274 | Dr. Maton’s Note relative to the 
the shell and epidermis, are entirely destitute of strie. We say 
no more on the subject at present, as the knowledge possessed 
by the two gentlemen mentioned above, renders them more able . 
to add what is further necessary. They will no doubt settle it 
most ably, and I have. promised. to. assist iù making drawings 
to elucidate their former paper. lf the Society should think 
it useful, I will add more finished drawings of the Mytilus litho- 
phagus striatus, by which name I will now distinguish one. 
The annexed outlines are pen sufficient to soi gee: the 
pissed 
Tas. VI. 
Fig. 2. Mytilus lithophagus striatus. | 
Fig. 3. A shell without the strie, and with the calcareous ap- 
 pendages at the top. 
Tig. 4. One of the same, with the calcareous appendage Beinta 
ed, to show that it has not the transverse strig. ; 
| ME 5. The inside of the same. s s 
Note ly Dr. Maton. : 
ah strie alluded io i Mr. Sowerby, and described i in the 
Systema Nature, by Gmelin, did not escape the attertion of 
Linneus, v ho, in kis description of Mytilus lithophagus, in the 
[useum Ludovice Ulrice Regine, makes use of the following 
words, 1 viz. ‘oblique dimidiato transversim striata.” These words 
apply to the striated appearance, much more precisely than his 
editor’s, and indeed are as aptly descriptive of it as possible, 
which will be discov ed by parse: su wide = | meii s 
Emo d] cS ace Soe figure — 
