. The Biological bulletin. Biology; Zoology; Marine biology. 98 RICHARD D. CAMPBELL. Gastrozooid Gonozooid Stolon branch Figure 2. Gastrozooids, with gonozooids, migi-ating along glass tube, 24 hours after colony- was streched over the glass. Tracings from photographs. 2a: Three polyps which have stopped migrating, with stolon branches developing behind. These branches resemble those giving rise to new gastrozooids and to stolon anastomosis. 2b: Several polyps showing tendency to follow stolons. Shaded portion represents the edge of the worm tube. large gastrozooids have such an associated gon
. The Biological bulletin. Biology; Zoology; Marine biology. 98 RICHARD D. CAMPBELL. Gastrozooid Gonozooid Stolon branch Figure 2. Gastrozooids, with gonozooids, migi-ating along glass tube, 24 hours after colony- was streched over the glass. Tracings from photographs. 2a: Three polyps which have stopped migrating, with stolon branches developing behind. These branches resemble those giving rise to new gastrozooids and to stolon anastomosis. 2b: Several polyps showing tendency to follow stolons. Shaded portion represents the edge of the worm tube. large gastrozooids have such an associated gonozooid.) However, a few gono- zooids are scattered sparsely over the distal half of the colony, inserted at random positions on the stolon network. The dactylozooids (Hirai, 1960) are short, straight or slightly curved polyps, each crowned by a nematocyst bundle. They are scattered over the proximal region of the colony, Uchida and Okuda (1941) have termed such polyps as minute gonozooids lacking medusa buds. Hand (1954) termed them as young or abor- tive gonozooids. Intermediate polyp forms may be found between the territories of gonozooids and dactylozooids. These forms are intermediate in length and often bear one or several minute or abortive medusa buds. The Prohoscidactyla colony organization is thus predominantly axiate along the tube, with several regions identifiable in terms of stolon patterns and polyp types. i. 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 Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-; Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report; HighWire Press. Lancaster, Pa. [etc. ] : Lancaster Press, inc. [etc. ]
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