. Chordate anatomy. Chordata; Anatomy, Comparative. APICAL PLATE GILL SLITS^ P/IC (ANT ENDO. DIVERTICULA) COLLAR CAVITIES. NOTOCHORD PROBOSCIS IRCULAR BAND OF CILIA ^TRUNK CAVITIES Fig. 5.—Balanoglossus embryos. A. A horizontal section of a young embryo, showing the origin of mesodermal pouches. McBride and others have noted the similarity of this section to that of a young Amphioxus embryo as evidence of the close affinity of these two forms. B. A young Balanoglossus larva with five pairs of gill-slits, viewed from the left side. The gill-slits of Balanoglossus bear a striking resemblance to
. Chordate anatomy. Chordata; Anatomy, Comparative. APICAL PLATE GILL SLITS^ P/IC (ANT ENDO. DIVERTICULA) COLLAR CAVITIES. NOTOCHORD PROBOSCIS IRCULAR BAND OF CILIA ^TRUNK CAVITIES Fig. 5.—Balanoglossus embryos. A. A horizontal section of a young embryo, showing the origin of mesodermal pouches. McBride and others have noted the similarity of this section to that of a young Amphioxus embryo as evidence of the close affinity of these two forms. B. A young Balanoglossus larva with five pairs of gill-slits, viewed from the left side. The gill-slits of Balanoglossus bear a striking resemblance to those of Amphioxus. On the other hand the young larva of Balanoglossus is strik- ingly like the larva of echinoderms. (Redrawn after Bateson.) .GILL-SLIT. 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 Neal, Herbert V. (Herbert Vincent), 1869-1940; Rand, Herbert W. (Herbert Wilbur), 1872-1960. Philadelphia : P. Blakiston's Son & Co.
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Keywords: ., bookcentury1900, bookpublisherphi, booksubjectanatomycomparative
