F L U S T R A. 



This was brought from the Bahama Iflands by Mr. 

 Mark Catefby, F. R. S. 



I have fome elegant fpecimens from the Eaft Indies, 

 that approach very near to this kind, but they have no 

 radical tubes, and their fides bend inwards. 



*5 



7- 



Fluftra verticillata. 



Fluftra adnata, fcepe 

 fro?idefcens, frondibus li- 



nearibus fubcomprejfis baft 

 attenuatis, cellulis turbi- 

 nates ciliatis, feriebus al- 

 tera fuper alteram difpoji- 

 tis. 



Bajketwork Sea Matt. Tab - 4« 



Fig. a. 



This Sea Matt grows on fu- A * 

 cus's, often fending out flattifli 

 linear branches, narrow at the 

 bafe. Thefe conftft of rows 

 of top-fhaped ciliated cells,, 

 difpofed in whirls, one row 

 above another. 



Tab. 4. Fig. a. A. 



This elegant little Sea Matt I found growing on a red 

 pennated cartilagenous fucus, called Fucus Nereideus, 

 from the Mediterranean Sea. 



The cells when magnified appear furrounded by fharp 

 denticles, with a briftle fituated in the front of each cell, 

 bending inwards like a horn : the mouths of the cells in- 

 cline forward, and their whole femi-tranfparent fubftance 

 appears full of fmall points. I am indebted for this, 

 among many other rare fea productions, to my ingenious 

 and worthy friend Dr. John Fothergill, F. R. S. 



8. Fluftra dentata. 



Fluftra plano-foliacea 

 adnata^ bine cellulis fubo- 

 valibus nitidis, ojculis den- 

 tatis inclinatis. 



Toothed Sea Matt. 



This Sea Matt grows upon 

 fucus's ; the cells compofe one 

 fingle layer : they are nearly 

 oval, and of a fhining color, 



like 



