. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 166 ESTHER F. BYRNES. Herrick recognizes, also combines a one-jointed fifth foot with two-jointed rami. It is known as C. affinis and is like C. pliale- ratits, " which it closely ; A fourth and a last type to which I shall refer, is seen in a not infrequently occurring form which combines twelve-jointed antenna: with three-jointed rami in the swimming feet and a two-jointed fifth foot (Fig. 5). Herrick recognizes three species as having these characteris- tics, namely : C. capillatus and C. crassicaudis,
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 166 ESTHER F. BYRNES. Herrick recognizes, also combines a one-jointed fifth foot with two-jointed rami. It is known as C. affinis and is like C. pliale- ratits, " which it closely ; A fourth and a last type to which I shall refer, is seen in a not infrequently occurring form which combines twelve-jointed antenna: with three-jointed rami in the swimming feet and a two-jointed fifth foot (Fig. 5). Herrick recognizes three species as having these characteris- tics, namely : C. capillatus and C. crassicaudis, both European. FIG. 5- Shows a twelve-jointed antenna which is relatively very long as compared with the cephalothorax, notwithstanding the relatively small number of antennal seg- ments present. forms, and C. varicans, an American form. The two former are described as Scandinavian forms only. Of the third species C. varicans, Herrick says that it is " the American species most nearly resembling the European form with twelve antennal seg- ments and a two-jointed fifth ; " Unhappily," Herrick also remarks, " this species was taken but ; On Plate Herrick figures the first foot of C. varicans, which he pictures as having two-jointed rami in the swimming feet. Herrick explains that the last joint is homologous to two fused segments, and that the separation might take place " at the next ; The form I have studied shows the armature when the rami have reached 1 " Copepoda, Cladocera and Ostracoda of ;. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
