. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. / Fig. 3. Scalpellum albatrossianum. " abdominal appendix and basal part of cirrus VI | â 40). b mandible, and i first maxilla 1 â 80). Scalpellum albatrossianum the rust rum disappears already at a capitulum height of ab. mm, whereas specimens with capitulum height of 6 mm yet show the rostra of comparatively the same size and position as those oi Scalpellum striolatum with a capitulum height of mm (see fig. 2. d). A comparison of the data of the Atlantic specimens and the si
. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. / Fig. 3. Scalpellum albatrossianum. " abdominal appendix and basal part of cirrus VI | â 40). b mandible, and i first maxilla 1 â 80). Scalpellum albatrossianum the rust rum disappears already at a capitulum height of ab. mm, whereas specimens with capitulum height of 6 mm yet show the rostra of comparatively the same size and position as those oi Scalpellum striolatum with a capitulum height of mm (see fig. 2. d). A comparison of the data of the Atlantic specimens and the single specimen from the Indian Ocean described by Axxandale (11108, 1913, and 1916) is of interest here. The excellent drawing from 1908 leaves no doubt about the identity of his specimen. The capitulum height is mm. it is a little smaller than 's tvpe ( mm) and agrees with the medium-sized specimens from "Ingulf" St. 10. The skeleton in all details agrees with the Atlantic Scalpellum albatroKsiauum. Axxandale (1913) states that the carinal umbo is subapical, whereas Pilsbry (1907) characterized it as apical. Anxaxdalk's characterisation, however, depends on the narrow brim around (and under) the ombonal part at the apical end of the carina, a brim which may be observed in many species with "apical umbo", but which is generally concealed under the margins of the terga. There are some small anatomical] differences between Annan- dale's description and the specimen from St. 10. According to Axxandale (1913) "the cirri .... closely resemble those of S. pacificum, but the anterior ramus of the first cirrus is relatively broader" (under Scalpellum pacificum Axxandale (1. c.) says "The anterior ramus of the first cirrus flattened and expanded, especially in the 1th. 5th. and 6th segments ; posterior ramus slender, slightly longer than anterior ramus"). Cirrus I thus seems to be more flattened (with protruding median segmen
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Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectarcticregions
