. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. spc ipg si Pig. ^. Sarsia princeps. Longitudinal sec- tion of upper part of manubrium of a male individual, ap. can. apical canal; ap. j. apical jelly; ect. ectodermal epithe- lium; end. cndodcrmal epithelium; end. I. endodcrmal lamella; pro.};, proximal part of manubrium free of gonads; 5. /. sup- porting lamella of manubrium; sper- matocytes; spermatogonies; sub. cp. subumbrclla epithelium; sub. j. subuni- brella jelly. — Specimen from Greenland, "Tjalfe" stat
. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. spc ipg si Pig. ^. Sarsia princeps. Longitudinal sec- tion of upper part of manubrium of a male individual, ap. can. apical canal; ap. j. apical jelly; ect. ectodermal epithe- lium; end. cndodcrmal epithelium; end. I. endodcrmal lamella; pro.};, proximal part of manubrium free of gonads; 5. /. sup- porting lamella of manubrium; sper- matocytes; spermatogonies; sub. cp. subumbrclla epithelium; sub. j. subuni- brella jelly. — Specimen from Greenland, "Tjalfe" stat. 124. adaxial side, narrowing towards tlie ahaxial side, in tlie middle of which it is interrupted. A well-developed, purely ectodermal spur grasps round the margin of the exumbrella; the ocellus is placed immediately below the spur. In contradistinction to Sarsia tubulosa, the radial canal issues from the adaxial side of the bulb, close to the sulnimbrella, and the endoderm of the bull:) is not vaulting into the umbrella, neither behind nor in front of the radial canal (comp. Sarsia tubu- losa). The shape and the inner structure of the bulb may be seen in the figures. Colour. In a specimen, found during a cruise of the "Dana" to the west coast of Greenland in 1925, the manubrium, the radial canals, the circular vessel, and. Fig. 5. Sarsia princeps. Longi- tudinal section of the tenta- cular bulb. — ect. ectoderm; enil. endoderm; ex. exum- brella; n. p. nematocyst pad ; n. r. nerve-ring; r. c. radial canal; s. /. supporting lamella of tentacle; sp, apical spur; sub. subumbrella; v. velum. the ectoderm of the tentacular l)ulbs are rosy-red, the apical chamber and the endoderm of the tentacular bulbs intensely carmine, ocelli dark brown. The'specimen was examined 2'/2 months after being found and preserved in formalin. Material (see Chart I). Greenland: i) — Greenland, without further details. Royal Museum and H. P. C. Holler 1844; Olrik 1865. 2) — Davis Strait
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Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectarcticregions
