. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. Text-fig. I. S. fusiformis (a) Solitary form, ventral view. Length 20 mm. (b) Aggregate form, dorsal view. Length 20 mm. (From Thompson, 1948.) Aggregate Form (Text-fig. ib) (Based on the examination of forty-eight specimens) External appearance. Body barrel shaped with conical anterior and posterior protuberances of the test which are typically long in relation to the body, giving it a slight asymmetry* and an elongate, fusiformis appearance. Test. Smooth, firm, transparent with no obvious ridg
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. Text-fig. I. S. fusiformis (a) Solitary form, ventral view. Length 20 mm. (b) Aggregate form, dorsal view. Length 20 mm. (From Thompson, 1948.) Aggregate Form (Text-fig. ib) (Based on the examination of forty-eight specimens) External appearance. Body barrel shaped with conical anterior and posterior protuberances of the test which are typically long in relation to the body, giving it a slight asymmetry* and an elongate, fusiformis appearance. Test. Smooth, firm, transparent with no obvious ridges. Body muscles. Six body muscles. M. I-IV and M. V-VI fuse dorsally, thus forming two groups. M. IV-V approach and join laterally. Muscle fibres. Mean number 51-8 ±1-4 for the total of M. I-VI, based on 45 specimens. See pp. 15-21 for explanation. Approximate mean number of fibres per muscle of 8-6. Alimentary canal. Compact, oval nucleus with its major axis lying to the right. Pale green in living specimens. * Note. In S. fusiformis and in the three other species to be described the protuberances or processes of the test are asymmetrical, the anterior being to the right, the posterior to the left, or vice versa depending on the zooid's original position in the 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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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
