— 245 — 



lina grumosa constantes, absque aciculis silic. v. calcareis: — 

 Chondrosia^ Halisarca. 



Tr. 2. Sjj o n g iei : e plocenchymate corneo gelinoso 

 constantes, absque aciculis: — Sporfgia, Spongelia, Velaria, 

 Aplysina^ Gorgonickty Hirciiiia. 



Tr. 3. Sili c ifer i: spongiae ex aciculis variis v. granu- 

 lis siliceis, ope materise animalis coadunatis compositae, ad- 

 mixlo plocenchjmale in quibusdam: — Granta^ Schweigge- 

 ra; — Rasjjaila^ Flemmin^ia^ Gjuya, Pxcniera., Sjjongilla, 

 Vioa^ Subiui/es, Donalia^ Tclhya, Lj/icuria, Liihomena, 

 ■Esperia, Areofa, Pachymatisma. 



Tr. ^. Calciferi: spongiae ex acicuhs v. granuhs 

 calcareis et materia animah confecta?, admixto plocenchym. 

 in quibusdam: — Leuconia; Milnea, 



Genera scrutanda: T]\aumasia^ AJcyoncellum, Geodia., L)y- 

 sidea, Coeloptychum^ Sljjhonia, Myj-meciuvn^ Eudca^ Halirhoa, 

 Hippalimus, Cnemidium^ Lymnorea, Chenendopora^ Tragos, 

 Manon, lerea etc. 



Or do II. Xe?i io p liy t a noh. 



Thallus e tubuhs poljpifcris simpl, ramosis v. transverse 

 septatis confectus, carnosus, suberosus, tuberosus, laminaris, 



filaris v. frulicosus, homogcneus v. in axin h durum, 



corneum v. lapideum et corticem moUcm discedens. Gra- 

 nula v- acicuh calcarei, raro sihcei, in cortice sparsi, in axi 



_i conferruminati. Poljpi ovi- et gemmipari, h re- 



tracliles, tentacuhs octonis pinnalis v. papihosis. Yid. Nardo 

 Bistribut. naturaU — dcUa ^classe de Zoofitari^ in Nuovi An- 

 nali delle Sc. naturali, BoIogTia^ 18^45. 



F A M. 5. A L C Y O \ I N I 7iob. 



Thahus tubuloso-carnosus, simpl. lobatus v. ramosus, e- 

 latus V. prostratus, membranaceus v. filaris, homogen. v. axi 

 imperfecto prseditus, acicuhs calcareis < . sparsis v. in axi 

 confertis. Poljpi 8-actinii -i retractiles: — Xenia, Am- 



