. Annual report of the regents of the university of the state of New York on the condition of the State Cabinet of Natural History and the historical and antiquarian collection annexed thereto. Orthisina 1. Dorsal valve of a small individual. Fig. 2. Dorsal valve of a larger individual. AMBOCCELIA GREGARIA ( n. s.). Compare with Atrypa unguiculus, Sowerby, Geol. Transactions, Vol. v, pi. 54, f. unguiculus, Phillips, Pal. Fossils, pi. 28, f. unguiculus, Hall, Geol. Report Fourth District of New-York, p. 268, f. 5 a, b, c, d ; p. 267. Shell subhemispherical,
. Annual report of the regents of the university of the state of New York on the condition of the State Cabinet of Natural History and the historical and antiquarian collection annexed thereto. Orthisina 1. Dorsal valve of a small individual. Fig. 2. Dorsal valve of a larger individual. AMBOCCELIA GREGARIA ( n. s.). Compare with Atrypa unguiculus, Sowerby, Geol. Transactions, Vol. v, pi. 54, f. unguiculus, Phillips, Pal. Fossils, pi. 28, f. unguiculus, Hall, Geol. Report Fourth District of New-York, p. 268, f. 5 a, b, c, d ; p. 267. Shell subhemispherical, wider than long : hinge-line straight; cardinal anglesrounded. Ventral valve gibbous, marked by a shallow mesial sinus, which ex-tends from near the beak to the base of the shell: beak obtuse, strongly valve semielliptical, depressed convex, with sometimes a slight longitudi-nal central depression; foveal plates slender and species differs from in the less regular convexity of the ventralvalve, the greater convexity of the dorsal valve, and the proportionally greatertransverse diameter. I had originally considered this shell as identical with Atr
Size: 1930px × 1295px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1850, booksubjectscience, bookyear1853
