Discovery reports (1962) Discovery reports discoveryreports30inst Year: 1962 DESCRIPTION OF SPECIES 67 A row of pointed triangular languets occupies the mid-dorsal line of the branchial sac. The trans- verse rows of stigmata number thirteen to twenty-seven, according to the size of the zooid, and the rows lie in line with the long axis of the stalk. The anterior and posterior rows are shorter than the middle ones, and the shortest rows have less than twenty stigmata, whereas at least sixty are present in the longest. The endostyle (e) is conspicuous and strongly curved. Table 21 P. detorta P

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Discovery reports (1962) Discovery reports discoveryreports30inst Year: 1962 DESCRIPTION OF SPECIES 67 A row of pointed triangular languets occupies the mid-dorsal line of the branchial sac. The trans- verse rows of stigmata number thirteen to twenty-seven, according to the size of the zooid, and the rows lie in line with the long axis of the stalk. The anterior and posterior rows are shorter than the middle ones, and the shortest rows have less than twenty stigmata, whereas at least sixty are present in the longest. The endostyle (e) is conspicuous and strongly curved. Table 21 P. detorta P. kottac Number of rows of stigmata 'Apparently 6' (van Name, 1918) Up to 27 Lower end of intestinal loop Some distance up from base of At base of stalk stalk Anus Far anterior to oesophageal Beside oesophageal mouth; mouth; lobed (Sluiter, 1904) without lobes as

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