THE CABINET OF SHELLS. 
Tortuous, - - - twisted, winding. 
15 
Pectinated, - - - -  - like the teeth of a comb. 
Pedicle, or Peduncle,  - - the fleshy support of the 
Lepas. 
Penultimate, - - - the last but one. 
Posterior slope, - - -  - see Areola. 
Pyriform, - - - - pear-shaped. 
Quadrate, - - Me Mal nearly square. 
Ringent, - - . - gaping. 
Rostrum, - - : - the elongated canal of uni- 
valves. 
Securiform, - - - hatchet-shaped. 
Septum, - - - - a partition. 
‘Sessile, - - -  -  -. fixed without a pedicle. 
Sinus, - 6 « - - - - agutter, an excavation. 
Sinuate, - - - - indented, irregular margin. 
Siphon, - - - - - a tube passing through the 
chambers of the Nautilus, 
&e. 
Squamose, - - : scaly. 
Strie, . - - - thread-like lines. 
Sub, (in composition) - approaching to, near. 
Subulate, - - - awl-shaped. 
Succinia, - - - amber-coloured. 
Sulcus, - - - - a grove, or furrow. 
Summit, - - - the top, or apex. 
Suture, - - - the lines between the whorls. 
Tellina, - - - a swift fish. 
Teredo, - - - a borer. 
'Testacea, - - - shells. 
Testaceous, - - - ghell-like. 
