. Bulletin - United States National Museum. Science. 240 BULLETIN 100, UNITED STATES NATIONAL MUSEUM Measurements.— Zooecia \Lz = mm. |k = ovicelled)|Z2 = mm. pertUre|Za = mm. Zooecia \Lz = mm. iha = mm. (ordinary)\lz = mm. [Za = mm. Structure.—The ectocyst is placed below the costules but applied closely against them; it is united with the proximal portion of the aperture which serves thus for the tentacles and the compensatrix. The costulated area is of variable size and according to the zooecia contains from 3 to 12 costules. The chitinous mandible
. Bulletin - United States National Museum. Science. 240 BULLETIN 100, UNITED STATES NATIONAL MUSEUM Measurements.— Zooecia \Lz = mm. |k = ovicelled)|Z2 = mm. pertUre|Za = mm. Zooecia \Lz = mm. iha = mm. (ordinary)\lz = mm. [Za = mm. Structure.—The ectocyst is placed below the costules but applied closely against them; it is united with the proximal portion of the aperture which serves thus for the tentacles and the compensatrix. The costulated area is of variable size and according to the zooecia contains from 3 to 12 costules. The chitinous mandible of the avicularium measures by mm. The ovicell is formed by the union of the inferior spicules of the distal zooecium; its structure. 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 United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
