a9o • 
WORMS. TESTACEA, 68, Mytilus. 
aC' 
£crn. Muf. Caef. Vind. left. p. 121. niign. fig, A. 
Chemn. conch. 8. tab. ^. fig. 717.— 721. a, b. 
Inhabits American and Indian Seas ; about 8 inches 'pj 
foniething broader ; the infide is beautifully polilhe^* 
produces the true Mother of pearl, and frequently 
Valuable pearls." the outfide foinetimes fea-green or 
or bloom-colour with white rays, or whitifh with green 
when the outer coat is removed it has the fame . ji 
luftre as the infide: tne younger (hells have ears as 
the (hell and refcmble fcallops. 
rhtly 
Unguise Shell roundKh longifudinally ftriate pellucid and A'S 
eared. 
Inhabits the Mufi, Lud, Ulr. n, 
Shell very thin hyaline, with very fine perpendicular pj 
about the fize of a man’s nail; is probably of the S 
ofirca. 
C, Ventrlcofe or convex. 
* Lithe- Shell cylindrical, rounded at both ends. 
phagus. Barbut, tab. \0.fig, 5. Rumpf. Muf. tab, 46. F, 
Argennj. Conch, tab. 26. K. Zoom, tab, J.fiig, 5. 
Johnd ex/ang. tab. i$.fig. 18, 19. 
Bonan. recr. 2. fig. 27 — 29 ? Muf, Kirch, l.figg 27, 28. 
fetiv, amb, aq. tab. g.fig, 1 3. 
Lifier conch, tab, 427. tab. 437. the laft figure. 
Gualt. test. tab. 90, D. Lefier test. fig. 132. 
Born. Muf. Casf, Find. ted. tab. fig. 4. 
Chemn. conch. 8. tab. 82. fig, 729, 730. 
2. Cinnamon colour. Chemn. 8. tab. 82, fig, 730. . 
Inhabits European American and Indian Seas, penetratinS 
eating away corals rocks and even the hardeft marbles : 
an inch broad aiid 3 long marked with arched 
■ ftriae; _/?;<’// black bay or greenilh, within opal-blue*' 
white or perlaceous, The European (pecimens have 
brittle (hell ; the Indian ones are fofter and nearly coris^® 
• Rugofus, Shell rhombic oval brittle rugged antiquated and 
at the ends.. 
Pennant Brit. Zool. iv. tab. 63, fig. 72. 
Schreet. Eir.l. in conch, y. tab. tq.fig. 14. a,b. 
Inhabits Northern European Seas and lakes ; and is ufo***? pfS'* 
lodged in great numbers in lime (lone, each in a 
apartment, with apertures too fmall for the (hell to p ‘%»S 
without breaking the (lone : fiiell about the fize of the 
of the little finger, dirty grey, within half blue 
and marked with very fmall longitudinal ftrix Croffing i*' “ 
verfe wrinkles. P' 
