. Bulletin - United States National Museum. Science. Fig. 325.—Dynamene MooREi (After Moore). DYNAMENE MOOREI, new species. Dynamene perforata Moore (female), Bull. U. 8. Fish Commission, XX, Pt. 2, 1902, pp. 178-174, pi. X, fi<i. 10.—Richardson (female). Trans. Conn. Acad. Sci., XI, 1902, pp. 291-292. Localities.—Culehia, Porto Kico; Bermudas. Found on niiuigrovo I'oots. This species is wliat Dr. Moore considered to be tiie female of Dynamene perforata. Upon examining the specimens of Dynamene perforata (females) I found one to be a male.« Body oblong-ovate, about twice as long as wide, 2


. Bulletin - United States National Museum. Science. Fig. 325.—Dynamene MooREi (After Moore). DYNAMENE MOOREI, new species. Dynamene perforata Moore (female), Bull. U. 8. Fish Commission, XX, Pt. 2, 1902, pp. 178-174, pi. X, fi<i. 10.—Richardson (female). Trans. Conn. Acad. Sci., XI, 1902, pp. 291-292. Localities.—Culehia, Porto Kico; Bermudas. Found on niiuigrovo I'oots. This species is wliat Dr. Moore considered to be tiie female of Dynamene perforata. Upon examining the specimens of Dynamene perforata (females) I found one to be a male.« Body oblong-ovate, about twice as long as wide, 2 mm.: ^ nun. Head about twice as wide as long, with the frontal margin rounded and pi'oduccd in a small median point. ?]yes large, composite, and situatcnl in tlu^ post-lateral angles of the head. First pair of antenna' have the first and third articles of the peduncle about equal in length; the second shorter than either. Theflagellum of eight articles extends to the posterior margin of the tirst thoracic segment. The second j)airof antenniv, withaflagellumof twelve arti- cles, extends to the posterior margin of the second thoracic segment. The first segment of the thorax is about one and a half times longer than any of the following segments, which are subequal. The seventh segment is produced backward in two small, rather obscure points, close to- gether, one on either side of the median line. The abdomen is composed of two segments. The second or terminal segment bears four small, rathei' obscure tul)ercles on the an- terior convex portion. This segment is some- what triangular in shape, with the apex notcluHl and the sides folded under, forming a kind of funnel-shaped extremity. The uropoda are lai'gc and broad, similar in shape and size, with the extremities rounded and the cxttM-ior mai-gins crenulate. They extend but little beyond the extremity of the abdomen. Both sexes of this species are known, the males and females being sinnlar. This species is named for Dr.


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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience