. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. Fii.'. 0. aliiistiviilii. SpliiiiiiiT. is .somewhat conical, wider in the ])roximal than in the distal part. The .scapus is invested with a wrinkled, rathi^r thick but deciduous cuticle "interwowen with line and clay (). When the cuticle is removed, the scapiis is very rugose, giving it an appearence as if it were provided with larger. ''if:. 10. Kiidiindrtis iiliiissiciilii. Sectiun cif thifc perlect mesenteries iu tiie iipiK-r part ef the IkkI
. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. Fii.'. 0. aliiistiviilii. SpliiiiiiiT. is .somewhat conical, wider in the ])roximal than in the distal part. The .scapus is invested with a wrinkled, rathi^r thick but deciduous cuticle "interwowen with line and clay (). When the cuticle is removed, the scapiis is very rugose, giving it an appearence as if it were provided with larger. ''if:. 10. Kiidiindrtis iiliiissiciilii. Sectiun cif thifc perlect mesenteries iu tiie iipiK-r part ef the IkkIv. In the s]ieciinen from Hiiberg the tenaculi. forming irregular elevations, were present (tig. 3 PI. 4), fragments of such occurred also ill the worst preserxcd specimens. Cinclides are also present here, thev .are, however, not situated on the tubercles, as sen and KoRKX state, but situated below the sphincter and seem to be at least 2 in certain compartments. In a sectioned piece with 3 pairs of niesenf<'ries of a rather well preserved specimen I 2 in each eiidoeoel of the outer pairs but no cinclis in the endocoel of the middle pair. The cinclides seem to be of the .same structure as in Siuidrlivijcloti nitjosns (]Kivv this species) but are very narrow in their middle parts, so that they can be easily over-looked in sections. Manifestly tlu'y are here in reduction. so that it is not probable that the acontia could be ejected tlironi;h tlieni. The margin was. in the best preserved s]iecimens, creiudated. .\t the insertions of the nu'.seilteries tlie uppermost part <if the cobnnn. the scapulus, was longitudinally sulcated (i'l. Ill tig. 1). The tentacles are conical, in the contracted state rather thick, when extended i<insideralily longer, the inner tentacles about twice as lont; as the outer ones and sonu'times longituilinally and traius- versally furrowed. The nundier of tentacles is fewer than that of the mesenteries
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Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectarcticregions
