Modielus. 
Pella, 
Ovata.- 
Pellucida. 
Rofrata. 
Sriata. 
| Pulchella. 
WORMS. TESTACEA., 65. Arca. 25% 
Shell oblong ftriate, and angular anteriorly. 
Inhabits the Mediterranean; refembles Mytilus modiolus, and is 
about the fize of a large bean: within white or pale violet, 
without yellowifh: hinge elongated: valves anteriorly deeply 
ftriate, behind a little longer than the beaks, 
Shell ovate pellucid fubftriate, with a diítinct prominent 
anterior flope: hinge ciliar. 
Inhabits the Mediterranean: white finely polifhed and very mi- 
nute, nearly triangular with fine tranfverfe femilunar ftrie ; 
beaks placed in the middle: flope tranfverfely ftriate: teeth 
fubulate and very fharp: margin without teeth within and 
without. 
Shell ovate with decuffate ftrie, {nowy and covered with a 
ruffet-brown epidermis or {kin: margin gaping. 
Inhabits the Red Sea. Chemn. conch. 7. tab. 54. fig. 538. 
Shell large with an undulate grooved and ftriate pofterior exca- 
vation: probably not of this family. 
Shell pellucid brittie, rounded at each end, obfoletely ftriate: 
teeth of the hinge very fharp. 
Spengler Catal. 1. tab. 10. fig. 11, 
Chemn. conch. 7. t. $5. f. 541.8, b. 
Inhabits Nicobar Iflands: thin, ftraw-colour or brown, within 
brownifh. 
Shell a little convex with tranfverfe ftrie ; the hind-part 
rounded, fore-part extended into an acute beak. 
Martin. Bejch Naturf. 3. tab. 7. fig. 17, 18. 
Schret. flufconcb. tab. 9. fig. 2. 
Chemn. conch, 7. tab. 55. fg. 641. a, b. - 
Inhabits the Baltic and Noraway Seas; refembles the laft. 
Shell = an inch long, 14 bread, covered with @ greenifh fkin : 
beaks minute and bent back. 
Shell lentiform, with very numerous decuffate ftriz, late- 
ritious and reddifíh within: pofterior excavation trian- : 
gular: hinge arched. ' 
Chemn. conch. 7. tab. 58. 
Inhabits the Red Sea: an inch broad, and fomething longer. 
Shell roundifh, biradiate, with tranfverfe arched (rix. 
Inhabits Rumpf. Muf. tab. 47. figs lo 
liz Afra. 
