. Bulletin - United States National Museum. Science. 274 BULLETIN 54, UNITED STATES NATIONAL MUSEUM. Color, l)rown. Specimens were found at Great Egg Harbor, New Jersey, by Dr. William Stimpson. Ti/pe.âC^t No. 4402, This species is very similar to the following one, and may prove to be the same. As the type and only specimen of Say's species is in such a bad state of preservation, I am unwilling as yet to identify this species with it. CASSIDISCA OVALIS (Say). Na-sa oralis Say, Jour. Acad. Nat. Sci. Phila., I, LS18, pp. 484-485.âRichard- son, American Naturalist, XXXIV, 1900, p. 224;
. Bulletin - United States National Museum. Science. 274 BULLETIN 54, UNITED STATES NATIONAL MUSEUM. Color, l)rown. Specimens were found at Great Egg Harbor, New Jersey, by Dr. William Stimpson. Ti/pe.âC^t No. 4402, This species is very similar to the following one, and may prove to be the same. As the type and only specimen of Say's species is in such a bad state of preservation, I am unwilling as yet to identify this species with it. CASSIDISCA OVALIS (Say). Na-sa oralis Say, Jour. Acad. Nat. Sci. Phila., I, LS18, pp. 484-485.âRichard- son, American Naturalist, XXXIV, 1900, p. 224; Proc. U. S.'Nat. Mas., XXIII, 1901, p. mi. LoeaJitij.âSoutli Carol ina. Depth.âFound on surface. "'"Body oval, depressed; ultimate segment of the tail obtuse, with three hardly raised, very obtuse lines at base; lateral ap]>endices dilated, three caudal segments. '*â Inhabits bays and inlets of the United States; connnon. Cabinet of the Academy. "'Body perfectly oval, segments subequal, fourth, fifth, and sixth largest, first segment of the tail equal to the preceding one, simple; terminal segment tri- angular, obtusely rounded at tip, rectilinear each side, half as long as the body, with three longitudinal, abbreviated, raised, very obtuse lines at base, of which the middle one is most Fig. âCASSIDISCA ovalis. conspicuous; lateral processes dilated, de- ABDOMEN WITH uEupoDA. pj-esscd, rcctilincar within and rounded on the external margin, so as to form with the terminal segment a perfectly semiorbicular termination of the body, without interval; head somewhat unecpial; eyes conspicuous, hemi- spherical; antenna' etpial; labrum triangular, advanced, very conspic- uous, terminating the head before and forming, with the base of the superior antenna* behind it, a rounded termination without interval, completing the oval form of the l)ody; feet all armed with bitid nails, none of which close on the preceding joint. "'Length less than three-twentiet
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