. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. abed FIGURE 1, a, b, c, d. Successive stages of swimming movements of Lcptnsyiniptti inlnicrcus. The effective stroke, directed toward the base of the U, occurs between a and b, and between c and d. During the period between b and c, there has occurred a rotation of the entire body, on the axis of the U, through 180 degrees. On the following evening (August 15) nine more leptosynaptids were observed swimming in Eel Pond between 9:25 and 10:00 , and were collected. At 10:00 , on entering the darkened laboratory, I obs
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. abed FIGURE 1, a, b, c, d. Successive stages of swimming movements of Lcptnsyiniptti inlnicrcus. The effective stroke, directed toward the base of the U, occurs between a and b, and between c and d. During the period between b and c, there has occurred a rotation of the entire body, on the axis of the U, through 180 degrees. On the following evening (August 15) nine more leptosynaptids were observed swimming in Eel Pond between 9:25 and 10:00 , and were collected. At 10:00 , on entering the darkened laboratory, I observed that four of the leptosynaptids collected the previous evening (and left in a bowl of standing sea water on the sea water table since that time) were in the extended condition and undergoing rapid swimming movements. These animals had remained in the contracted state at the bottom of the dish during the day (see Fig. 2). Similar observations were made for these and other animals on subsequent evenings. Swimming is undoubtedly a. 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
Size: 1919px × 1302px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
