I 



110 



lig fra Bugulaerne, men har dog troet at burde henføre 

 den til Bugula-Slægten. Vi formene, at denne Art, lige- 

 saalidt som den anden af os beskrevne, nemlig K.Smittii, kan 

 med Kette optages i Bugula-Slægten, da de dog væsentlig 

 adskille sig fra denne. Ikke alene Zooeciernes Form og 

 den eiendommelige Kodtraadsformation, hvorved en Gre- 

 nene sammenbindende Membran dannes, men ogsaa det 

 særegne Muskelapparat, hvormed hvert Zooecium er for- 

 synet, og som tjener til Bevægelse for dette, fjerner disse 

 vore to Arter i saa høi Grad fra Bugula-Slægten, at vi 

 finde det vel begrundet at danne en ny Slægt for dem. 



FORKLARING OVER FIGURERNE: 



Tab. 3, Fig 12. Kinetoskias Smittii, naturlig Størrelse. 



Fig. 13. En Gren noget forstørret; a, a Zooecier; b Polypid. 



Fig. 14. Et Zooecium med Polypid, stærkt forstørret; a Zooecium; 

 b Polypid; c Mave; d Retractor. 



Tal). 12, Fig. 4. K. Smittii. En Gren forstørret, seet fra den 

 bagerste Flade; a, a Forlængelse af Rodtraaden; b den tre- 

 kantede Hudlap; c, c T verstrib erne paa Zooeciernes nederste, 

 bagerste Flade; d, d Tornen paa det øverste, yderste Hjørne; 

 e Mtindaabning ; f spiralförmig Retractor; g Aviculariet. 



Fig. 5. Et Avicularium, forstørret. 



Fig. 6. En Gren lidt forstørret; a, a Apophysen; b,b Muskler; 



c, c Ooecier; d membranagtig udvidet Rodtraad mellem to 



Grene. 

 Fig. 7. En Gren lidt forstørret, seet fra Siden for at vise Musklerne 



Fig. 8. Et Stykke af en Gron, stærkt forstørret; a, a Apophyse; 

 b } b Muskel; c, c to Apophyser paa et Zooecium; dyd den 

 trekantede Hudlap ; e, e den membranagtige Udbredning af 

 Rodtraaden. 



Fig. 9. Kinetoskias arborescens, naturlig Størrelse. 



Fig. 10. Nogle Grene, lidt forstørret. 



Fig. 11. En Gren fra Bagsiden, forstørret; a, a Rodtraaden ; b Tver- 

 striberne paa Bagsiden af Zooeciet; c den trekantede 

 Hudlap; d,d Avicularier; e Rodtraadens Udbredning imel- 

 lem to Grene; / Rodtraadens Udbredning imellem to 

 Zooecier. 



Fig. 12. To Grene fra Forsiden, forstørret; a, a Rodtraaden; 

 b f b Kalkpunkter paa Zooeciets forreste Flade; d, d Avicu- 

 larier; e, e Mundaabning; f u den trekantede Hudlap ; 

 f, f Apophysen; f to Apophyser. 



Fig. 13. Et Avicularium, seet fra Siden, forstørret, 



Fig. 14. Et Avicularium, seet nedenfra, forstørret. 



the Bugulas; but he has considered that he ought to 

 refer it to the Bugula-genus. We presume that this spe- 

 cies can not, any more than the other described by us 

 namely K. Smittii, be properly admitted into the genus Bu~ 

 gula; as they are essentially different from it. Not only 

 the shape of the zooecia, and the peculiar formation of 

 the rootlets, by which a membrane connecting the bran- 

 ches is formed, but also the peculiar muscular apparatus 

 with which each zooecium is provided, and which serves 

 to move it, separate these our two species so widely from 

 the genus Bugula that we find the formation of a new 

 genus for them fully authorised. 



EXPLANATION OF THE FIGURES. 



Tal). 3, fig. 12. Kinetoskias Smittii, natural size. 



Fig. 13. A branch slightly magnified: a, a zooecia; b polypid. 



Fig. 14. A zooecium with polypide strongly magnified, a zooe- 

 cium; b polypid; c stomach; d retractor. 



Tab. 12, fig. 4. K. Smittii; a branch magnified viewed from the 

 posterior surface: a, a continuation of the rootlet; b the 

 triangular lobe of skin; c, c transverse stripes on the 

 lower posterior surface of the zooecia; d, d the spine on 

 the upper outer corner; e the oral aperture; f spiral 

 retractor; g the aviculary. 



Fig. 5. An aviculary, magnified. 



Fig. 6. A branch slightly magnified: a, a the apophysis; b,b the 

 muscle; c, c ooecia; d membranous enlarged rootlet be- 

 tween two branches. 



Fig. 7. A branch, slightly magnified, viewed from the side to 

 shew the muscles. 



Fig. 8. Part of a branch strongly magnified: a, a apophysis; 

 by b muscle; c, c two apophyses on a zooecium; d, d the 

 triangular lobe of skin; e, e membranous enlargement of 

 the rootlet. 



Fig. 9. Kinetoskias arborescens, natural size. 



Fig. 10. Some branches slightly magnified. 



Fig. 11. A branch from the posterior side, magnified: a, a the 

 rootlet; b the transverse stripes on the posterior side of 

 the zooecium; c the triangular lobe of skin; d, d the 

 avicularies; e enlargement of the rootlet between two 

 branches; f enlargement of the rootlet between two 

 zooecia. 



Fig. 12. Two branches, front view, magnified, a, a the rootlet; 

 by b calcareous specks on the anterior surface of the 

 zooecium ; d, d avicularies; e, e oral aperture; f" the trian- 

 gular lobe of skin; f, f the apophysis; f two apophyses.. 



Fig. 13. An aviculary viewed from the side, magnified. 



Fig. 14. An aviculary viewed from below, magnified. 



