Marine Animals found on the Chapt of Wales. - ET 
py. Body is covered on the upper fide by five unequal 2 
(coto valves.” It is remarkable ‘of this fpecies, that it is 
- furnifhed with zwo apertures, one at the confluence. 
of the valves, the other in the largeft valve; their 
pofition with refpe& to the centre is variable: the - 
dae may readily-efcape obfervation, except when the 
animal choofes to elevate it above the plane of the ` 
E When fully expanded, the infide appears 
clothed with a fine membrane longitudinally folded 
and revolute at its margin. Colour deep red. 
Simce the illuftrious Mr. Pennant has not referred his 
A. decacnemos to the A. peétinata Linn. (though he has 
<3 quoted Barrelier and the figure of Linckius, which 
are given by. Linneus ds fynonyms to his A. peĉi- 
nata}, Y cannot but feel apprehenfive of having 
committed an error in confidering them as the fame 
fpecies, and have confequently affixed a mark of 
__. doubt tothe Linnean reference; but fince the fpecific 
hepa cad character given in che ea Nature accords per- 
i Fett ly with 1 f cimens which í have exa- 
a "eT I truf it will not be the caute of any confufion 
toa Brugh naturalift. 
a an: “SERTULARIA. | 
1. imbricata, Xd fubramofa, veficulis fubclavatis, fursüm inordinatà 
imbricatis. gb 
Tas. TT. XE 5—i | 
On the Fucus nodi fuse Milford Haven. 
A "This fpecies feems moft nearly allied to the S. ce- 
Mei or oe * aa drina, 
é 
Bk 
