Monograph of the Palaeontographical Society . he shell), representing the muscular system, &c., of the same.(The various structures in the three figures have the samereference letters.) A, Teeth or condyles. B, Dental , Socket plates. D, Crural base. jBj Crura of the loop. F, Loop. G, Dorsal median , Foramen. /, Deltidium (divided). /, Cardinal muscular fulcrum. a. Pedicle. b. .Superior pedicle muscles. c. Cardinal muscles. d. Valvular muscles. e. Inferior pedicle muscles. f. Impressions of the posterior divisions of the valvular muscles,y. Do. of the anterior divisions. PLATE
Monograph of the Palaeontographical Society . he shell), representing the muscular system, &c., of the same.(The various structures in the three figures have the samereference letters.) A, Teeth or condyles. B, Dental , Socket plates. D, Crural base. jBj Crura of the loop. F, Loop. G, Dorsal median , Foramen. /, Deltidium (divided). /, Cardinal muscular fulcrum. a. Pedicle. b. .Superior pedicle muscles. c. Cardinal muscles. d. Valvular muscles. e. Inferior pedicle muscles. f. Impressions of the posterior divisions of the valvular muscles,y. Do. of the anterior divisions. PLATE XXI. Fig. 1. Palseoniscus comtus, Ac/assiz. ^| Scales magnified. Marl-slate, Thrislington Gap. Belonging to the Natural History Society ofNorthumberland, Durham, and by Mr. T. Hodgson. 2. Palaeoniscus longissimus, Agassiz. c, Scale magnified: Marl-slate, Thrislington Gap. Natural History Society of Northumberland,Durham, and Newcastle-on-Tyne. Mr. T. Hodgson. ^ All the figures are of the natural size. //. J
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Keywords: ., bookcentury1800, bookdecade1840, booksubjectpaleontology, bookyea
