T ab.2
F ig. g.
T ab.2
F ig . 9
Corallina nervo tenuiori, fragiliorique internodia lon-
giora neSlentq. Sloan Hift. Jam. I. pag. 58. tab. 20.
%• 3-
This is found among the American iflands, particularly
on the coaft of Jamaica.
The upper part has joints remarkably fmaller than the
lower part.
7. Corallina barbata.
Corallina dichotomy
articulis cylindricis, ra-
mulis apice barbatis.
Bearded Coralline.
Dichotomous Coralline with
cylindrical joints, and the tops
of the branches ending in
tufts o f filaments.
Rofary, or Bead-Coralline o f Jamaica. Ellis Corallin.
pag. 54. tab. 25. fig. c. C.
Corallina barbata. Linn. Syft. Nat. Ed. 12. p. 1305.
Thefe two laft Corallines feem to be near akin ; they
look like beads ftrung on fixings ; the tufts of filaments
feem to be the infant ftate of the joints, before they are
covered with the calcareous part. This will probably be
confirmed by future obfervations; at prefent this appearance
makes a remarkable difference.
This was found on the fea-coaft of Jamaica.
!-8. Corallina lapidefcens. Stony Coralline.
Corallina dichotoma, 'Dichotomous Coralline with
articulis cylindricis v il- cylindrical downy joints.
lofs.
T ab. 21. F ig. g. Tab. 22. F ig. 9.
There
There are two varieties of this Coralline, one that is
always dichotomous, Tab. 22. fig. 9. and another that
fends out three or more joints from the fame place,
Tab. 21. fig. g. The fine hair-like down, when magnified,
looks like the beginning o f'a Byflus. In fpeci-
mens lately received, preferved in. fpirits as they were
taken out of the fea, thefe fine fhort reddifh hairs
come out in regular whirls, or circles,, one above another,
out of the pores in the calcareous furface of the
Coralline.
I f we examine the figures of the Coralline of the fhops
that are -reprefented magnified, after the calcareous coat
was taken off" by vinegar (fee fig. A. and C. tab. 24. Ef-
fay on Corallines) we mall find the fame kind of circular
rows of fibres, one above another, as in this ; fo that it
appears as if this Coralline in its prefent ftate was producing
another calcareous layer over its former one.
9. Corallina obtufata.
Corallina dichotoma,
articulis oblongo-ovatis u-
trinque rotundatis fub-
comprejfs.
Oval jointed Coralline.
Dichotomous Coralline with
joints that are of an oval oblong
figure, rounded at both
ends, and a little comp refled.
T ab. 22. F ig. 2.
Many of thefe Corallines, when dried, become com-
prelfed ; but from the appearance of many kinds which I
have received in fpirits juft as they were taken out of the
fea, they are perfectly round.
This was brought from the Bahama Iflands.
CL 10. Corallina
T AB.22.
F ig. 2.