This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1901 Excerpt: ... Conn., on piles of Ixng Wharf. (Clark.) Opercularella pumila Clark. (Trans. Conn. Acad., vol. tn, p.61.) Like 0. laceraia, but with smaller hydrotheca; and less deeply cleft segments of the opereulum. In comparing Dr. Clark's description and figure with sketches of 0. larerata made by myself in England I have serious ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1901 Excerpt: ... Conn., on piles of Ixng Wharf. (Clark.) Opercularella pumila Clark. (Trans. Conn. Acad., vol. tn, p.61.) Like 0. laceraia, but with smaller hydrotheca; and less deeply cleft segments of the opereulum. In comparing Dr. Clark's description and figure with sketches of 0. larerata made by myself in England I have serious doubts as to the validity of the former species, but consider it best to let it stand here, as I have not seen the type specimens. CALYCELLA. Trophosome.--Stem a creeping rootstock parasitic on other species of hydroids, polyzoons, etc., sending forth short annulated pedicels bearing tubular hydrothecie with distinct, segmented opercula. Gonosome.--Gonangia oval, borne on the rootstock and, when mature, bearing globular aeroeysts. Calycella syringa (Linn.)-Fig. 47. (Sertularia wjringa Linn., Syst. Nat., p. 1311.) Trophosome.--Pedicels shorter than hydrothecie, very deeply annulated. Hydrothecie tubular, with thick horn-colored walls and slightly sinuated margins; opercular segments rather short, triangular, aml capable of being drawn into the hydrotheca when the hydranth is retracted. There i-i often a sort of an addition or tubular extension beyond the end of the hydrotheca, with a distinct margin bearing the opercular segments. Gonosome.--Gonangia oval, borne on short annulated pedicels and, when mature, with globular aeroeysts. Distribution.--Found abundantly in the Woods Hole region, growing over all sorts of plant-like marine organisms, especially other hydroids. CUSPIDELLA. Trophosome.--Hydrotheca' sessile with a conical operculum. Hydranths with a conical hypostome. Gonosome.--Not known. Cuspidella costata Hincks. lBritish Hydroid Zoophytex, p. 21Q.) Trophosome.--Hydrothecie perfectly cylindrical and sessile, encircled with usually thre...
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Add this copy of The Hydroids of the Woods Hole Region to cart. $61.95, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2016 by Palala Press.
