Lithostrobus (?) botryocyrtis, Haeckel:
I - viewed from right (station 37); II - viewed from right, from sediments of North Atlantic; III - viewed from left (station 33); IV - viewed from right (station 5117 of the "Vityaz"). Lithostrobus (?) Iithobotrys Haeckel:
V - not adult shell, viewed from left (station 5117 of the "Vityaz"); VI - posterior view, somewhat from left (station 293).