File:Montgomery Plethodon cinereus larva.jpg

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Summary[edit]

Description
English: Plethodon cinereus

Fig. 1 shows a larva freed from its envelopes before killing so that it had straightened out; and fig. 2, an older larva, similarly treated, but which had still retained much of its normal position. In fig. 3 is shown a camera drawing of a section through a stage somewhat younger than that of fig. 1.

Fig 3: The mouth (Mo.) leads through the pharynx (PA.) and oesophagus (OEs.) to the stomach (St.), and posteriorly to the latter is a short diverticulum (D.). The small intestine (Int.) is seen to be tubular in its proximal portion, but more distally to pass over into the wall of the yolk-mass (Yk.)

Fig. 4 and 5, dorsal portions of cross -sections of the larva shown in its entirety in fig. 1. Int., intestine; Yk., yolk; M. T., metanephroi; V.C., cartilaginous vertebral arches; N.C., notochord; So.A.L somatic mesoderm; S.D. segmental ducts; C. coelom; M., median mesenteries; L., liver; Ect., ectoderm; G.R. genital ridges; So.M., somatic mesoderm; Sp.M., sphlanchinic mesoderm;
Date
Source Thomas H. Montgomery, Jr. (1901). "Peculiarities of the Terrestrial Larva of the Urodelous Batrachian, Plethodon cinereus Green". Proceedings of the Academy of Natural Sciences of Philadelphia 53: 503-508.
Author Thomas H. Montgomery, Jr.

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Public domain

This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or less.


This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1923.

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