T KY Teikoku Daigaku Rika Daigaku Kiy (15 ) (English, Latin, Paperback)

. 1901 edition.: ... In consideration of what we know about the relation of the Walleria species to the commensal Hydrozoa (see anon, under W. leuckarti), this question is possibly to be answered in the affirmative. However, nothing like the papilla;, or the peculiarly modified dermalia (PI. X, figs. 25-27) in connection with them, has before been described from 11. phoenix. The coarse parenchymal bundles, exposed on the external surface, pursue a sinuous course in oblique or in nearly longitudinal directions (PI. XI, fig. 2). The bundles, more deeply situated and exposed on the gastral surface, take a course which is inclined to be transverse in direction, similarly as we have seen in other species of the genus. In the upper part the principal bundles of the skeleton run obliquely right up to the sieve-plate border, exactly as is to be seen in the figure of R. phoenix giveu by Schulze in the Challenger Report. Some bundles, but by no means all, extracted from the lower part of the specimen exhibit the synapticular fusion of the inegascleric elements. Much less frequently such fusion is to be met with in about the middle, and none at all still higher above. Were the base of the specimen preserved, just the same condition as has been known from R. phoenix in regard to the fusion of spicules in that region would undoubtedly have been found. The said condition of the base admits, as was remarked by Schulze ('87), of the occurrence of several specimens growing one within another, each inner one representing a younger generation seated within the dead skeletal remnant of the preceeding generation. O. Schmidt ('80) observed such occurrences when he first described R. phoenix, which specific name he chose on that account. Topsent ('96) mentions a case in which as many as fine generations were represented in the manner uoticed, and recently Schulze ('99) has added still another instance to the list. It scarcely needs to be remarked that this piling up, as it were, ...