. The geology of Nova Scotia, New Brunswick, and Prince Edward Island, or, Acadian geology [microform]. Geology; Geology, Stratigraphic; Paleontology; Geology, Economic; Géologie; Géologie stratigraphique; Paléontologie; Géologie économique. uliar, and I'lHtinctivo rom East W. D. 9 a very erelegans, it slifihtly ipart in ii rfaco witli f an incli visible ti) licroscope ho spaces Arisaig, D. This I the cross Ic slightly len two to land oma- manner striated an. This and Mr was. 10 opo m ndcr, and icns from tlic com- er, are so ver, coll. omcwhat anterior '?I F0BSIL8. 607 side greater than the le
. The geology of Nova Scotia, New Brunswick, and Prince Edward Island, or, Acadian geology [microform]. Geology; Geology, Stratigraphic; Paleontology; Geology, Economic; Géologie; Géologie stratigraphique; Paléontologie; Géologie économique. uliar, and I'lHtinctivo rom East W. D. 9 a very erelegans, it slifihtly ipart in ii rfaco witli f an incli visible ti) licroscope ho spaces Arisaig, D. This I the cross Ic slightly len two to land oma- manner striated an. This and Mr was. 10 opo m ndcr, and icns from tlic com- er, are so ver, coll. omcwhat anterior '?I F0BSIL8. 607 side greater than the length of the axis. Axis wider than the lateral lobes, distinguishable (in casts) from the lobes by a bending of the ribs and a scarcely perceptible depression along that line; anmilations abruptly prominent; seven on the lateral lobes and nine on the axis, the anterior ones bending slightly backward at the lino of division between the axis and tlio lateral lube; each successive one bending more and more abruptly till tlio last one approaches a rectangular turn; the whole curving gently forward at their extremities, and all terminating abruptly before reaching the margin. Behind the seventh annulation the axis is marked by two more annulations, leaving nearly one-fourth of its length smooth. This species is described from the casts and impressions of the caudal shield, so that the crustaceous covering is unknown. It ia readily distinguished by the broad not prominent axis, the rectangular direction of the annulations on the axis, and abrupt bending at the lateral furrow. An impression of a few imperfect annulations of the body shows that they arc strongly elevated, much more so than in any known American species. Arisaig, coll. J. W. D. Fig. 1\i.—IIomalonotua Dawsoni, Head and Fig. 215.—DaZnwnia Logani, Head and rygidium. When Professor Ilall described this species, the caudal shield only was known, with some of the segments of the body. I)r Uoneyman su
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Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology
