108 



Fig. 69. 70. Den gaffelformige Klubbe er takket, 0.136"™ 

 lang, 0.056""" bred foroven, Tab. XVI, Fig. 1, og den mon- 

 strøse Dobbeltstjerne med lange IJdlobere er 0.124""" lang, 

 0.081""» bred i Enderne og 0.020""" bred paa Midten, der 

 næsten er nogen. Tab. XVI, Fig. 2. 



Øverst i Stammens Coenenchym sees væsentligst 

 meget store, takkede Koller og Spindler; de første ere 

 0.236™" lange, 0.076""» brede foroven, Tab. XVI, Fig. 3, 

 de siclste ere 0.2 12™ lange, 0.064""" brede, Tab. XVI. 

 Fig. 4. I Grenenes Coenenchym sees yderst sparsomt en 

 Firling i fordreiet Korsform men rigt ornament erct. hvis 

 L;engdestok er 0.140""" og Tverstok 0.092""", Fig. 5, 

 enkelte tynde, takkede Spindler, 0.132""» lange, 0.036""" 

 brede, Fig. 6, samt enkelte Dobbeltstjerner med bladede 

 Straaler, 0.132""" lange, 0.092»"" brede i Enderne, 0.028™ 

 brede paa Midten, Fig. 7. 



Polyperne have paa deres udvendige Side et Ectoderm, 

 ligt det, som tindes paa Stammen, kun danne Cellerne 

 neppe mere end to Lag; indenfor Eetodermet er det sæd- 

 vanlige Bindevævslag, fra hvis indre Flade udgaa Septa, 

 der fæste sig paa Svælgets ydre Flade. Paa Septa iagt- 

 tages de almindelige Muskler, saaledes nemlig, at paa den 

 ene Flade sidde Længdemuskler og paa den anden Tver- 

 muskler, hvilke begge Muskellag gaa over paa Svælget. 

 Hele den indre Flade af Bindevævet, Septa og Svælgets 

 ydre Side er beklædt med Endothel, bestaaende af runde 

 Celler med en rund Kjerne og Kjernelegeme, Tab. XV, 

 Fig. 19, e. Tab. XVI, Fig. 29, a. 



I Eetodermet og tildels nedsænket i Bindevævet ri- 

 en meget rig Spikelafsætning, Tab. XVI, Fig. 29. c. " Paa 

 Bagkroppen findes hovedsagelig Spindler og Klubber. 

 Spindlerne ere i Almindelighed lige og takkede, kun enkelte 

 ere næsten glatte, ligesom en og anden er krummet; de 



ere fra 0.060—0.184'""' lange og fra 0.008— 0.036' brede, 



Tab. XVI, Fig. 8 — 12. Klubberne ere stærkt takkede, 

 dels lige, dels krummede; de ere fra 0.120 — 0.196""" lange 

 og fra 0.048—0.076""" brede foroven, Tab. XVI, Fig. 

 13 — 15. Forkroppen har tor Storstedelen baade krumme 

 og lige, takkede Spindler, samt enkelte takkede Koller, 

 forovrigt nærme Spindlerne sig af og til Kølleformen. 

 Spindlerne ere fra 0.136—0.264""" lange og fra 0.028— 

 0.044""" brede paa Midten, Tab. XVI, Fig. 16—20. 

 Kollerne ere 0.328""" lange, 0.044""" brede foroven, Fig. 21. 



.0020"»» in breadth at the middle (Pl. XV, rig. 68). The 

 fusees are extremely spicate; the spikes are frequently 

 split, and then acquire a foliated appearance (Pl. XV. 

 figs. 69. 70). The furcate clavates are spicate, and mea- 

 sure 0.1 36""" in length. and 0.056""" in breadth above 

 (Pl. XVI, fig. 1); the immense bistellate, with long 

 projections, measures 0.124""" in length, 0.081""" in breadth 

 at the extremities, and 0.020""" in breadth at the middle, 

 whieh is almost bare (Pl. XVI, fig. 2). 



In the sarcosoma of the uppermost part of the stein. 

 verv large, spicate subclavates and fusees are the forms 

 principally met with ; the subclavates measure 0.236""" in 

 length. and 0.076""" in breadth above (Pl. XVI, fig. 3); the 

 fusees measure 0.212""" in length. and 0.064" 1 " 1 in breadth 

 (Pl. XVI. fig. 4). In the sarcosoma of the branches there 

 is observed, very raivly, a quadruplet having a twisted 

 eruciform, but richly embellished; its longitudinal arm 

 measures 0.140""", and its transversal arm 0.092""" in 

 length (Pl. XVI, fig. 5); also, some thin spicate fusees 

 ■uring 0.132""" in length, and 0.036""" in breadth 

 (Pl. XVI, fig. 6) and. further, some bistellates with foliaté 

 rays, measuring 0.136""" in length, 0.092""" in breadth at 

 the extremities, and 0.028""" in breadth at the middle 

 (Pl. XVI, fig. 7). 



The polyps have. on théir exterior side, an ectoderm 

 similar to that found on the stem. except that the cells 

 form scarcely more than two layers. Inside of the ecto- 

 derm, there is the usual connective-tissue layer. from whose 

 inner surface septa proceed, whieh secure theniselves to 

 the outer surface of the gullet. On the septa. the usual 

 muscles are observed thus, on the one surface the longi- 

 tudinal muscles are plaeed, and on the other surface the 

 transversal muscles, both of whieh muscular layers pass 

 over to the gullet. The entire inner surface of the con- 

 nective-tissue, the septa, and the outer surface of the 

 gullet, is elothed with endothelium, eonsisting of globular 

 cells containing a globular nucleus and nucleus body 

 (Pl. XV. fig. 19, e. Pl. XVI. fig. 2\K a). 



In the ectoderm. and partly embedded in the eonnec- 

 tive tissue, there is a very abundant spicular deposit 

 (Pl. XVI, fig. 29, c). The spicules found on the posterior 

 body are, principally, fusees and clavates. The tusees are 

 generally straight and spicate, only a few of them are 

 almost smooth. whilst. also. now and again, there is a 

 curved one; they measure from 0.060 — 0.184""" in length, 

 and from 0.008—0.036""» in breadth (Pl. XVI, figs. 8—12). 

 The clavates are strongly spicate, partly straight, partly 

 curved; they measure from 0.120—0.196""" in length. and 

 from 0.048—0.076""" in breadth above (Pl. XVI, fig. 13—15). 

 The greater part of the anterior body has both curved 

 and straight spicate fusees, also a few spicate subclavates; 

 the fusees in other respects approach, oceasionally, to the 

 subclaviform. The fusees measure from 0.136 — 0.264""" 

 in length, and from 0.028—0.044""" in breadth at the 

 middle (Pl. XVI, figs. 16 — 20). The subclavates measure 

 0.328""" in length, and 0.044»'"' in breadth above (Pl. XVI, 

 Hg. 21). 



