. Bulletin - United States National Museum. Science. Fin. 435.—Synidotea PicTA (After Benedict), x 3. a, Typical form. ?;, Variety. line, just below the frontal notch is a large and prominent tiil^ercle, narrow and elongate. On either side in line with this tubercle is a small rounded tubercle. These three tubercles are placed in a trans- verse line between the eyes. A little in front of these tubercles, and halfway between the median notch and the lateral margins are two tubercles, one on either side in front of the eye. Back of the three tu])ercles in tranverse series are two rugosities, one
. Bulletin - United States National Museum. Science. Fin. 435.—Synidotea PicTA (After Benedict), x 3. a, Typical form. ?;, Variety. line, just below the frontal notch is a large and prominent tiil^ercle, narrow and elongate. On either side in line with this tubercle is a small rounded tubercle. These three tubercles are placed in a trans- verse line between the eyes. A little in front of these tubercles, and halfway between the median notch and the lateral margins are two tubercles, one on either side in front of the eye. Back of the three tu])ercles in tranverse series are two rugosities, one on either side of the median line, and posterior to these is a low ridge pro- duced in a median tu])ercle. The eyes are large and round, compound in structure, placed about the mid- dle of the head and a short distance from the lateral margin. The first antenna^ have the basal article short and not expanded; the second and third articles are about equal in length; the fourth is a little longer than the third. The first antenna^ extend to the end of the third peduncular article of the second pair of antenme. The basal article of the second antennae is inconspicu- ous from a dorsal view; the second, third, fourth, and fifth are each successively a little longer than the preceding article. The flagellum consists of ten articles. When retracted the second antennae extend to the middle of the third thoracic segment. The maxillipeds have a palp of three articles. The first four segments of the thorax arc^ longer than the last three. In all the epimera are firmly united with the scgnuMits. Along the. 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 United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
