. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. -BI'P.] CRUSTACEA. 547. (lie inner margins for flmbrin. Type li. siliqua. rHpsella. Hall, 1888, Pal. N. Y., vol. 7, p. 181, Ham. Gr. giiKiua, Beucher, 1884, Hep. Pa. Geo. Sur. PPP, p. 13, Chemung Gr. Evil'olamut rotundahu, Kominger, 8yn. for fUthyuriscua howelli. spinom, Rominger, Hyn. for Ohnioidea HpinMBus. Es( itiNUKUH, Kmmrich, 1845, NeiieH Jahrb. f. Mineral, p. 42. [Etv. en, prefix; krino, parted; oura
. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. -BI'P.] CRUSTACEA. 547. (lie inner margins for flmbrin. Type li. siliqua. rHpsella. Hall, 1888, Pal. N. Y., vol. 7, p. 181, Ham. Gr. giiKiua, Beucher, 1884, Hep. Pa. Geo. Sur. PPP, p. 13, Chemung Gr. Evil'olamut rotundahu, Kominger, 8yn. for fUthyuriscua howelli. spinom, Rominger, Hyn. for Ohnioidea HpinMBus. Es( itiNUKUH, Kmmrich, 1845, NeiieH Jahrb. f. Mineral, p. 42. [Etv. en, prefix; krino, parted; oura, tail.] Cephalic shield Hemielliptical, tuberciilated, lajteral nii- Klea produced into spint'H ; glabella pyri- form, three furrows at each side toward the base; clieekH flattened, triangular; eyes in the middle of the cheeks, ele- vated on foot-stalks; facial suture behind the eye cuts the outer margin in front of the angles; thorax with eleven 8t>g- ment8; pygidium triangular, lateral lobeH with about eight segments, de- flected, sometimes pointed ; iixis nar- row, convex, with numerous segment;. 1 lines. Type K. punctatus. deltoidi'us, Shumard, 1855, Geo. Sur. Mo., p. 198, Up^Sil. egani, S. A. MilU>r, 1880, Jour. Cin. Soc. Nat. Hist., vol. 2, p. 254, Niagara Cir. elegantulus, Billings, 1866, Catal. Sil. Foss. Antic, p. 62, Anti- costi Gr. excedrenm, S a ff o r d, Not defined, leevis, Angelin, 1852, (Cryptonymus Ite- vis,) Palieontologia Hcandinavica, p. 4, Up. Sil. miruB, Billings, 1865, Pal. Fosfi., vol. 1, p. 292, Quebec Gr. or Up. Taconic. multisegmentatus, Portlock, 1843, (Am- phion multisegmentatus,) Rep. Geo. of Londonderry, etc., Anticosti Gr. nereus. Hall, 1867,20th -«t-. Uep. N. Y. St. Mus. .^K-'.^ Nat. Hist., p. 425, Niagara Gr. ornatus. Hall & Whit- field, 1875, Ohio Pal., Fig- 1005 -Encrlnu- vol. 2, p. 154, Niag- 'Zi\^ Cephalic ara Gr. phlyctai nodes, Green, 1837, (Calymene phlyctainodes,) Am. Jour. Sci. and Arts, vol. 32, p. 167, and Pal. ,vo
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