298 WORMS. TESTACEA. 68. Mytilus. 



Purpureus* Shell rounded behind ; pale flefh-colour, purple within: the 

 margin denticulate. 

 Bonan.recr. $.fg. 384. Muf. Kirch. tl'f, 116. 

 Inhabits fhores A Bra/il % 



Saxatilis. Shell ear-fhaped, with granulate wrinkles on the outer fide 

 dilated and rounded. 

 Rumjf Muf tab. 46 D 



Inhabits Amboina> affixed to rocks, and is eaten by Ducks and 

 fwine : fhorter and broader than the joint of a ringer. 



Argenteus. Shell tranfverfely ftriate, rounded at each end, brown, fil, 

 very within: beaks rounded. 

 Inhabits Guah. test. tab. 7. D. 



Tulgidus* Shell narrow (Tuning blufh-colour with violet fpots at the 

 fides: beaks rounded dilated. 

 Argenv, conch, tab. 22. Jig, D, 

 Inhabits the feas of Magellan : mines like mother of pearl. 



Azureus, Shell gibbous azure with yellowifh ftripes beneath : beaks 

 obtufe. 

 Argenv. conch, tab. 2 2. fig. H. 



Inhabits Shell about an inch broad and | long, narrowed at 



the lower margin. 



Murinus. Shell moufe-colour with violet fpots and a broad rounded 

 rofy margin: beaks pointed ftraight. 

 Inhabits Guinea. Argen<v. concb. tab. 22. K. 

 Regcrf. conch. I. tab. 9. fig- 32. 



Tejlaceus. Shell long narrow, covered with a teftaceous fkin, under. 



which it is ihining filvery varied with blue red yellow 



and brown. 

 Inhabits— —Knorr Vergn. 4. tab. i^-jig* 4. 

 Refembles M. modiolus but is larger and far more beautiful. 



Virgatus, Shell dilated outwardly, greenifh-yellow with rofy ftripes: 

 beaks obtufe curved. 

 Inhabits Kncrr Vergn. 4. tab. 2. fig. 2. 



Cotdatuu Shell oblong very thin, white with obfolete ftriae, with a 

 heart-ihaped gape behind. 

 Spengl. Befch. Naturf. 2. tab. 9. A. fig. 3 — 5. 

 Spengl, cataU rain tab. $*fig* 13 — 17* Coll.f. 12. 



Martin 



