. The Arthrostraca of Connecticut. Malacostraca. 242 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 1905. Cylisticus convcxus, Richardson, Bull. U. S. Nat. Mus., No. 54, p. 609. 1905. Cylisticus convcxus, Paulmier, Bull. N. Y. State Mus., No. 91, p. Fig. 78. Cylisticus convexus. Body oblong-ovate, a little more than twice as long as wide, dorsal surface strongly convex; able to contract into a ball like an armadillo. Head twice as broad as long with the antero-lateral angles produced in large and rounded lobes; median lobe small and triangular and with acute apex. Eyes small and compoun


. The Arthrostraca of Connecticut. Malacostraca. 242 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 1905. Cylisticus convcxus, Richardson, Bull. U. S. Nat. Mus., No. 54, p. 609. 1905. Cylisticus convcxus, Paulmier, Bull. N. Y. State Mus., No. 91, p. Fig. 78. Cylisticus convexus. Body oblong-ovate, a little more than twice as long as wide, dorsal surface strongly convex; able to contract into a ball like an armadillo. Head twice as broad as long with the antero-lateral angles produced in large and rounded lobes; median lobe small and triangular and with acute apex. Eyes small and compound, situated at the bases of the antero-lateral lobes. First pair of antennae inconspicuous, very small. Second pair long and slender with flagellum composed of two sub- equal joints; peduncular joints increasing in length distally. Thoracic segments subequal in length; large coxal plates not distinct from their segments; those of first segment expanded to embrace the head, extending to base of antero-lateral lobes as well as posteriorly in acute processes; lateral margins straight. Legs moderate, increasing in size posteriorly. Abdomen with six distinct segments not abruptly contracted; first two with lateral margins covered by last thoracic segment; third, fourth, and fifth with lateral lamellae prominent and curved posteriorly to continue the even outline of the body. Telson tri- angular, conically produced. Uropods considerably produced beyond general outline of body, with peduncle extending a little beyond the middle of apical process of telson; inner ramus origi-. 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 Kunkel, Beverly Waugh, 1881-. Hartford, Printed for the State Geological and Natural History Society


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmalacostraca, bookyea