[ 5°6 ] 
The annexed Plate XVIII. will beft explain the reft ; 
where b is the belly-part of the animal, in its na- 
tural fize, hanging out of its tube. 
B is the fame fide of the whole animal a little mag- 
nified. 
a is the back-part of the head of the animal, fitting 
in its tube. 
A is the back-part of the whole animal a little mag- 
nified. 
e fhews the infide of the tube with the ftrata, or rings* 
feen through the horny inner coat. 
I return you my thanks for this favour, and think, 
that the largenefs and diftindtnefs of the animals and 
tubes, in this fpecies, ferve greatly to illuftrate that 
genus of corallines which I have called tubulary. I 
am, 
S I R, 
Your much obliged, and 
Lawrence Lane, 
Feb. 7,1754. 
obedient humble fervant, 
John Ellis. 
P. S. The coralline called in Ray’s Synopf. Ed. 2. 
p. 2. and Ed. 3. p. 36. N° 1 5. Fruticulus mari - 
mis, cauliculis crajjiufculis teretibus rigidis , pen- 
natus , which I have named the herring-bone 
coralline, and which is very common on oyfiers 
all the winter feafon, fhews remarkably, by the 
help of a common magnifying glafs, the tubu- 
lary 
