. Amphioxus and the ancestry of the vertebrates [microform]. Vertebrates; Chordata; Fishes; Ascidiacea; Vertébrés; Cordés; Poissons; Ascidiacés. Figs. 119 and 120. — Auricularia, larva of Synapta (after Semon) ; and Tornaria, larva of lialanoglossus. (After ) a. Anus. -Apical plate, bc^. Anterior body-cavity, communicating witii exterior by the water-pore, be-, bc^. Second and third body-cavities of Tornaria. Circular ciliated liand of Tornaria. Contractile cord between apical jilate and anterior body-cavity of Tornaria. Gill-pouches. Hydrocoel of Auricularia
. Amphioxus and the ancestry of the vertebrates [microform]. Vertebrates; Chordata; Fishes; Ascidiacea; Vertébrés; Cordés; Poissons; Ascidiacés. Figs. 119 and 120. — Auricularia, larva of Synapta (after Semon) ; and Tornaria, larva of lialanoglossus. (After ) a. Anus. -Apical plate, bc^. Anterior body-cavity, communicating witii exterior by the water-pore, be-, bc^. Second and third body-cavities of Tornaria. Circular ciliated liand of Tornaria. Contractile cord between apical jilate and anterior body-cavity of Tornaria. Gill-pouches. Hydrocoel of Auricularia (anterior body-cavity), Longitudinal (circumoral) ciliated band. Left enterocoel (body-cavity), m. Mouth. «. Lateral (paired) nerve-band of Auricularia. Right enterocoel. sp. Calcareous spicules, st. Stomach. •u>p. Water-pore. — In Auricularia, the margin of the mouth is surrounded by a ciliated band discovered l)y Skmon, and known .as the adoml ciliated band. The poste- rior, V-shaped portion of this band lies inside on the ventral floor of the larval 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 Willey, Arthur, 1867-1942. New York; London : Mcmillan
Size: 1366px × 1830px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectfishes, bookyear1894
