€. (Spongomorpha) ozyclada Kg. Anaud, Chiloe. 411. C, repens 
Kg.n. sp., ubique fere aequierassa (/o—'/30), parum ramosa (ra- 
mulis paucis brevibus hamatis, ubtusis) intricata, rigidala, radicans; 
articulis diametro aequalibus vel duplo longioribus. Port William 
Stanley, Falklands-Inseln. 412. Chaetomorpha antennina Kg. Dän.- 
westind. Inseln. 413. Caulerpa falcata Kg. Dän.-westind,. Inseln, 
414. Halimeda Opuntia Lamour, Ebendaher. 415. Enteromorpha 
acanthophora Kg. ‚San Carlos, Chiloe. 416. E. complanata Kg. Dän.- 
westind, Inseln. 417. E. compressa rev. Triest. 418. E. Novae 
Hollandiae Kg. Port William Stauley, Falklands-Inseln, 419. Phyco- 
seris lobata Kg. Dän. westiud. Inseln. 420. Bryopsis Arbuscula La- 
mour. Ebendaher. 421. 3, ramulosa Mont. Ebendaher. 422, Ecto- 
earpus pusillus Harv. Cherbourg. 423. E. simplieiusculus Ag.? Cap. 
4234. Castagnea contorta Thuret. Cherbourg. 425. Myrionema Leclan- 
cherii Harv. Ebendaher. 426. Syringodium füsforme Kg. n.g. et sp. 
Phycoma filiforme teres simplex e stratis tribus compositum: corti- 
ealiecellularum minutissimarum strato unico, intermedio parenchy- 
matico continuo, medullari parenchymatico cavernoso; cavernis 
maximis; spermatiis sparsis Kg. Nisky, St. Thomas, Westindien. 427. 
Dictyota Bartayrestiiana Lamour. Dän.-westind. Inseln. 428. I). 
Bartayrest, torma angustifolia. Ebendaher. 429, D. cirrosa Kg. 
Ebendaher. 430. Cystosira abrotanifo.ia Ag. Genua. 431. C. foeni- 
culacea Anglor, Ebendaher. 432. Phyliacantha Myrica var, hispida 
Kg. Rothes Meer. 433. Sargassum Boryanum Mont. Triest. 434. 
S. trachyphylium Kg. Dän,-westind. Inseln. 435. Callithannion ver- 
sicolor Ag, Triest. 436. Phlebothamnion Montagnii Kg. Sandy Point. 
Magellans-Strasse. 435 Griffithsia drachyarihra Kg. n. sp., elon- 
gata, setacea, ramis alternis flagelliformibus, articulis diametro bre- 
vioribus. Kg. Cap. 438. Spyridia drachyarthra Menegh. Triest. 
439. Echinoceras julacrum Kg. Insel Lessina, Adriatisches Heer. 
440 E. subspinosum Kg. Triest. 441. Centroceras eryplacanikum 
Kg. Nisky, St. Thomas, Westindien. 442, Ü. erypt. ß. bongiarticu- 
latum Kg. Dän. westind. Inseln. 443. C. leptacanthum Kg. Eben- 
daher. 443, Ptilota sericea Harv. Aberdeen. 445, Iridaea ciliala Kg. 
San Carlos, Chiloe. 446. Acrocarpus spinescens Kg. Cherbourg. 447, 
Polysiphonia multifida Daby? Triest. 448. P. Perreymondi J. Ag. 
Ebendaher. 229. bis. P- elongata Ag. Ebendaher. 449. Hypnea Ris- 
soana J. Ag. Marseille. 450. Sphaerococcus spinosus Ag. Cap. 
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