. Elements of conchology / Prepared for the use of schools and colleges. Mollusks. Fig. 85.—GLAUCUS. ORDSR OF GiLSTEROFODiL HETEROFODil. 43. These gasteropods are not organized, like all the pre- ceding, for crawling on the belly, but for swimming only. In fact, their foot, in place of forming a horizontal fleshy disk, is compressed into a vertical membranous plate, which is used as a fin. Their body is formed of a transparent, gelatinous sub- stance, and their branchise are placed on the posterior part of the back. The principal genera of this group are the Carinaria and FlOROLA. y e hr c /.
. Elements of conchology / Prepared for the use of schools and colleges. Mollusks. Fig. 85.—GLAUCUS. ORDSR OF GiLSTEROFODiL HETEROFODil. 43. These gasteropods are not organized, like all the pre- ceding, for crawling on the belly, but for swimming only. In fact, their foot, in place of forming a horizontal fleshy disk, is compressed into a vertical membranous plate, which is used as a fin. Their body is formed of a transparent, gelatinous sub- stance, and their branchise are placed on the posterior part of the back. The principal genera of this group are the Carinaria and FlOROLA. y e hr c /. Fig. 86.—CARINARIA MKDITERRANEA. Explanation of Fig. 8G.—h. the mouth ;—t. the tentacles;—y. the eyes;— e. the stomach;—/. the liver ;—c. the shell;—hr. the branchiae ;—p. the foot; —r. a small sucker situate on the side of the foot. 43. What are the characters of the Heteropo'da ? (Heteropoda; from the Greek, eleros^ various, and poMS, foot.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ruschenberger, W. S. W. (William Samuel Waithman), 1807-1895; Comté, Achille, 1802-1866; Milne-Edwards, H. (Henri), 1800-1885. Philadelphia : Grigg & Elliot
Size: 2477px × 1009px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1840, booksubjectmollusks, bookyear184
