Notes on the Family AsellidaeP.A. Norstedt & söner, 1886 - 54 pagine |
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2:me éd angulations Animal par Cuvier antennæ consists Antennæ primi paris Antennæ secundi paris aquaticus articuli Asellus Asellus aquaticus bases pedum BATE and WESTWOOD bi-unguiculati body BOVALLIUS cés ceteri subæquales cheliform Christiania Colour Commissioner of Fish covering the bases Crusta Crustacea Dactyli pedunculati Diagn elongate eyed Crustacea Fauna Fish and Fisheries five-jointed flagello multi-articulato instructæ flagellum flagellum is multi-articulate G. O. SARS HARGER head Histoire naturelle Iæra Ianthe inner Isopoda KROEYER laciniata laciniated Latera segmentorum pereii lateral margins LATREILLE LEACH longer than half Mancasellus mandibles metacarpus MILNE-EDWARDS naturelle des Crustacés ocelli Oculi Oniscoda outer ramus pair of antennæ pair of pereiopoda palpum tri-articulatum gerentes Pedes pereii primi peduncles pereii primi paris pereional segments pleon ramis binis Règne Animal rostrum S. I. SMITH second pair Sessile-eyed Crustacea shorter than half SPENCE BATE Stenetrium subequal tegentia tennæ three-jointed palp Tome 3:me tri-unguiculate U. S. Commissioner uropoda uropoda consist
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Pagina 39 - The Crustacea of the fresh waters of the United States». Report of the US Commissioner of Fish and Fisheries. Part 2, p. 661. It differs from the species in: the flagellum of the first pair of antennae containing one or two joints more; the lateral portions of the head and segments of the body are expanded so that the outline of the animal is a broader oval. The sinus in the lateral margins of the head are narrow incisions, rounded at the bottom, but with the sides sometimes meeting. The metacarpus...
Pagina 13 - Fifth Annual Report of the Trustees of the Peabody Academy of Science for the year 1872.
Pagina 30 - Report of the marine Isopoda of NewEngland and adjacent waters». Report of the US Commissioner of Fish and Fisheries. Part 6, p. 316. pi. 1, fig. 4. 1Ш. > » » SI SMITH. »Review of the marine Crustacea of Labrador».
Pagina 35 - ... third, and fourth two, more or less equal, the fifth, sixth, and seventh one large and one very minute each. The pleon carries on its dorsal-side a single spine-like tubercle, and is produced backwards into two flattened, sharppointed angulations, between these the uropoda are attached. The peduncles of the uropoda are shorter than the angulations. The outer ramus is almost as long as the inner (37 : 39). Colour. Yellowish white. Length. 21,5 mm. Hab. Baffinsbay. (SM) The differences between...
Pagina 38 - American Journal of Science and Arts. Third series. Vol. 11, p. 304. The lateral margins of the head are deeply sinuated opposite the eyes. The eyes are small, prominent, they consist of many facets. The flagellum of the first pair of antennae is five-jointed. The second pair of antennae are half as long as the body. The pleon is large, only a little broader than long, sligtly rounded behind. The outer ramus of the uropoda is half as long as the inner; the inner one a little longer than the peduncle....
Pagina 35 - ... they are longer than the head. The eyes are oval. The long diameter of the eyes equals a sixth of the length of the head. The flagellum of the first pair of antenna; is 60-70 articulated.
Pagina 35 - The flagellum of the second pair of antenna? consists of almost 280 articuli. The first segment of the pereion is as long as the second; the seventh segment is the longest. All carry each two spine-like tubercles on the dorsal side. The lateral margins of the first segment carry one angulation on each side; the second, third, and fourth two, more or less equal; the fifth, sixth, and seventh, one large and one very minute each. The pleon carries on its dorsal-side a single spine-like tubercle, and...
Pagina 35 - The first pair of antennas are nearly as long as the breadth of the head (18 : 19). The flagellum of the second pair of antennae consists of almost 280 articuli. The first segment of the pereion is as long as the second ; the seventh segment is the longest. All carry each two spine-like tubercles on the dorsal side. The lateral margins of the first segment carry one augulation on each side, the second, third, and fourth two, more or less equal, the fifth, sixth, and seventh one large and one very...
Pagina 49 - The second pair of antennaj equal nearly two-thirds of the length of the animal. The pleon has a double excavation on the posterior margin, the median point not extending beyond the extremity of the sides. The uropoda are as long as the posterior margin of the pleon, terminating in two styliform rami, each of which is tipped with a few short hairs. Colour. ? Length. ? Hab. Esquimault harbour, Vancouver Island. Taken in a sponge, on a depth of 8 fathoms. 7. Itéra Novse-Zelandiœ. CHILTON. Syn. 1883....
Pagina 39 - ... so that the outline of the animal is a broader oval. The sinus in the lateral margins of the head are narrow incisions, rounded at the bottom, but with the sides sometimes meeting. The metacarpus of the first pair of pereiopoda is nearly as much enlarged, in the males, as in Aseüus cummunis, SAY, and is armed on the anterior margin with three acute teeth, of which the middle one is the largest. Hab, Detroit River, Michigan, North America. 2. Mancasellus braohyurue. 0. HAEGEB. Syn. 1876. Mancatellu»...