. Fresh-water biology. Freshwater biology. 36 (20, 3S) Dermal spicules stellate Dosilia Gray. Only species yet reported in the United States. Dosilia palmeri (Potts) 1885. Sponge massive, subspherical, lobate. Skeleton spicules sparsely microspined, curved, gradually pointed. Dermal spicules star- shaped, consisting of a variable number of arms of various lengths, radiating from a large smooth globular body; arms spined through- out. Gemmule birotulates with long spined shafts, rotules notched. From Colorado River, 60 miles below Fort Yuma, attached to pendent branches flooded by spring freshe
. Fresh-water biology. Freshwater biology. 36 (20, 3S) Dermal spicules stellate Dosilia Gray. Only species yet reported in the United States. Dosilia palmeri (Potts) 1885. Sponge massive, subspherical, lobate. Skeleton spicules sparsely microspined, curved, gradually pointed. Dermal spicules star- shaped, consisting of a variable number of arms of various lengths, radiating from a large smooth globular body; arms spined through- out. Gemmule birotulates with long spined shafts, rotules notched. From Colorado River, 60 miles below Fort Yuma, attached to pendent branches flooded by spring freshets. In the opinion of Annandale, Potts' var. palmeri is a different species from Carter's plumosa from India. He has seen types of both and is confident both belong to Dosilia. Fig. S74. Spicules of Dosilia palmeri. Five types of spicules figured here: robust, microspined skeleton spicule; spined gemmule birotulates; rotules of same, irregularly notched; substellate dermal spicules; imperfect form of same with only two rays; amorphous "Scotch terrier" forms. X 100. (After Potts.). 37 (15) Gemmule birotulates of two distinct classes 38 38(41) Dermal spicules stellate Asteromeyenia kaa&nAa^ 39 Spongillidae with birotulate gemmule spicules of two distinct types and free microscleres in the form of 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 Ward, Henry Baldwin, 1865-1945; Whipple, George Chandler, 1866-1924. joint author. New York, John Wiley & sons, inc. ; [etc. ,etc. ]
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfreshwa, bookyear1918
