. Bulletin - United States National Museum. Science. 246 BULLETIN 15 8, UNITED STATES NATIONAL MUSEUM from the sand of Buzzards Bay bathing beach at Woods Hole, July, 1927; washed also from the sand of Nobska bathing beach, and from sand on the shore of Katama Bay, Marthas Vineyard. Distribution.—Scottish tide pools (T. Scott) ; Kiel Bay (Gies- brecht) ; coast of Norway (Sars); Adriatic (Pesta). Color.—Body transparent with a whitish tinge, becoming snow white and opaque in formalin; eggs gray or grayish white; eye not visible. Female.—Cephalic segment short and broadly rounded anteriorly; ana
. Bulletin - United States National Museum. Science. 246 BULLETIN 15 8, UNITED STATES NATIONAL MUSEUM from the sand of Buzzards Bay bathing beach at Woods Hole, July, 1927; washed also from the sand of Nobska bathing beach, and from sand on the shore of Katama Bay, Marthas Vineyard. Distribution.—Scottish tide pools (T. Scott) ; Kiel Bay (Gies- brecht) ; coast of Norway (Sars); Adriatic (Pesta). Color.—Body transparent with a whitish tinge, becoming snow white and opaque in formalin; eggs gray or grayish white; eye not visible. Female.—Cephalic segment short and broadly rounded anteriorly; anal segment not more than half the length of the penultimate seg- ment; caudal rami wider than long, somewhat obliquely truncated at the tips. Two basal segments of first an- tennae enlarged, but together only half as long as the rest of the appendage; basal segment of second antenna dis- tinctly divided, the exopod attached at the joint; distal segment of first endopod three times as long as second segment and half as long as the basal segment; middle segment of first exo- pod without an inner seta; distal seg- ment of fifth legs strongly contracted at its base, broadly rounded at its tip, with five setae, the second inner one filiform and greatly elongated; basal expansion reaching beyond the center of the distal segment, with four setae, the two outer ones sparsely plumose, the two inner ones with tufts of cilia at their tips, the second outer one the longest. Total length, mm. Male.—F'w^t antennae 9-segmented, the fourth, fifth, and sixth segments moderately swollen and more or less fused, aesthetask reaching little beyond the tip of the end segment. Endopod of first legs much longer than exopod, its two distal segments about equal in length and together about half the length of the basal segment; middle segment of first exopod with an inner seta. Fifth legs much reduced in size, the distal segment oval, one-half longer than wide, with three setae, of which
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
