. Bulletin - United States National Museum. Science. COPEPODS OF THE WOODS HOLE REGION 97 fifth legs in both sexes also furnish additional characters. Both Forbes and Rathbun gave " a fresh-water pond, Woods Hole," as a habitat of this species, but the present author has not been able to find it in Woods Hole. DIAPTOMUS SPATULOCRENATUS Pearse FiGXJKE 65 Diaptomus spatulocrenatus Pearse, Amer. Nat, vol. 40, p. 246, figs. 6-9, 1906.—Maesh, Trans, Wisconsin Acad. Sci., vol. 15, p. 456, 1907. Occurrence.—Both sexes were found in great abundance in a small lily pond south of Ashumet Pond,
. Bulletin - United States National Museum. Science. COPEPODS OF THE WOODS HOLE REGION 97 fifth legs in both sexes also furnish additional characters. Both Forbes and Rathbun gave " a fresh-water pond, Woods Hole," as a habitat of this species, but the present author has not been able to find it in Woods Hole. DIAPTOMUS SPATULOCRENATUS Pearse FiGXJKE 65 Diaptomus spatulocrenatus Pearse, Amer. Nat, vol. 40, p. 246, figs. 6-9, 1906.—Maesh, Trans, Wisconsin Acad. Sci., vol. 15, p. 456, 1907. Occurrence.—Both sexes were found in great abundance in a small lily pond south of Ashumet Pond, Falmouth; a small pond near the outlet of John Pond, Mashpee; Oyster Pond, Falmouth; John Pond,. FiGDKE 65.—Diaptonma spatulocrenatus: a, Female, dorsal; &, spermatophore; c, female, fifth leg; d, male, dorsal, showing twist to the right; e, male, fifth legs Mashpee; Flax Pond, Bourne; Red Brook Pond, Bourne; Mares Pond, Falmouth. Distribution.—Reported hitherto only from Wigwam Pond on Nantucket Island, from which Pearse obtained his tjrpe specimens, and Lake Sebago, Me. (Marsh). Color.—Transparent with a bluish tinge, and with reddish-brown irregular spots around the bases of the swimming legs; sometimes these spots cover nearly the entire ventral surface; distal half of first antennae in the female, and the enlarged portion of the grasping antenna in the male bright orange-red; ovaries, oviducts, and eggs reddish brown; eye dark red. Female.— more or less separated from the first segment; fifth segment produced at its posterior corners and armed with two short. 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. of Docs.
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