'94 WORMS. TESTACEA. 68. Mytilui 



Inhabits frcfh waters of Europe i refembles the laft but is longer 

 and narrower ; about 5 inches long and 2 J broad: jft,// very 

 thin peilucid, rounded at both ends, green ifh with very fine 

 ttri« parallel with the aperture and a, tew blackifh' wrinkles • 

 within gloffy white blue or yellqwifh and fometimes mining . 

 with lridcicent colours. v 6 ! 



Ducks and Crows are extremely fond of this and the 1 aft fpeciesl 

 crows, when the fhell is too hard for their bills, fly with it to 

 a great heighth, drop the fhell on a rock, and pick out the - 

 meat after the fhell is broken by the fall. 



Shell fmooth ovate membranaceous pellucid, with a termi- 

 nal hinge. 



Inhabits Southern Ocean, Barhut. tab. it. fig. 10. 

 Shell green, very thin, about the iize of a man's nail. 



Shell wrinkled, the valves oblique and dilated in front : 

 margin of the hinge equaling the tip. 

 Inhabits Southern Ocean. Uuf. hud. Ulr. 543. n. 139. 

 Shell red minute convex, with a very fhort comprefled tooth in J 



the hincrc. l 



i'lridis. 



the hinge. 



Jsbus. 



lateral. 



Shell tranfverfely ftriate: beaks gibbous: hinge 

 Inhabits mores of Chili. Molin. Chil. p. 177. 

 Shell about 6 inches long and 3^ broad, covered with a blue fkin, 



under which it is fnowy with a blue tinge: the//> is white 



and a very grateful food. 



■^ ter * Shell groved and fcaly behind. 



Inhabits Chili. Molin. Hist. Chili., p. 177, 

 Shell rough like a Pinna, lefs than the laft, dull blue : the fijk is 

 black and not eatable, 



* Difccn. Shell oval horny fubdiaphanous : the extremities ftriate lon- 

 gitudinally, the middle tranfverfely. 



Donovan s Brit. Shells, i. tab, 25. 



Herman Nat urf. 17. tab. $-Jig. 5 — 8. 



Bom Muf. Ca?f. Vind. teft.p. 121. njigiu 

 k Chemn. Naturf. 10. tab. \.fig- 8. 



Chemn. conch. 8. tab. 86. fig. 764 — 768. 



Scbrset Einl. in conch. 3. p. 444. tab % ty-fig. IC. 



Inhabits European and Southern Seas, affixed to rocks and other 

 fh ells by its beard : fhell fmall brittle femitraniparent, brown 

 with fometimes a mixture of green near the edges, within blue- 

 ifli with a red or greenifh-vvhite tinge: the outride is divided 

 into 3 compartments, the middle of which is marked with ex-' 

 tremely fine tranfverfely llriae : thefi/h is not eatable, with a 

 white foot, fulvous lips, red-brown branchiae and anterior aper- 

 tures, and brown back. 



Hirundo* 



