. Studies on marine ostracods : pt. 1, Cypridinids, halocyprids and polycopids. ube-bristle on the first endite, the remaining one being of the sametype and about the same length as the long bristle on the first endite. The e p i p o d i a 1plate has only four bristles in the middle group. Endopodite: This has constantlyeight bristles. Two of these, one situated proximally on the anterior side of the process closeto the protopodite and one situated ventrally near the exopodite, are of the same type and aboutthe same length as the long bristles on the endites of the protopodite. The others have


. Studies on marine ostracods : pt. 1, Cypridinids, halocyprids and polycopids. ube-bristle on the first endite, the remaining one being of the sametype and about the same length as the long bristle on the first endite. The e p i p o d i a 1plate has only four bristles in the middle group. Endopodite: This has constantlyeight bristles. Two of these, one situated proximally on the anterior side of the process closeto the protopodite and one situated ventrally near the exopodite, are of the same type and aboutthe same length as the long bristles on the endites of the protopodite. The others have short,fine hairs, almost bare, and are of different lengths; one of these, situated disto-ventrally on theprocess, is somewhat shorter than the two former, and rather powerful, the one situated closeto this is of the same type but only about half as long, one is about as long as the longer of thetwo powerful ones, but is weak, the others are more or less short and often of the tube-bristletvpe. Exopodite: First joint: This has usually five, in exceptional cases four, short-. Fig. CLI — Euconchoecia Chierchiae G. W. Muller. — 27. Left fifth limb (except the epipodial appendage) seenliom inside. ^; 337 X. 28. Right sixth limb (except the epipodial appendage) seen from outside, cj: 292 Kighl sixth limb (except the epipodial appendage) .seen from inside, ?; 450 X. 30. Fiirca, <?; 22,) X. 31 Penisseen trom inside: 210 x. 32. Distal jiart of the penis, seen from outside: .555 X. (From specimens from Cruz Bay, 81. Johns.) studies on marine Oslracods 749 haired bristles ventrally. Most of these are usually of the tube-bristle type and are about aslong as the proximal height of this joint; three (two) of these are situated about half-way alongthe joint, the two others are placed distally. Laterally at about the middle of this joint thereare two bristles, of about the same length as the former ones, but With long, soft hairs, and shorthairs distally; they are pointed. The b


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Keywords: ., bookcentury1900, bookdecade1920, booksubjectostraco, bookyear1920