216 WORMS. ZOOPHYTA. 78. Serfularia. 



Stem about' 3 inches high, alternately pinnate: dtntictcs near 

 together, femiorbicular. 



733. S. setacen. Stem simple, oblong, pinnate : denticles 

 obsolete, remote, along the upper-side of the bran- 

 ches : vesicles oblong, axillary. 



llis Coral, t. 38.7. 4. Shaw Nat. Miscelt. t. 71. 



About half the size of the former: branches a little curved 

 downwards : vesicles erect, tubular, at the angles of the 

 branches. 



134. S. polyzonias. Stem loosely branched : denticles 

 alternate, ovate-oblong, undulate round the top : 

 vesicles obovate, with concentric wrinkles. 



Ellis Coral, p. 5. n. 3. tab. 2./. a. A. b. B. 



St<m erect or climbing, 3 or 4 inches long, pale yellow. 



735. S. Lichenastrum. Stem simple, alternately pinnate : 

 denticles alternate, obtuse, in 2 appressed rows along 

 the stem and branches : vesicles oval, with a 

 lid. 



Ellis. Corall. p. 1 1 . n. i o. t. 6. Soland. a*d Ellis p. 42. n. i o. 



Stem erect, jointed, compressed : branches alternate, nearly 

 horizontal.. 



736. S.imbricata. Stem slightly branched: denticles 

 obsolete : vesicles oblong, slightly clavate, irregu- 

 larly imbricate along the branches. 



Adams Linn. Transact. \.p, 11. tab. a./. 5-11. 



Stem cylindrical, about 3 inches high : vesicle s placed in 2 rows 

 along the fmaller branches, but irregularly imbricate towards 

 the tip. 



B. Stem crustaceans, inclining to stony, composed of rows of 

 cellular denticles, without distinct vesicles, in the place, of 

 which arc small globules. Cellaria. 



737. S. Bursa. Stem branched, dichotomcus : denti- 

 cles opposite, compressed, truncate, wedge form, 

 with a small clavate tube at top. 



Eltis. CcralL p. 41. tab. 22. n. 8./. -a. A. 



Minute, flexible, tranfparent, adhering to Fuci : denticles cari- 

 nate, appearing in pairs like the pods of the Shepherd's purfe. 



738. S. loriculata. Branches erect, dichotomous : denti- 

 cles opposite, obliquely truncate, nearly obsolete. 



'Ellis Corallines p. 40. n. 7. tab. 21. /. b. B. 



Stem much branched : denticles opening obliquely. 



739. S.fastigiata. Branches erect, forked, flat-topped: 

 denticles alternate, pointed, with their opening on 

 one side. 



Ellis Corallines p. 33. n. i. tab. 18, 



Denticles with a black fpot in the middle of the mouth. 



740. S. aviculnria. Branches forked : denticles point- 

 ing one way, with 2 mucronate beak-like appen 

 dages : globules sessile, mucronate. 



Ellis Corallines p. 36. n. 2. tab. so./, a. A. 



Denticles with 2 projections refembling a bird's beak wken 

 open : globules testaceous, with a fpine at the bafe. 



741. S. scruposa. Branches forked, creeping: denticles 

 alternate, angular, spiaous. 



