. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. 42 DISCOVERY REPORTS Gut. The oesophagus is short in all zooids examined, and the stomach (st.) barrel-shaped with from twenty to twenty-four narrow close longitudinal folds. The intestinal loop is usually rather short. The anus has two shallow lobes and is situated opposite the 5 th or 6th row of stigmata in zooids with twelve rows. Post-abdomen. In some zooids the post-abdomen is short but when fully grown it is very long and narrow, extending far down into the basal sand-covered test. It is t
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. 42 DISCOVERY REPORTS Gut. The oesophagus is short in all zooids examined, and the stomach (st.) barrel-shaped with from twenty to twenty-four narrow close longitudinal folds. The intestinal loop is usually rather short. The anus has two shallow lobes and is situated opposite the 5 th or 6th row of stigmata in zooids with twelve rows. Post-abdomen. In some zooids the post-abdomen is short but when fully grown it is very long and narrow, extending far down into the basal sand-covered test. It is typically very slender, being only half the width of the abdomen. mm. Text-fig. 6. Aplidium stanleyi (St. WS 229): A, colony; B, zooid; C, transverse section of stomach. Aplidium quadrisulcatum (St. 939): D, colony; E, 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 Institute of Oceanographic Sciences (Great Britain); National Institute of Oceanography of Great Britain; Great Britain. Colonial Office. Discovery Committee. London ; New York : Cambridge University Press
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