. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. <? 5 6 FIGS, i and 2. Anopheles punctipennis, chromosomes of the oogonia. Mag, 'OO. FIGS. 3 and 4. Anopheles punctipinnis, chromosomes of the spermatogonia. me mag. FIG. 5. Culex pipiens, chromosomes of an oogonium. Same mag. FIG. 6. Culex pipiens, chromosomes of a spermatogonium. Same mag. pairs of chromosomes very similar to those found in other Diptera, and a third pair which is clearly made up of a longer and a shorter pair. Corresponding figures of spermatogonial plates are shown in Figs. 3 and 4. Here the composite


. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. <? 5 6 FIGS, i and 2. Anopheles punctipennis, chromosomes of the oogonia. Mag, 'OO. FIGS. 3 and 4. Anopheles punctipinnis, chromosomes of the spermatogonia. me mag. FIG. 5. Culex pipiens, chromosomes of an oogonium. Same mag. FIG. 6. Culex pipiens, chromosomes of a spermatogonium. Same mag. pairs of chromosomes very similar to those found in other Diptera, and a third pair which is clearly made up of a longer and a shorter pair. Corresponding figures of spermatogonial plates are shown in Figs. 3 and 4. Here the composite pair consists of a longer equal pair, as in the oogonia, united with a smaller unequal pair, the larger member of which is of the same relative size as the members of the corresponding small pair in the oogonial plates. All of the spermatogonial plates in this Anopheles material were of this type. In Culex, on the other hand, no such inequality or composite condition of one pair of chromosomes could be de- tected. Figs. 5(9) and 6 (d1) are new figures of the oogonial and spermatogonial chromosomes of Culex pipiens, and those of Culex tarsalis are of the same general 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, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory


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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology