WORMS. TESTACE'A. 68. Mytikis. 
297 
'H. 
Chemfi, conch. 8. iah, 9i^,ftg. 75^. 
Inhabits Shell minute, yellowifti with si mixture of green, 
within a little filvery. 
Shell ova! rufous ftriatc, with a crcnulate margin. 
Chemn. conch. 8. tab. 85 ftg. 761, . • 
Inha bits the feas of Greenland, affixed to rocks by a bronzed 
byffus or beard, and is the food of the Anas hyemalis-and hi(- 
trionica; /if// inflated fcmipellucid frnooth, covered with a 
bro'An skin under vVbkh it is white and margaritaetous 
within. 
Shell thin' ffightly weJged, -vvithin reddifli : beaks recurved 
and large. 
Liter conch, tab 12. 
Inhabits frefh waters Europe-, refembles M. anatinus, and is 
probably not a diftintt Ipecies. 
Shell oblong narrow wi h very fine tranfverfe ftrise: one 
fide cmarginate, the other rounded: beaks prominent 
curved. 
Lifter conch, tab. fig. 197. 
Inhabiti— d/if// minute brown. 
Shell broad Ihort and rounded behind : beaks conic protu- 
berant. 
rnha‘'ifs— ././er fo«f/>. tab. -xfx.ftg. 199. b. 
f.lein 0/tr. tab. <).jig. 27. />• 129. 
Shell broad and covered with a rough rugged yellow coat, 
within milky. 
Bonan. recr. and Muf. kirch. -2.. fig. 17. 
Inhabit^ the Per fan Sea ; thrice as broad as it b longr' 
Shell broad very fmooth, flammeous or rofe-colour with 
white bands; beaks, obtule. , 
Bonan ree^r, i.ftg. 35. Muf. Kirch. 2.. fig. 34. 
Inhabits Portugal ; thrice as broad as it is long. 
Shell pellucid fliining, bluelfli with a claret-colour and pale 
red band. 
Bonan. recr. 3^5^. Muf, Kirch, Z.J. 106. 
Inhabits Brafl, twice as broad as it is long. 
Shell broad and rounded at both ends, claret-colour with 
undulate blueilh and greenilh Itrise : margin ferrate. 
Inhabits the Portuguefe Sea-, longer than M. pidus. 
VOL, IV.— P p Pur, 
