. Studies on marine ostracods : pt. 1, Cypridinids, halocyprids and polycopids. ntral margins of the shell (ventrally of the incisur and along the anterior and middlepart of the ventral margin of the shell the selvage is so broad that when the shell is pressedbeneath the coverglass, it extends somewhat beyond the margin of the shell), it becomes moreand more narrow posteriorly until it ceases altogether at about the boundary between the ventraland posterior margins of the shell or somewhat more dorsally, sometimes it continues up alongthe posterior margin of the shell to about half the lieight
. Studies on marine ostracods : pt. 1, Cypridinids, halocyprids and polycopids. ntral margins of the shell (ventrally of the incisur and along the anterior and middlepart of the ventral margin of the shell the selvage is so broad that when the shell is pressedbeneath the coverglass, it extends somewhat beyond the margin of the shell), it becomes moreand more narrow posteriorly until it ceases altogether at about the boundary between the ventraland posterior margins of the shell or somewhat more dorsally, sometimes it continues up alongthe posterior margin of the shell to about half the lieight of the shell. On the anterior half ofthe shell — and on the rostrum too — the selvage has a smooth edge; from a point at or .somewhatbehind the middle of the shell it is finely and fairly uniformly serrated (see fig. 6). The selvageis finely cross-striated along the greater part of its length. Along the free margin of the shell,about half way between the selvage and the margin of the shell, there are the openings of a large Zoolog. bidrii^, Upps:il;i. ;I I. *. side,seen834antem CXII. — /t,iloc,/pns hrnuastns (J. D. Iiana). -- I. Shell seen Iron. Ihr ^i,le. o; ii X. 2. Shell seen from theS (var •): 72 X. 3. Left valve seen from the side. ?; il X. i. Shell seen from below, $; 3fi X., o. hhell d O; 3i X 6 Maru-in of the left valve just in front of the imsymmetrical gland seen from inside, ?; . Rod-shaped organ and the upper lip seen from the side, ?; 9. X. 8. Rod-shaped orsan and the right firstuna seen from the side, ?; 260 X. (Figs. 3—5 are drawn from speeiinens from station 8 b; ligs. J, h, 7 Irom sjieei-froni station 12 b. fig. 8 from a speeimen from station 53 and fig. 2 from a specimen from station 116.) from belli nX. Studifis on marine Oslracods 537 number of solitary glands, most of which are arranged in a rather distinct row (cf. fig. 6) anda number situated irregularly; in the specimens investigated by me from 105 to 143 of theseglands were found o
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectostraco, bookyear1920
