Geodia, Lamarck. 



271 nodastrella, Carter. 

 Corallistes, O. Schmidt. 



272 borealis, Carter. 

 Arabescula, Carter. 



273 parasitica, Carter. 

 Craniella, O. Schmidt. 



(46) cranium, Mull. 



Corticium, O. Schmidt. 



274 abyssi, Carter. 



275 parasiticum, Carter. 

 Halichondria, Fleming. 



276 abyssi, Carter. 

 Isodictya, Bowerbank. 



277 spinispiculum, Carter. 

 Microciona, Bowerbank. 



278 planum, Carter. 

 Hymeraphia, Bowerbank. 



(74) vermiculata, Bow. 



Cladorhiza, M. Sars. 



279 abyssicola, M. Sars. 



280 var. corticocancellata, Carter. 

 Chondrocladia, Wyv. Thomson. 



281 virgata, Wyv. Thorn. 

 Stylocordyle, Wyv. Thomson. 



282 stipitata, Carter. 

 Quasillina, Norman. 



(41) brevis, Bow. 



Tentorium, Vosmaer. 



283 semisuburites, O. Schmidt. 

 Halisarca, Dujardin. 



284 cruenta, Carpenter. 



VI. Norwegian Sponges, collected by 



myself, the Tetractinellida named by Sollas. 

 I have also a very large collection of unexamined 

 specimens. 



Craniella, O. Schmidt. 

 (46) cranium, Mull. 



Thenia, Gray. 

 (269) muricata, Bow. 

 Normania, Bow. 



compressa, Bow. 

 Dragmastra, Sollas. 

 Normani, Sollas. 



(38) 



28* 



286 



287 



Stryphnus, Sollas. 



rudis, Sollas. 

 Pachymatisma, Bow. 



Normani, Sollas. 



Geodia, Lamarck. 



288 Barretti, Bow. 

 Cydonium, Fleming. 



289 Normani, Sollas. 

 Synops, Vosmaer. 



290 MacAndrewii, Bow. 

 Isops, Sollas. 



291 phlegraei, Sollas. 

 Tethya, Lamarck. 



(49) lyncurium, Linne. 



Polymastia, Bowerbank. 

 (43) mamillaris, Mull. 



Trichostemma, M. Sars. 



292 hemisphaericum, M. Sars. 

 Tentorium, Vosmaer. 



(283) semisuburites, O. Schmidt. 



Quasillina, Norman. 

 (41) brevis, Bow. 



Alectona, Carter. 



293 Milleri, Carter. 

 Tragosia, Gray. 



(195) infundibuliformis, Linn. 

 (207) Barleei, Bow. 



Phakellia, Bowerbank. 

 (64) ventilabrum, Linn. 



Axinella, O. Schmidt. 

 (61) rugosa, Bow. 



Forcepina, Vosmaer. 

 (144) forceps, Bow. 



Hamacantha, Gray. 

 (149) falcula, Bow. 



Melananchora, Carter. 



294 elliptica, Carter. 

 Esperella, Vosmaer. 



(222) lingua, Bow. 



Desmacidon, Bowerbank. 



295 crux, O. Sch. 

 Rhaphidotheca, S. Kent. 



296 Marshall-Hallii, Kent. 

 Cladorhiza, M. Sars. 



297 abyssicola, M. Sars. 



298 pennatula, O. Sch. 

 Hymeraphia, Bowerbank. 



(74) vermiculata, Bow. 



Dysidea, Johnston. 

 (248) fragilis, Mont. 



