SERTULARIA, 



4 T 



fome days by renewing the water ; we may then cut off 

 fmall pieces, and put them in a watch-glafs full of fea-water, 

 and in a little time they may be examined in the aquatic 

 microfcope. See the figure in the Phil. Tranf. Vol. 48. 

 tab. 23. lig. b. F. F. where it is mod exactly reprefented, 

 as it appeared alive. This to perfons not acquainted with 

 the nature of Zoophytes will appear a moft furprizing as 

 well as a moft agreeable fcene or entertainment, as I have 

 frequently experienced with perfons, who have accompa- 

 nied me to the fea fide : the propereft and moft portable 

 microfcope for this purpofe I have given a very good figure 

 of in my Effay on Corallines. 



9. Sertularia Thuja. 



Sertularia denticulis di- 

 jlichis alternis apprejjls, 

 ovarii s ovatis marginatis^ 

 canle angulato rigidopani- 

 culatO) ratnulis creberrimis 

 dichotomis attenuatis. 



Sibbald Scot. Illuftr. 



Bcttle-bruJJi Coralline. 



Bottle- brufo Coralline. 



This Coralline has two rows 

 of denticles, clofely adhering 

 alternately to both fides of the 

 branches. The ovaries are 

 oval, with a margin or rim 

 about their openings. The 

 ftem is waved and very ftiff: 

 on the upper-part is a tuft of 

 dichotomous little branches, 

 which grow fmaller at the 

 ends. 



tab. 12. 



Ellis Cbrallin. pag. 10. tab. 5, 

 No. 9. fig. b. B. and in the frontifpiece. 



Sertularia 'Thuja. Linn. Syft. Nat. Ed. 12. p. 1308. 



G 



10. Sertularia. 



