NAUTILUS. 351 



linearis. 35. Shell straight, compressed, narrow, 

 jointed and ribbed at the smaller end. 



Nautilus linearis. Montagu Supp. p. 87. t. SO. f. 9* 

 Inhabits the sea-coast near Dunbar, Scotland. Mr. Laskey. 

 Shell minute, white, and is distinguished from N. Legume n- 



by being straight, and ribbed at the smaller end. 



rectus. 36. Shell nearly straight, with smooth, de- 

 pressed joints. 



Nautilus rectus. Montagu Test. p. 197, and Supp. p. 82. 

 t. 19- f- 4 and 7. Maton and Racket, in Lin. Tram. 

 viii. p. 119- 

 Inhabits the sea near Sandwich. Mr. Boys. 

 Shell minute, about one tenth of an inch long ; thick, opake, 

 brown, and nearly allied to N. Legumen. 



