67 



Found on the fossil bodies, such as echinites, belemnites, &c. 

 of the environs of Paris. 



2. Fl. reticuiata. — Formed of moderately thick fronds, with cells on 



both sides ; the cells long oval ; the septa rather prominent ; 

 and the mouth rather transverse. — Desmarets and Le Sueur, 

 Bull, des Sc. 1814, p. 53, PI. ii. fig. 4. 

 Found in the sands of the environs of Valogne, with the bacu- 

 lites, belemnites, &c. 



3. Fl. quadrata. — Incrusting and radiated ; cells formed in squares 



or parallelograms. — Desmarets and Le Sueur, Bull, des Sc. 

 1814, p. 53, PI. ii. fig. 10. 

 On the cast of a fossil vivalve. 



4. Fl. crassa. — Incrusting ; thick ; v/ith septa prominent, but de- 



pressed upwards ; the cells short ; a large crescent-formed 

 mouth. — Desmarets andLe Sueur, Bull, des Sc. 1814, p. 53, 

 PI. ii. fig. ] . 

 On a fossil oyster of Grignon, 



5. Fl. cretacea. — Incrusting ; thick ; with ovately oblong cells. — 



Desmarets and Le Sueur, Bull, des Sc. 1814, p. 53, No. G, 

 H. ii. fig. 3. 

 On a fossil murex in the environs of Plaisance. 



6. FL utricularis. — Incrusting ; with rather depressed ovate cells, 



widest behind ; the mouth small, and placed forwards. — Des- 

 marets and Le Sueur, Bull, des Sc. 1814, p. 54, PI. ii. fig. 8. 

 On fossil echinites of the chalk. t 



In addition to these, M. Lamouroux particularizes the 

 following : 



7. Fl. hifurcata. — Foliaceous ; the fronds dichotomous, with bifiir- 



cated summits, and set with hexagonal cellules on both sui-- 

 faces.— Desmarets and Le Sueur, Bull, des Sc. 1814, p. 53, 

 PL ii. fig. 6. 



8. Fl. microstoma. — Incrusting ; thin ; with oval, slightly convex, 



indistinct cells ; the mouth very small and round, and placed 



"t" Histoire des Polypiers coralligenes flexibles, vulgairement 

 nommes Zooph)i;es, par J.V.F. Lamouroux, D.E.S. Caen, 1816. 



