109 



Paa Tentaklerne findes foruden Spindler, lig dem paa 

 Forkroppen, men mindre, takkede Klubber og enkelte 

 andre, noget fladere, takkede Spilder, der ere fra 0.048— 

 0.088™» lange og fra 0.012—0.024™- brede, Tab. XVI, 

 Fig. 22—24. Klubbeme ere fra 0.064—0.096""" lange og 

 fra 0.020— 0.036"™ brede foroven, Fig. 25—28. 



Foruden Kropsvæggen er Septa og Svælget udstyret 

 med Spikier. I Septa ligge Spiklerne omtrent i Midten 

 af Bindevævsblaclet, følge Ernæringskanalerne og ere om- 

 givne af Celler, lig dem, der beklæde Kanalerne, Tab. XVI, 

 Fig. 29. Formen af Spiklerne er noget forskjellig; hyp- 

 pigst sees smaa, takkede Spindler og Klubber, Fig. 29, h. 



Svælget er cylindrisk og forsynet med 6 Dobbelt, 

 rækker og to Enkeltrækker Spikier, Fig. 30. Det er mod 

 Bugsiden, at de to enkle Rækker findes, og i disse ligge 

 Spiklerne langt fra hveiundre, Fig. 30, a. Spiklerne paa 

 Svælget have Fonnen al Spindler, Klubber, Tapper, 

 Drueklaser og Kors. Spindlerne ere fra 0.096— 0.1 68"™ 

 lange og fra 0.020-0.028"™ brede, Fig. 31-34. Klub- 

 berne ere fra 0.112—0.116"™ lange og fra 0.040—0.056'"™ 

 brede foroven. Fig. 35—38. Drueklaserne ere 0.160'""' 

 lange, 0.064"™ brede paa Midten, Fig. 39. Tapperne ere 

 0.086"™ lange, 0.036'"'" brede foroven, Fig. 40, og Korsene, 

 der ere yderst sjeldne, have en Længdestok, som er 0.104"™ 

 og en Tverstok, 0.056"™, Fig 41. 



Paa Svælgets indre Flade, der er foldet paatvers, 

 findes langs Bugsiden Svælgrenden, som er temmelig vid, 

 forsynet med Pidskeceller, Tab. XVI, Fig. 29, cl. Den 

 øvrige Del af Svælget er beklædt med et cilierende Epithel, 

 der for Størstedelen er Fortsættelse af Ectodermet, og 

 imellem hvis Celler sees aflange, encellede Slimkjertler, som 

 tidligere ere omtalte for Svælgets Vedkommende. 



Farven. 



Farven gul, spillende lidt i det Brune. 



Findested. 



Station 35. Mange Exemplarer. 



Slægtskarakter. 



Zoanthodemet træ- eller buskformet. Stammen 

 grenet. Grenene dels udelte, dels delte i Smaagrene. 

 Polyperne cylindriske, retraktile, med en lang og spikelrig 

 Forkrop. Stammen og Grenene samt deres Coenenchym 



On the tentacles there are found, besides fusees like 

 those of the anterior body but smaller, also, spicate clav- 

 ates, and a few other, somewhat flatter, spicate spicules ; 

 they measure from 0.048 — 0.088'"'" in length, and from 

 0.012—0.024""" in breadth (PI. XVI, figs. 22—24). The 

 clavates measure from 0.064—0.096™" in length, and from 

 0.020—0.036"™ in breadth above (PI. XVI. figs! 25—28). 



Besides the wall of the body, the septa and the 

 gullet are also furnished with spicules. In the septa, the 

 spicules are placed about the middle of the connective-tissue 

 membrane and follow the course of the nutritory ducts, and 

 they are surrounded by cells like those that cloth the ducts 

 (PI. XVI, fig. 29). The form of the spicules is somewhat 

 variable, but is most frequently spicate fusi- and clavi-form 

 (PI. XVI, fig. 29, 6). 



The gullet is cylindrical, and it is furnished with 6 

 double series, and 2 single series of spicules (PI. XVI, 

 fig. 30). It is towards the ventral side that the 2 single 

 series are found, and, in these, the spicules are placed' far 

 apart from each other (PI. XVI, fig. 30, a). The spicules 

 on the gullet have the forms of fusees, clavates, cones, 

 racemates, and crucifixes. The fusees measure from 

 0:096—0.168"™ in length, and from 0.020—0.028""" in 

 breadth (PI. XVI, figs. 31 — 34). The clavates measure 

 from 0.112—0.116"™ in length, and from 0.040—0.056"™ 

 in breadth above (PL XVI, figs. 35—38). The race- 

 mates measure 0.160"™ in length, and 0.064'"'" in breadth 

 at the middle (PI. XVI, fig. 39). The cones measure 

 0.086™'" in length, and 0.036™- in breadth above (PI. XVI, 

 fig. 40) and the crucifixes, which are very rare, have a 

 longitudinal arm which measures 0.104'"™, and a transver- 

 sal arm which measures 0.056"™ in length (PL XVI, fig. 41). 



On the inner surface of the gullet, which is trans- 

 versally folded, the gullet-groove is found along the ventral 

 side; it is pretty wide, and is furnished with flagelliform- 

 cells (PL XVI, fig. 29, d). The remainder of the gullet 

 is clad with a ciliating epithelium which, for the greater 

 part, is a continuation of the ectoderm, and between whose 

 cells oblong unicellular mucous glands are observed, which, 

 as regards the gullet, have already been referred to. 



Colour. 



The colour is yellow, shading a little to brown. 



Habitat. 



Station Xo. 35. Many specimens. 



Generic characteristics. 



The Zoanthodem, arboraceous, or fruticose. The 

 stem ramous. The branches, partly, unramified, partly, 

 ramified into branchlets. The polyps cylindrical, retractile, 

 with a long anterior body rich in spicules. The stem and 



