. Studies on marine ostracods : pt. 1, Cypridinids, halocyprids and polycopids. border of the shell on or near the list there is a somewhat varying numberof bristles, most of them of the same type as the rostral bristles, a few short and weak; posteriorlythese bristles become more and jnore sparse and at the same time shorter and weaker, but medialbristles may be observed along the whole ventral edge of the shell; the number of these bristlesis, as already stated, somewhat varying; on tlie average, however, there is the same numberalong the whole ventral edge of the shell as on the rostrum. Th
. Studies on marine ostracods : pt. 1, Cypridinids, halocyprids and polycopids. border of the shell on or near the list there is a somewhat varying numberof bristles, most of them of the same type as the rostral bristles, a few short and weak; posteriorlythese bristles become more and jnore sparse and at the same time shorter and weaker, but medialbristles may be observed along the whole ventral edge of the shell; the number of these bristlesis, as already stated, somewhat varying; on tlie average, however, there is the same numberalong the whole ventral edge of the shell as on the rostrum. The joined part of the lamellaealong the edge of the shell is very narrow, which is probably connected with the balloon-likeswelling of tlie shell. The selvage is moderately broad, about the same width along the wholeedge of the shell, with fine cross-striation, and finely .serrated at the edge (fig. 5). First antenna: — This is rather elongated; the anterior side of the second tothe eighth joint measured, for instance, 4 mm. on a specimen with a length of shell of 14,5 mm.;. Fig. XXVI. — Gigantocypris Mulleri n. sp. — 1. Shell, seen from the side, 0= ^.5 X; * = the posterior Shell, seen from below, ?; 3,5 X. 3- Shell, seen from llie side, (J; 4,3 X; * = the posterior aperture, i. Posterioraperture of the shell, seen from outside, $; 27 X. 5. Afargin of the shell, veiitrally lo the wstral ineisur, seen fioinwithin, ?: 260 X. 6. Proximal part of the b-bristle of the first antenna, ^; I33X. Endopodite and the distall)art of the protopodite of the second antenna, ?; 30 X. 8. Bristles of the second endopoilile joint of the sfecpndantenna, (J; 133 X. 9. Distal part of the endopodite of the right mandible, seen from inside, ?; 88 X. {Figs. I. 2 and .>from a specimen from station 70, I), Antarctic Exp. 1901—03; figs. i,7 and 9 from a specimen from station82 of S/S ,,M i c li a e 1 S a r s; figs. 3, 6 and 8 from a specimen from station 0 of Af/S ..A r m a ii i r II
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectostraco, bookyear1920