. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. AfTINIARIA 11 Godthaab expedition the cinclides were distinct and visible under a leus. They were situated at the limit lietween scapus and sca- pulus and placed in an annulus round the body. To judge from a section of a piece containini? three pairs of mesenteries, it seems to be a cinclis from each endocoel in the ujiper part of the body. On the other hand I have not found any cinclides in a sectioned piece with 5 mesenteries of the linibus. The margin is not distinct. The number of the
. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. AfTINIARIA 11 Godthaab expedition the cinclides were distinct and visible under a leus. They were situated at the limit lietween scapus and sca- pulus and placed in an annulus round the body. To judge from a section of a piece containini? three pairs of mesenteries, it seems to be a cinclis from each endocoel in the ujiper part of the body. On the other hand I have not found any cinclides in a sectioned piece with 5 mesenteries of the linibus. The margin is not distinct. The number of the tentacles is always fewer than that of the mesenteries. 7 specimens examined had 27, 28, 34, 36, 38, 43, and ii tentacles. stated, that Phellia bathybia had 18 + 18 and Kadosuctis roaea 36 + 36 tentacles. As to the latter I have not been able to count all tentacles of the tyjje-specimeu,. Fig. 7. Kadosactis rosea. Transverse sectiDU of tentacle. but judging from the remaining tentacles, there were certainly considerably fewer tentacles than .states. ALso Daxi- elssen's statement of the number of mesenteries in Kadosactis is certainly incorrect. Also the tentacle cycles are more than 2 and probably 3. Moreover, it is difficult to decide, whether the ten- tacles are .strictly hexamerously arranged, probably not, as small displacements seem to have taken jilace in connection with the development of the strong basal swellings on the outer tentacles and the fact that not all mesenteries reach the margin. At the outside of the base the outer tentacles are jirovided with strong mesogloeal thickenings in the form of bridges connected with the niesogloea of the column. In .sections of the inner tentacles the niesogloea was .somewhat thickened on the corresponding places but these thickenings were visil)le only in sections. The distal i)art of the outermost tentacles was sometimes filamentously drawn out and according to ^ in the living state almost as
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Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectarcticregions
