. The Australian zoologist. Zoology; Zoology; Zoology. 144 A NEW CYCLOSTOMATOUS BRYOZOAN. ; filament, length (All measurements, except those for the un- izooecial internode, are taken from the holotype.) Type Material.—Holotype (Fig. 2), Nat. Mus. Coll., Regd. No. 68,331. Paratypes (Fig. 1), Nat. Mus. Coll., Regd. No. 68,332 (Fig. 3), Nat. Mus. Coll., Regd. No. 68,333. Affinities.—This species differs from the genotype (B. edwardsiana) in the more squat appearance of the internodes, the segmented filaments projecting from each, instead of from one, of the upper angles of the internode
. The Australian zoologist. Zoology; Zoology; Zoology. 144 A NEW CYCLOSTOMATOUS BRYOZOAN. ; filament, length (All measurements, except those for the un- izooecial internode, are taken from the holotype.) Type Material.—Holotype (Fig. 2), Nat. Mus. Coll., Regd. No. 68,331. Paratypes (Fig. 1), Nat. Mus. Coll., Regd. No. 68,332 (Fig. 3), Nat. Mus. Coll., Regd. No. 68,333. Affinities.—This species differs from the genotype (B. edwardsiana) in the more squat appearance of the internodes, the segmented filaments projecting from each, instead of from one, of the upper angles of the internode and in the more elongate outline of the brood chamber. From Bicrisia biciliata (Macgillivray, 1868) it differs in having a less salient peristome, relatively shorter internodes and a single segmented filament, in place of two filaments to each upper angle. The brood cham- ber in both species is, however, almost identical. Observations.—The brittle nature of the zoaria did not permit of full observations on the mode of branching. Only one instance of an attached branch was observed. This occurred on the upper abzooecial angle of a fertile internode, while the upper angle of the other zooecium was unfor- tunately broken. It is suggested that a branch may arise from each upper abzooecial angle of a fertile internode and that dichotomous branching of this type is the probable mode of development of the zoarium. In only two of the eighty-one internodes examined were two filaments present in place of the normal single filament, and then they arose from one angle of the internode Bicrisia warrnamboolensis, sp. nov. Fig. 1.—Proximal region of zoarium illustrating early development. (Paratype, No. 68,332 x 30. Fig. 2.—Fragment of zoarium showing zooecial detail, brood chamber and mode of branching. The brood chamber (be) is foreshortened owing to its oblique attitude. (Holotype, No. 68,331) x 60. Fig. 3.—Portion of branch displaying the possibly protective function o
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1914
