of Corals, ^c, pi 



about one-half deep in the Stone, not always continued in a 

 ftreight Line, or to the fame Depth, of the fame Diameter, 

 but a little fianting or curved ; and of a larger or lefs Bore or 

 Depth, according to the Size of the Animal inhabiting each 

 Funnel. Thefe Tubes appear opened length-ways in the per- 

 pendicular Secftion at B. B. And the different Bores may be 

 fcen in the tranfverfe one at C. 



Upon moft of the Cells, we obferve a little Cover, or 

 Operculiwi of Sand ; which, it is probable, the Animals form 

 for their Security and Defence, when they retreat from the 

 open Funnel-like Part into the Tube. 



Thefe Tubes, as hath been obferved above, are not of thef 

 fame Dimendons, nor always ftreight : But in this they all 

 agree, that their Bottoms are clofed up, the Animals filling 

 up behind;, as they advance forward, by a conftant Appoli- 

 tion of fandy Particles, united together by a glutmous Mat- 

 ter iffuing from them. 



The Animals that ere^l thefe connedied Habitations, when 

 examined by the Microfcope, are remarkable. 



Fig. ^, b^ reprefent them in their natural Size. 



Fig. c, d^ the fame magnified, from whence it appears 

 they are of the Scolopendra Kind. 



The Head fe^ fj confifts of three oval Rows of flat flifF 

 Quills, of a fine Pearl-like Polifh. Thefe are moveable, at 

 the Will of the Animal, in different Directions, and for dif- 

 ferent Purpofes. In the longitudinal Slit, that divides thefe 

 three Rows, is the Mouth, towards which the inner Row is 

 inclined. Each Row of Quills is divided into two Parts, and 

 is moved by different Mufcles. . 



The two Mufcles of the outward Row appear immediately 



N 2 under 



