POLYPI. 
565 
Caryophyllia cyathus. —The Measure Caryophylua. 
Plato CV. fig. 5. 
Turbinate club-shaped, or a solitary stem ; star concave, with 
a papillose centre. 
Section IV. 
With a solid stony polypiferous mass, which is interiorly com¬ 
pact ; with perforated or tubular cells, and destitute of laminte. 
Genus 31.—TUBIPORA.— Linnceus. 
Generic Character. —Stony, and composed of cylindrical 
tubes, straight, parallel, which are separated individually, 
but connected by external transverse partitions; tubes articu¬ 
lated, and communicating by radiating and porous divisions. 
Tubipora musica. — The Music Tueipora. 
Plate CV. fig. 10, 
Having distinct cylindrical tubes, and distant partitions ; of a 
bright scarlet. Inhabits the Indian ocean. 
Genus 34.— MILL IP ORA.— -Lamarck. 
Generic Character. —Interiorly solid, stony, polymorphous, 
branched, or frondescent, provided with simple, cylindrical, 
small, and sometimes scarcely apparent pores, which are per¬ 
pendicular to the axis, or to the expansions of the polypiferous 
mass. 
Millipora informis .— The Shapeless Millipora. 
Plate CV. fig. 11. 
Irregular and solid •, branches thick and nodose. 
Section V. 
With sub-stony polypiferous masses, and crustaceous or fron¬ 
descent expansions ; having small shallow cells, sometimes set 
in a series, and sometimes irregular; and generally placed at the 
surface of the expansions upon marine substances. 
Genus 42.—RETEPORA.— Lamarck. 
Generic Character. —Stony, and interiorly porous, witn thin, 
3 a 
