. A text-book of invertebrate morphology. Invertebrates. 620 INVERTEBRATE MORPHOLOGY. siphons, in whose walls circular muscles are developed to serve as sphincters of the openings. The branchial siphon opens posteriorly into the branchial region of the digestive. Fig. 383.âFiguee of a Tunicatb, Seterotrema, removed from the Test (after Fiedler). A = atrial pore. po = peripharyngeal ciliated band. an = auus. ' s = stomach. 00 = cerebral ganglion. sn = subneural gland. en = endostyle. si = branchial stigma. ex = excretory organs, t = testis. / = intestine. â »(? = vas deferens. tract, the openi
. A text-book of invertebrate morphology. Invertebrates. 620 INVERTEBRATE MORPHOLOGY. siphons, in whose walls circular muscles are developed to serve as sphincters of the openings. The branchial siphon opens posteriorly into the branchial region of the digestive. Fig. 383.âFiguee of a Tunicatb, Seterotrema, removed from the Test (after Fiedler). A = atrial pore. po = peripharyngeal ciliated band. an = auus. ' s = stomach. 00 = cerebral ganglion. sn = subneural gland. en = endostyle. si = branchial stigma. ex = excretory organs, t = testis. / = intestine. â »(? = vas deferens. tract, the opening being known as the mouth, and usually being surrounded by a number of tentacles (Fig. 283) which arch over it. The atrial siphon, on the other hand, does not open into the body proper but into a cavity, lined probably. 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 McMurrich, J. Playfair (James Playfair), 1859-1939. New York, H. Holt and Company
Size: 1128px × 2214px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1894
