Marine isopods collected in the Philippines by the fisheries steamer Albatross in 1907-08 . andoccupied by the bilobate epimeron. The last three segments haveonly the antero-lateral angles produced, the post-lateral angles beingrounded and occupied by the single-lobed epimeron. a Jahrb. Hamburgischen Wiss. Anst., vol. 3, 1886, pp. 125-134, pi. 7, figs. Crust. Southern Cross Coll., 1902, pp. 251-253, pi. Pearl Oyster Fisheries, pt. 4, p. 55. Proceedings U. S. National Museum, Vol. 37—No. 1720. 649 650 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. 37. The abdomen is composed of
Marine isopods collected in the Philippines by the fisheries steamer Albatross in 1907-08 . andoccupied by the bilobate epimeron. The last three segments haveonly the antero-lateral angles produced, the post-lateral angles beingrounded and occupied by the single-lobed epimeron. a Jahrb. Hamburgischen Wiss. Anst., vol. 3, 1886, pp. 125-134, pi. 7, figs. Crust. Southern Cross Coll., 1902, pp. 251-253, pi. Pearl Oyster Fisheries, pt. 4, p. 55. Proceedings U. S. National Museum, Vol. 37—No. 1720. 649 650 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. 37. The abdomen is composed of a single segment, the posterior marginof which is trilobate, the median lobe being the largest. The uropodaare missing in both specimens. The seven pairs of legs are similar inthe female and terminate in bi-unguiculate dactyli. In the male,however, the first pair of legs is prehensile, with propodus and dac-tylus dilated, the propodus fringed with long hairs. Only two specimens, a male and a female, were collected by theU. S. Bureau of Fisheries steamer Albatross at station 2770, off the. FlG. 1.—NOTASELLUS TRILOBATUS. d, FEMALE, X 19J; 6, FIRST LEG OF MALE, X 19gJ C, FIRSTAND SECOND PLEOPODS OF MALE, X 30§. east coast of Patagonia, lat. 48° 37 S., long. 65° 46 W., at a depthof 58 fathoms in gray sand with black specks. This species is close to the two first-mentioned species of the genus,but differs in the shape of the abdomen, of the first pair of legs of themale and of the distal extremity of the outer branch of the secondpleopoda of the male, in the more rounded antero-lateral angles ofthe head, and the less protruding eyes. Type.— Cat. No. 40099,
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherwashi, bookyear1910
