. Fresh-water biology. Freshwater biology. 127(124) Colony free, not enclosed by jelly Hirmidium Verty. Representative species. . Hirmidium inane Party 1852. As many as eleven individuals may be included in the colony. Un- der tile name Desmarella irregularis, Stokes describes a form with fifty individuals. Length of body, reported by Stokes, 8 to 12 m- Pond water. Fig. 421. Hirmidium inane. Colony X iss; single zooid X 32s. (After Stein.) 128(123) With stalks 129 129 (130) Stalk simple; many individuals borne at the end of the stalk. Codosiga James-Clark. Representative species. . Codosiga bo
. Fresh-water biology. Freshwater biology. 127(124) Colony free, not enclosed by jelly Hirmidium Verty. Representative species. . Hirmidium inane Party 1852. As many as eleven individuals may be included in the colony. Un- der tile name Desmarella irregularis, Stokes describes a form with fifty individuals. Length of body, reported by Stokes, 8 to 12 m- Pond water. Fig. 421. Hirmidium inane. Colony X iss; single zooid X 32s. (After Stein.) 128(123) With stalks 129 129 (130) Stalk simple; many individuals borne at the end of the stalk. Codosiga James-Clark. Representative species. . Codosiga boirytis Ehrenberg 1838. Bodies ovate; pedicel slender, rigid. Flagellum long. Collar equalling the body in length. Lengthof zooid 10 to is ;". Attached to aquatic plants. Kent reports that previous to encystment the collars and flagella of this species may be withdrawn into the protoplasm of the bodies, while the latter become covered with radiating pseudopodia. Occa- sionally the pseudopodia are produced while the collar is still ex- tended. Spores are formed during encystment. Fig. 422. Codosiga boirytis. X 350. (After 130 (129) Stalk branched, with single individuals or groups on the end of each branch Codonocladium Stein. Representative species. Codonocladium umbellatum Tatem 1868. Kent would refer this species to the genus Codosiga, in which genus some forms possess zooids with short pedicels attached to the end of the main stalk. Fig. 423. Codonocladium umbellatum. X soo. (After Coon.) 131 (i) Plant characteristics evident; chromatophores usually present; often producing colonies. Class Phytomastigophora . 132 132 (205) Body without a shell formed of plates; chromatophores yellow, brown, or green. . Subclass Phytoflagellata . 133 133 (164) Chromatophores usually yellow or brown. Order Chrysoflagellida . 134 134 (137) Body usually naked but may be enclosed in a jelly mass during resting stages 135. Please note that these images are extracted from scanned page im
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