Discovery reports (1962) Discovery reports discoveryreports30inst Year: 1962 DESCRIPTION OF SPECIES 61 They are of a regular stellate shape, with about eight rays in optical section (Text-fig. 13 B). Small spindle-shaped and irregular cells are also present in the test, but no pigment cells. Zooid (Text-fig. 13 A). The thorax often reaches 2 mm. in length. The abdomen, including the long waist, is about the same length, or slightly more. These zooids are larger than Michaelsen's (1924), which had a total length of 2-5 mm. In most zooids the oral siphon () is quite long, tubular mm
Discovery reports (1962) Discovery reports discoveryreports30inst Year: 1962 DESCRIPTION OF SPECIES 61 They are of a regular stellate shape, with about eight rays in optical section (Text-fig. 13 B). Small spindle-shaped and irregular cells are also present in the test, but no pigment cells. Zooid (Text-fig. 13 A). The thorax often reaches 2 mm. in length. The abdomen, including the long waist, is about the same length, or slightly more. These zooids are larger than Michaelsen's (1924), which had a total length of 2-5 mm. In most zooids the oral siphon () is quite long, tubular mm Text-fig. 13. Leptoclinides diemenensis Michaelsen (St. 935): A, zooid; B, spicule. to conical, and muscular, with six shallow pointed lobes. The base of the atrial siphon () is at or slightly posterior to the middle of the branchial sac. The siphon varies in length in different zooids, but often is longer than the oral siphon. It is frequently, but not always, backwardly directed. Five or six slender longitudinal muscles pass along each side of the thorax. Near the posterior end of the thorax there is a conspicuous lateral thoracic organ () on each side. The mass of spicules occupying the cavity of the organ is about 125 ju in diameter. Branchial sac. There are twelve to fourteen long narrow stigmata in each of the four rows. The dorsal languets are short, triangular, and blunt.
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