WORMS. TESTACEA. 68. Mytilus. 29 1 
Shell blue ftriate with vaulteii knobs and a white diffepi- 
ment or partition. 
Spenglrr catal rats. tab. ? — 5 " 
Chemn. conch, 8. tab, Sr, fig, 73 ^" ®*b. 737 " *'” 3 ’ 
Inhabits Nicobar Jflandf. ovate ; the anterior part flat, the mid- 
dle convex and gaping with au oval foramen ; the hind-part 
convex : covered with green (kin. 
Shell convex, one of the margins angular ^ the frontal ex- 
tremity crenate, 
I.ijier conch, tab. 205- 
Chemn. conch, tab. 84. fig, 754 " . , . 
Inhabits fimerican Ocean and Red Sea ; i 5 inch long ; ferrugi^. 
nous whitilh yellowilh or brown, fometimes blueilh ; binif 
with 4 or 5 lateral teeth. 
Shell finoothifh, fprruginoiis on the outfide, and bearded at 
the tip. 
Ginann, adf. 2. p. 'fi. tab, 2 ’j . ftgi 169, 
Gualt.ted, tab. ^i./tg H, 2? 
Chemn. conch. 8. tab. 84./;^. 749 ’ 
Inhabits the Mediterranean and Nornuay Seasi anhering to Litho. 
phytes: I of an inch long; under the (kin reddilh-ferraginous 
blue or whitifh, 
Shell fmoothiih violet, the valves (lightly recurved on the 
obtufe (ide and fomewhat angular on the acute fide: 
beaks pointed. 
Pennant Brit. Zool. tab. (ot^.fg, 73 " 
Lister conch, t. 362. f. 200, Barbut. t. II,* f. 6 . 
Lifter an, Ang. tab. t^,jig 28, 
Bonan. recr. 2 . fig. 30. Muf. Kirch. 2 , f. 29. 
Ginann. adr, 2- p, 36. tab. 2 ‘i.fig, 168. 
Paster op. fuhf. p lOI i. ll./i 9— 11. 
Argetrville Zoom. t. 5./, D, E, F, 
Knorr Kergn. l. tab. 4. fig. 5. 6 and 4. t. 15. f. ll 
Pegenf. i.t.y.f.S.t. Ji.f. 58. /, I2. 71, 72. 
Chemn. conch. 8. t 84./ 750, 751, 755. 
2. Lifter Conch, tab, 362. fig. 201. ■ 
3 > Lister conch, t. 362. _/i 202. 
4. Lister conch, t. 363./'. 204, 
5 * Gaalt. test. r. 7. A. 
Inhabits European and Indian Seat ! generally 2-3 inches long, but 
is much larger within die tropics and fmaller more northward; 
found in larg • beds, and geneaally adhering to other bodies 
by means ot the long fliky beard: the fifh affords a rich food, 
but is often extremely noxious to many conftitution?. 
