. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. Fig. 5. Scalpellum phrygianum. a type specimen, left side, b carina] latera and basal part of carina in dorsal view, c latus inframedium of right side ( latus rostrale, se scutum, latus superius, latus carinale) (a-cx2). - d mandible and e tirst maxilla (> 60). Tergum almost triangular with acute apex, sculptured with slight, though distinct lines of growth and a few stripes radiating from the apex downwards towards the basal margin. Umbo apical. The ventral and dorsal mar
. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. Fig. 5. Scalpellum phrygianum. a type specimen, left side, b carina] latera and basal part of carina in dorsal view, c latus inframedium of right side ( latus rostrale, se scutum, latus superius, latus carinale) (a-cx2). - d mandible and e tirst maxilla (> 60). Tergum almost triangular with acute apex, sculptured with slight, though distinct lines of growth and a few stripes radiating from the apex downwards towards the basal margin. Umbo apical. The ventral and dorsal margins of the tergum are almost quite straight, the dorsal with a slight indication of convexity: the basal margin is a little cv-shaped. The basi-carinal angle is rather acute. Scutum is sharply beaked apically, with terminal umbo, and externally ornamented with fine lines of growth. The basal margin towards the latus rostrale as well as the dorsal towards the latus superius are almost quite straight; the ventral margin is rather strongly and uniformly convex, whereas the upper part of the dorsal margin bordering the tergum is deeply concave so that the plate is beak-like tapering. Nevertheless, the scutal apex is not bent in over the tergum. Carina with apical umbo, in lateral view a little convex with lather prominent ridges of growth. A deep and broad longitudinal furrow runs from the apex to basis flanked by narrow and rather clear-cut flanges (tig. 5. b). Latus superius is triangular with its apical umbo wedged in between tergum and scutum and basal margin adjoining the margin of the carinal latus from the inframedian plate to the carino-basal corner of tergum. The plate is adorned with prominent and conspicuous growth ridges parallel to its basal margin: it has also a few. less conspicuous, radiating stripes from the apex to- wards the basal margin. Rostrum wanting. Latus rostrale very low, trapezoidal, with feeble linughou1 ,| with very < ;rowth parallel to
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Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectarcticregions
