. Journal of morphology. 20, no. 4,March. 1911 Notes on the natural history of Amblystoma jeffersonianum, A. punctatum, and A. tigrinum. Bull. Wis. Nat. Hist. Soc, vol. 9, , Chas. H. 1882 Habits of Menopoma. Amer. Nat., vol. 16, no. , R. 1900 Brutpflege bei niederen Wirbeltieren. Biol. Centralb., Bd. 20. ^ Whitman, C. O. 1898 Animal behavior. Woods Hole Biological Lectures. PLATE 1 EXPLANATION OF FIGURES 53 Cryptobranchus allegheniensis. Living eggs dissected from the ovary,showing the germinal vesicle at the surface. The small spots within the germinalvesicle are pr
. Journal of morphology. 20, no. 4,March. 1911 Notes on the natural history of Amblystoma jeffersonianum, A. punctatum, and A. tigrinum. Bull. Wis. Nat. Hist. Soc, vol. 9, , Chas. H. 1882 Habits of Menopoma. Amer. Nat., vol. 16, no. , R. 1900 Brutpflege bei niederen Wirbeltieren. Biol. Centralb., Bd. 20. ^ Whitman, C. O. 1898 Animal behavior. Woods Hole Biological Lectures. PLATE 1 EXPLANATION OF FIGURES 53 Cryptobranchus allegheniensis. Living eggs dissected from the ovary,showing the germinal vesicle at the surface. The small spots within the germinalvesicle are probably nucleoli. Ovarian membranes containing blood-vesselswholly or partially cover the eggs. X 4. 54 Cryptobranchus allegheniensis. Unfertilized eggs with their gelatinousenvelopes, after two days immersion in water. Natural size. 154 CRYPTOBRANCHUS ALLEGHENIENSIS BERTRAM G. SMITH PLATE ] M 131 ?? 1l^^^_l P ^^?^^^j^^^^^^^^^^l ^^^H mi^ w w W^ ^CH ^^H ^^^^^^l^H^H 1 ^^A > 2Ji ^M ^ 9 ? HflHikig; ^ ^^^HHHJ ^^H 53. .lOURNAI/ OF MOBPHOLOOY, VOL. 23, NO. 1 54 155 PLATE 2 EXPLANATION OF FIGURES 55 Necturus maculosus. Nest of eggs of Nectunis. The stone to which theeggs are attached has been removed from the water and set on edge on the wharf;it is about IG inches in diameter. The embryos are in an advanced stage of devel-opment. 56 Necturus maculosus. Eggs and envelopes shown in their natural positionin the water, attached to a piece of board; natural size. Kroni a drawing byProfessor Bashford Dean. 15G NECTURUS MACULOSUS BERTRAM G. SMITH PLATE 2
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Keywords: ., bookcentury1900, bookdecade1, booksubjectphysiology, bookyear1912
