The Annals and magazine of natural history . ong calcareous spicule, or some exceedinglyvariously formed perforated calcareous plates with crowns; and inthe deeper layer of the skin a great quantity of colourless more orless rounded bodies consisting of a conglomerate of calcareousprisms. Skin greenish ; buccal disk and caudal point white. Hab. Station 290, 72° 27 K lat., 20° 51 E. long.,in 191 fathoms,temperature 3°-5 C, sandy clay. The genus TrocTiostoma, Dan. & Kor., includes T. TTiomsonii,D. & K., with no cloaca : and with cloaca T. boreale, M. Sars, , Marenz., and T. (Molp.) ool


The Annals and magazine of natural history . ong calcareous spicule, or some exceedinglyvariously formed perforated calcareous plates with crowns; and inthe deeper layer of the skin a great quantity of colourless more orless rounded bodies consisting of a conglomerate of calcareousprisms. Skin greenish ; buccal disk and caudal point white. Hab. Station 290, 72° 27 K lat., 20° 51 E. long.,in 191 fathoms,temperature 3°-5 C, sandy clay. The genus TrocTiostoma, Dan. & Kor., includes T. TTiomsonii,D. & K., with no cloaca : and with cloaca T. boreale, M. Sars, , Marenz., and T. (Molp.) ooliticum, Pourt.—tyt Magazinfur Naturv. Bd. xxv. pp. 83-140, pis. Ann &? Mag. Not. ffijsb. S 5. Vol. 7. PL VI


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