WORMS. 123 



61- VERMICULUM. Inhabitant allied to a Tcrebella : 

 shell variously sh;?ped, not attached to other bodies. 



65. SEHPULA. Inhabitant a Tcrebella : shell tubular, 

 affixed to other bodies, general I } separated internally 

 by divisions at irregular distances. 



66. TKHKDO. Inhabitant allied to a Terebella : shell cy- 

 lindrical, taper, liexuous,. .lodged .in. wood, with 2 tes- 

 taceous heinispluerieal \alves covering the head of 

 the animal and truncate anteriorly, and 2 lanceolate- 

 ones near the tail. 



67. SABHI.F.A. Inhabitant various: shell tubular, com- 

 posed of particles of sand, broken shells, and other 

 substances, united by a glutinous cement. 



ORDER IV. ZOOPHYTA. 



Composite animals, efflorescing like vegetables. 

 A. With a hard calcaiijus stem. Lithophytes. 



68. MA DUE FOR A. minimal resembling a Medusa: coral 

 with lamellar star-like cavities. 



69. MII.T.EPORA. minimal a Hydra or Polype: coral 

 mostly branched, and covered with cylindrical turbi- 

 nate pores. 



70. CELI.EPORA. Animal a Hydra or Polype : coral 

 somewhat mem 1 l)ranaceous, composed of round cells.' 



71. Isis. minimal growing in the form of a plant: 

 stem stony, jointed; the joints striate longitudinally, 

 united by spongy or horny junctures, and covered with 

 *i soft porous cellular flesh or bark : mouths beset 

 with oviparous polypes. 



B. With a softer stem. Zoophytes. 



72. Go RGO N IA. Animal growing in the form of a plant : 

 .s/fm coriaceous, corky, woody, horny or bony, com- 

 jK)sed of glassy fibres; or stony, striate, taper, dilated 

 ar the base,. covered with a vascular or cellular flesh 

 or bark", and becoming spongy. and: friable when dry : 

 mouths or /lords covering the surface of the stem and 

 polype -bearing. 



73. AI.CYOXI-UM. slnimal generally growing in the form 

 of a plant: stem fixed, lle.shy, gelatinous, spongy ; or 

 coriaceous, covered with polype-bearing stellate 

 cells. 



74. SPO\ { GIA. Animal fixed, flexile, torpid, of various 

 forms, composed either of reticulate fibres or masses 

 of small spines interwoven together, and clothed with 

 a gelatinous flesh full of small mouths on its. surface, 

 by which it absorbs and rejects water. 



75. F LUSTRA. Animal a Polype proceeding from porous 

 ceils : stem fixed, foliaceous, membrauaceous, consist*- 



L2 



