Report of the United States Geological Survey of the territories . .] 3, c. One of the septa, slightly more than natural size. Fig. 1. Scaphites veumiformis 423 4, a. A side view of an internal cast, natural size (type-specimen).4, b. Another view-of same, showing aperture, etc. Fig. 5. Scaphites Warreni 420 A side view of the type-specimen, which is imperfect, and does not give an entirely clearidea of the species. [See remarks and further illustrations iu text.] Fig* 6. Scaphites formis . 418 6, a. Side view, natural size, of the type-specimen. 6, b. A peripheral view of same, turned
Report of the United States Geological Survey of the territories . .] 3, c. One of the septa, slightly more than natural size. Fig. 1. Scaphites veumiformis 423 4, a. A side view of an internal cast, natural size (type-specimen).4, b. Another view-of same, showing aperture, etc. Fig. 5. Scaphites Warreni 420 A side view of the type-specimen, which is imperfect, and does not give an entirely clearidea of the species. [See remarks and further illustrations iu text.] Fig* 6. Scaphites formis . 418 6, a. Side view, natural size, of the type-specimen. 6, b. A peripheral view of same, turned a little obliquely. G, c. A septum of same, magnified to a little more than two 7 and 8. Scaphites ventricosus 425 7. a. View el periphery and aperture, natural size, of type-specimen. 7, h. A side view of same specimen. 8, a. Ii Two views of a specimen, consisting of inner volutions, and believed to belong to the same species,fi, o. A septum of same, slightly enlarged. U,^M,:Hu[inUCaL§UrtH\! irttlir <ln i in i Fori licnloii C. PLATE 7. Page. Figs. 1 and 3. Prionocyclus Woolgari 455 1, a. A side view of an imperfect specimen, somewhat less than half grown, showing the large cremilations of the keel, , b. A peripheral view of the same; one side being , c. A side view of a smaller specimen, with the .cremilations of the keel and the nodes of the eosta? less strongly , il. A peripheral view of the , e. A septum, magnified about two and a half diameters, from a specimen intermediate in size between the last ,f. A still smaller specimen, with the cremilations of the keel and the nodes of the costal only just beginning to bo , g. A large specimen, showing the modifications of the keel, eosta, and nodes in the adult shell. 1, h. A part of a septnm, consisting of the siphonal lobe and the first and second lateral lobes and sinuses, magnified about one and a half diameters from the large specimen rep-rese
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Keywords: ., bookcentury1800, bookdecade1870, bookpublisherwashi, bookyear1876
