84 



Smaa Kolonier af denne Art, 3—5 em. boie. fandtes 

 sammen med Lafoea ahietina paa to af Nordli. -Exp."s 

 stationer. 



Pindested. 192. 200. 



Thuiaria pinaster, FJl. Æ Sol. 

 Trophosome. Hydrocaulus enkel, Grene alternerende 

 i et Plan; Hovedstamme og Grene er omtrent lige tykke. 

 Hydrotlieker rørformige, modsat stillede, divergerer sterkt 

 med sin di.stale Del, har en glat. eirkelrund Aabning. 



Gonosome. Ægforniet. Hitn: med 4 Spidser i den 

 distale Ende; Hun: med 4 Ribber, der hver bærer to 

 Pigge na'r den distale Ende. Begge Kjons Gonangier har 

 en rørformig Aabning. 



En lidon (ca. 5 cm. hoi) Koloni af denne Art med- 

 braates fra Xordh.-Exp. Stationens Nummer er ikke Ix»- 

 varet. 



Thuiaria filicuia. Ell. & Sol. 



Trophosome. Hydrocaulus enkel, Forgrening alter- 

 nerende i et Plan. Hovedstammen zikzakbøiet. en Gren 

 udgaar fra hver Boining. Hydrotlieker flaskeformige. mod- 

 sat stillede, divergerer med sin distale Del; Aabningen er 

 glat. eirkelrund, og dens Plan staar lodret paa Grenenes 

 Længderetning. 



Gonosome. Gonangier jiæreformede med en rorfor- 

 niig Aal)ning. 



Af denne Art fandtes ligeledes kun en enkel liden 

 Koloni, ca. 4 cm, hoi og svagt forgrenet. 



Findested. St, 262. 



Thuiaria articulata. Pal. 



Trophosome. Hydrocaulus enkel; Foi'grening alter- 

 nerende i ot Plan. Hydrotlieker flaskeformige, alternerende 

 stillet og helt indleirede i Grenen, med eirkelrund Aabning. 



Gonosome. Gonangier pæreformede med rund Aab- 

 ning, der lukkes med et Laag. 



Et Par meget pene Kolonier, 7 — 10 cm. hoie. fandtes 

 sammen med Lafoea f/raclllliiia. 

 Findested. St. 267. 



Thuiaria argentea. Ell. et Sol. 



Trophosome. Hydrocaulus enkel, Forgrening i et 

 Plan ; Hovedstammen zikzakboiet med Grene udgaaende 

 fra hver Boining. Hydrotlieker flaskeformede, alternerende 

 stillet; Aabningen, der har en spids Tand i Kanten, er 

 rettet ud;ul. 



Gonosome. Gonangier pæreformede med en eller to 

 Spidse i den distale Ende og rørformig Aabning. 



Findested. Ikjendt. 



Small colonies of tliis sjiecies, 3 — 5 cm. high. were 

 found with Lafoea ahietina at two of the N. Atlan. Exp. 

 stations. 



Loeality. Stations 192 and 200. 



Thuiaria pinaster. Ell. & Soll. 



Trophosome. Hydrocaulus simple, branclies alter- 

 nating in Olle plane; the chief stem and branclies are ot 

 about equal thickness. Hydrothecæ tubular, placed oppo- 

 site one another, diverge greatly distally. have a sniooth. 

 circular opening. 



Gonosome. Ovifonn. Male: with 4 spikes at the 

 distal end; fetiiale : with 4 ribs, each bearing two spines 

 near tlie distal end. The gonangia of lioth sexes have 

 tubular openings, 



A small (about 5 cm, high) colony of this species was 

 brought from the X. Atlan. Exp. The number of the 

 station is obliterated. 



Thuiaria filicuia, Ell. Å Soll. 



Trophosome. Hydrocaulus simple, raniificatidii alter- 

 nating in one plane. Main stem zigzagged. a branch star- 

 ting from eveiy angle. Hydrothecæ bottle-shaped, placed 

 opposite one another, diverging distally; the opening is 

 smooth, circular. and its jilane is perpendicular to the axis 

 of the liranch. 



Gonosome. Gonangia ])ear-shaped. with a tubular 

 opening. 



Of this sjiecies also. only one small colony was found, 

 about 4 cm. high. and slightly ramified. 



Loeality. Station 262. 



Thuiaria articulata, Pal. 



Trophosome. Hydrocaulus simple, ramitication alter- 

 nating in one plane. Hydrothecæ bottle-shaped, placed 

 alternately and completely iml)edded in the branch, with 

 circular opening. 



Gonosome. Gonangia pear-shaped, with round opening, 

 whicli closes with a lid. 



Two or three colonies, 7 — 10 cm. high. where found 

 with Lafoea gracilliina. 



Loeality. Stations 267. 



Thuiaria argentea. Ell. & Sol. 

 Trophosome. Hydrocaulus simple, ramitication in 

 one plane; main stem zigzagged, with branches starting 

 from every angle. Hydrothecæ bottle-shaped, placed alter- 

 nately ; the opening, wiiieli has a pointed tootli on its 



margin, is directed outwards. 



Gonosome. Gonangia pear-shaped, with one or two 

 spikes at the distal end, and a tubular opening. 

 Loeality. Unknown. 



