98 . III. DIST. CHAR. Prototype. 



b. Vegetable parts ; and 



1. Those of the substance ; as 



Entire (integer) undivided; without any slit or opening some 



anomitte liave an entire hinge, and a perforated beak. 

 BEAKS (nates s. umbones} the peaked or prominent parts of 



the shell on each side of the hinge. 



c,) Reflex (reflexce) bent backwards; inclined towards the back 

 or surface of the valves. This direction, so contrary to that 

 which usually takes place in the beaks of shells, we have ob- 

 served in two or three species of anomitte. The term is 

 opposed to 



Incurvated (incurvata?) bent towards each other; and 



Recurvated (recurvatce} bent towards jthe posterior margin. 

 In the Linnean writings, however, the terms recurvatcc and 

 reflexaz appear to be synonymous. 



/.) Divaricate (divaricate} separate; standing at a distance from 

 each other. 



Approximate (approximates} approaching near to each other, 

 but not touching. 



Converging (conniventes) inclined to, and touching each other. 



Incumbent (incumbent es) converging, and one lying over the 



other. 



c.) Spiral (spirales} with each beak twisted like the spire or wreath 

 of an univalve shell. 



Erect (erect <z) the beak of the valve is said to be erect, if it 



rise (the valve being placed with its concavity downwards) per- 

 pendicularly from the hinge. This position takes place in 

 several anomitfe. 



MARGIN (mar go} the extreme edge of the shell, at which the 

 valves separate. The margin is divided into the inferior 

 part, or the margin of the hinge (margo inferior. Linn.} the 

 posterior part, or the margin following the anal depression 

 (margo posterior. Linn.} the anterior part, or the margin 



