!i 



22 



Tab. III, Fig 



5. 



Esperia bihamatifera. 



— 



6. 



do. 



do. 



— 



7. 



do. 



do. 



Tab. IV, Fig 



1. 



Esperia bihamatifera. 



— 



2. 



do. 



do. 



— 



3. 



Cladorhiza 



abyssicola. 



— 



4. 



do. 



do. 



— 



5. 



do. 



do. 



— 



6. 



do. 



do. 



— 



7. 



do. 



do. 



— 



8. 



do. 



do. 



— 



9. 



do. 



do. 



— 



10. 



do.. 



do. 



— 



11. 



do. 



do. 



— 



12. 



do. 



do. 



— 



13. 



do. 



do. 



— 



14. 

 15. 



do. 

 Pachymatis 



do. 

 ma Johnst 



Tab. V, Fig. 



a, To smaa 

 Exemplarer; b, af et Snit, Kiselkugle- 

 skorpen med deri opragende Naale ; c, c, 

 to Mta (<jp-=9Q°); d, en ac 2 sp; e,glst; 

 f større st; g, to gl fra det indre af 

 Svampen ; h, Kiselprismerne, der danner 

 gl; i, et Stykke af Overfladen af enøtf. 



16. Cladorhiza abyssicola fra Hardangerfjord, 

 begge Ender af et Anker. 



1. Geodia par va. 



2. Clavellomorpha minima. 



3. Tethya cranium. 



4. do. do. 



5. do. do. var. infrequens. a, Mta 

 (9<90°); b, Mta (9>90°); c, et 

 Embryo; d, Mta (cp >> 90°) fra Embryo- 

 net; e, et formodentligt yngre Stadium 

 af den samme Naaleform. 



— 



6. 



Thenea muricata. 



— 



7. 



do. do. 



— 



8. 



do. do. 



— 



9. 



do. do. 





10. 



Hyalonema arcticum. a og a', to JSFaale 

 fra Stilken; b, Enden af en saadan Naal; 

 c, ha r tr sp ; d, har sp ; e, ha (5 r-\~ B sp). 



Tab. VI, Eig 



1, 



Beniera simplex. 



— 



2. 



Beniera oblonga. 



— 



3. 



Beniera velamentosa. 



— 



4. 



Beniera tubidosa. 



— 



5. 



Myxilla brunnea. 



— 



6. 



Myxilla flabelliformis. 



— 



7. 



Beniera dubia. 



— 



8. 



Beniera complicata. 



Pl. III, fig. 



Pl. IV, fig. 



Pl. V. fig. 



Pl. VI. fig. 



5. 



Esperia 



bihamatifera. 



6. 



do. 



do. 



7. 



do. 



do. 



1. 



Esperia 



bihamatifera. 



2.. 



do. 



do. 



3. 



Cladorhiza abyssicola. 



4. 



do. 



do. 



5. 



do. 



do. 



6. 



do. 



do. 



7. 



do. 



do. 



8. 



do. 



do. 



9. 



do. 



do. 



10. 



do. 



do. 



11. 



do. 



do. 



12. 



do. 



do. 



13. 



do. 



do. 



14. 



do. 



do. 



15. 



Pachi/mc 



itisma Johnsto' 



16. 



a. Two small 

 specimens, fr, Aspect of a section; the 

 siliceous spherical crust with the pro- 

 jecting spicules, 'c, c, Two Mta (cp — 90°) 

 spicules, d, An ac 2 sp spicule, e, Agist 

 spicule. /, A large st spicule, g, Two 

 gl spicules from the interior of the 

 sponge. h 7 The siliceous prisms form- 

 ing the gl spicules, i, A portion of the 

 surface of a gl spicule. 

 Cladorhiza abyssicola, from the Har- 

 danger fjord. Both extremities of an 

 anchor. 

 Ceodia parva. 

 Clavellomorpha minima. 

 Tethya cranium. 



do. clo. 



do. do. Var. infrequens. a, A 



Mta (cp < 90°) spicule, b, A Mta 

 (cp ^> 90°) spicule, c. An embryon. d, 

 A Mta (cp > 9 f 0°) spicule on the embryon. 

 e, A, presumably, earlier stage of devel- 

 opment of the same spicular form. 

 Thenea muricata. 



do. do. 



do. do. 



do. do. 



Hyalonema arcticum. a and a' , Two 

 spicules from the stem, b, The extrem- 

 ity of such a spicule, c, A ha r tr sp 

 spicule, d, ha r° sp spicule, e, A ha (5 

 r + B sp) spicule. 

 Beniera simplex. 

 Beniera oblonga. 

 Beniera velamentosa. 

 Beniera tubidosa. 

 Myxilla brunnea. 

 Myxilla flabelliformis. 

 Beniera dubia. 

 Beniera complicata. 



