CO^CUYLlk—DlTHYllA. 50. 233 



Shell half an inch long, and a quarter broad, brownish-white, 

 narrower towards the beak which curves over the under valve, 

 and ends in an obtuse point, sometimes smooth, but mostly with 

 some rough transverse marks, but no longitudinal ones. 



Anomia testa ovatd subvylindrico-convexd, longitudinaliter ^''"^'^'''• 

 striatd, umbone recurvo. 



Shell oval, somewhat cylindrically convex, and striate longitudi- 

 nally, with the beak curved backwards. 



Mvs. nost. From the roots of Fuci. 



Shell in all respects resembling the last species, but is always 

 marked witli fine rather remote longitudinal raised lines, a suffi- 

 cient distinction of specific character. 



ANOMfA testd suhorbiculari vel oblongd, striis crebris longitu- acuieata. 



dinalibns acideatis. 

 Shell somewhat orbicular or oblong, with numerous longitudinal 



prickly stris. 

 Anomia acuieata. Gmelin, Syst. p. 3346. 



Turton, Linn. Syst. iv. p. 285. 



Chemnitz, viii. p. 92, tab. 77, fig, 702. 



Montagu, p. 157, tab. 4, fig. 5. 



Linn. Trans, viii. p 103. 



Turton, British Fauna, p. 163. 



Pennant, Brit. Zool. iv. p. 233. 



Dillwyn, Descript. Catal. p. 288. 



Turton, Conch. Diet. p. 4. 

 3Jtis. nost. On Fuci, and among rocks. 



2h 



