WORMS. TESTACEA. 65. Area. 251 
M 
Shell oblong ftriate, and angular anteriorly. 
Inhabits the Mei/iterrasean ; reiembles Mytilus modiolus, and is 
about the fize of a large bean ; within white or pale violet, 
without yellowiih : hinge elongated: valves anteriorly deeply 
Itriate, behind a little longer than the beaks. 
Shell ovate pellucid fiibftriate, with a diftinil prominent 
anterior floj^e: hinge ciliar. 
Inhabits the Medittrraaean : white finely polifhed and very mi- 
nute, nearlv triangular with fine tranfierle femilumir ftria:.- 
beaks placed in the middle: flope tranfverfely ftriate : teeth 
fubulale and very ftiarp : mai gin without teeth within and 
without. 
Shell ovate with deculTate ftria;, fnowy and covered with a 
rullet-brown epidermis or Ikin: margin gaping. 
Inhabits the Red Sea. Chemn. conch. 7. tab. 54. Jig. 538. 
Shell large with an undulate grooved and ftriate poftenor exca- 
vation : probably not of this family. 
Shell pellucid brittle, rounded at each end, obfoletely ftriate: 
teeth of the hinge very ftiarp. 
Spengler Catal. l. tab. 10. jig. 11. 
Lhemn. conch. 7. t. JJ./i 541' b. 
Inhabits Nicobar IJlandt'. thin, ftraw-colout or brown, within 
browniih. 
Shell a little convex, with tranfverfe ftrix ; the hind-part 
rounded, fore-part extended into an acute beak. 
Martin. Bejeh Naturf. 3. lab. T-fig’ 17, 18. 
Schreet. Jiiifconch, tab. t).Jig. z. 
Chemn. conch, 7. tab. 55. jig. 541. a, b. ^ 
Inhabits the Baltic and Naruuay Seas ; referablcs the laft. 
Shell I an inch long, 1 5 bread, covered with a greenifh Ciin : 
beaks minute and bent back. 
Shell lentiform, with very numerous deculTate ftrix, late- 
ritions and reddilh within: pofterior excavation trian- 
gular: hinge arched. 
Chemn, conch, 7. tab, 58. 
Inhabits the Red Seal an inch broad, and fomething longer. 
Shell roundlfli, biradiate, with tranfverfe arched ftrix. 
Inhabits —RumPf, MuJ, tab. ^ 7 >fig‘ 
I i a 
Afra 
