidom horny, branched, rooted by a creeping 
tubular fibre, branches tubular. Polypes developed at the ex- 
tremities of the branches, ovoid, bearing the mouth at the 
distal extremity, and furnished with scattered filiform tentacula. 
—Allman.—The name is from two Greek words, the one signi- 
fying a water-newt, and the other a burden. 
