— 244 — 



d. Halysici: ihallas monilaris, dichotomus, epithalUo 

 microcyto, mesothallio macrocyto, endolhalho amplo e ca- 

 tenuhs tenerrimis, raris; ovula?: — Haljsium. 



F A M. 3. H A L I M E D I X I . 



Thalhis monilaris, novell. virens, dcmum calce incrusta- 

 tus, articuhs saepius compressis, Litis, dichotomo-concatenatis, 

 omnis e tubuhs continuls, e.xcentrice ramosissimis v. superis 

 dichotomo-concatenatis confectus; ovula periphericai': — Ha- 

 limeda^ Udotea, Avrainvillea^ Corallocephalus (Chamctdoris 

 et Espera). 



F A M . 4 . s P O N G I I X I noh. (Amorphozoa Blain v.) 



Thallus conlinuus poljmorphus, cavus, lacunosus v. po- 

 rosus, plus minus elasticus, aquam bibens et projiciens < , ra- 

 rius e gehna sola sohdescente grumosa conslans, saepius e 

 tubuhs corneis ramosis, reticulalis, imphcalis (/ibrae, plocen- 

 chjma) et gehna obductis — v. ex acicuhs sihceis v. calca- 

 reis variis aut granuhs, ope materiae animahs coadunatiscon- 

 fectus. Gemmuke v. ovula (mobihssima? puhi ciUati?) in la- 

 cunis gehnosis pronata et projecta iu prolem novam evolvi 

 visa; ovula dimorpha Spongillae. 



Spongise marinae et quaedam agriohydricse, nunc vigen- 

 tes et fossiles, perquam numerosae, a physiographis priscis et 

 neotericis: Donati, Ellis, Palias, Cavolini, Montagu, 

 Lamouroux, Lamarck, Schweigger, Goldfuss, Gray, 

 Grant, Miln e-Edwards, Laurent, Dujardin, Bower- 

 banh, Hogg, lohnston, Nardo etc. scrutalae sunt, quin 

 tamen natura earum rite dihicidata fuerit. Chemice serico^ 

 pihs V. vasis capiUaribus subanalogLie^ habitu ct textura Co- 

 dio, Hahmedae et Xeniophytis proximae; lacunae ovuhferae 

 quasi polypi amorphi? Adaptavimus genera a Cel. Nardo 

 stabihta, quorum nomina phira, plantis propria, mutanda 

 erunt; addidimus gen. dubia ad calcem. 



Trib. I. Halisar ce /loJ..- spongioe subcarnosae, e ge- 



