206 WORMS. :ZO(>raYTA. 11. 72. 



649. C. pumicosa. Parasitical, very brittle* consisting- of 

 prominent cells unarmed at the mouth. 



Ellis Corallines p. 75. tab. vj.f. f. F, 



Refcmblcs the last, but is more brittle, left globular, md the 

 mouths of the cells are not invested with fpines. 



71. ISIS. Coral. 

 65,0.. I. Entrocha. Stem testaceous, Cylindrical* with 

 ..orbicular perforated joints, and whorled forked 

 branches. 



Encyclop. Perihensis tab. A37. Jig. *e. 



31ost freqwaatly found petrified. Stem about the thicknefc of t 



.finger, with crowded flat orbicular joints perforated in the centre; 



; the perforation pentangular, with the disk faintly striate from the 



. centre 1 outer-bark or flesh unequal, and furrounded with a row 



of tubercles : branches thin, forked, continued and not jointed. It 



is probable therefore, that thofe fossile bodies called Encrochi, are 



petrified fpecimens of this coral. 



,72. GORGONIA. Sea-fan. 

 651 .' G. Placomus. "Branchiiig both ways, with flexuous 

 rarely anastomosing branches covered with conic 

 Morels. 



Ellis Coral* p. 6jt. r. 27./. A. i Morlase Gornw. t. 24,/. 1 . 

 • Coral erect, -2.-feet.high.-or more, woody, yellow, ted or grey? 

 Ranches flattish, bendingdrreguiarly towards each other* and rarely 

 uniting : Jlorets wart-like, furrounded -at the -top wkh fmall 

 fpines. 



652. G.viminalis, Slender, branched : florets seated all 

 round the stem, each with a large valve and several 

 smaller-ones. 



jSow., Miscell. t. 40. Seland. and Ell. Zoeph. t, 12./. 1. 



Coral a foot high, with a yellow bark and black liorny bone: 

 branches' long, slender s Jlorets white, a little prominent, with 

 ,8 claws. . , 



653. G .^verrucosa. Bifariously branched, with round 

 fiexnous branches, and a whitish caicarious bark 

 covered with whitish prominent florets, 



Phi/osop. Transact. 44. p. 51. t. 20. and 50. t. 34./. 19. a. 



Coral a foot and a haff high or more, fan-shaped, dirty white or 

 ffrey wrhen dried -."bone of aXtibstance between wood or horn. 



654* G. Ameps. Slightly branched, with flat stem and 

 branches, each with a row of florets along both the 

 margins. 



Ellis Coral, p. 68. tab. 27./. g. n. 2, 



Coral nearly 2 feet high, of a fine violet-colour when recent, 

 yellowish or whitish when dry : bone roundish, fmall at the ends, 

 of a horny or leathery texture. , , « ■■ 



655 G. Flabellum. Reticulate, with the branches com- 

 pressed on the inner-side : back yellow or purplish : 

 bone black, horny and slightly striate, on the larger 

 branches. 



Venus's Fan. Ellis Coral. />.6t. tab. 26. A. . 



1 Grows fometimes to feveral feet high and expands into a large 

 furface, fleshy, horny, black* clothed when fresh with a whitish or 

 •rey bark : pores irregularly placed, but generally in the form of a 

 *uinctt«* v JniA vtitfMchv pinnate, and by meani of the f *Ucc 



