. Outlines of zoology. Zoology. Fig. 68.—Diagrammatic figure of a simple Turbellarian. m., Mouth ;ph., pharynx \g., digestive part of gut; , longitudinal excre- tory vessels; , excretory pore; Ect., ciliated ectoderm ; Ms., meso- derm ; End., endoderm. Fig. 69.—Diagrammatic figure of part of the structure of a simple Turbellarian. Ect., Ciliated ectoderm ; , cerebral ganglion; , lateral nerve; T., testes; ov., ovary. a unisexual fresh-water genus, with stinging cells, which forms tempor- arily united asexual chains, sometimes of sixteen individuals, suggesting the origin of a s
. Outlines of zoology. Zoology. Fig. 68.—Diagrammatic figure of a simple Turbellarian. m., Mouth ;ph., pharynx \g., digestive part of gut; , longitudinal excre- tory vessels; , excretory pore; Ect., ciliated ectoderm ; Ms., meso- derm ; End., endoderm. Fig. 69.—Diagrammatic figure of part of the structure of a simple Turbellarian. Ect., Ciliated ectoderm ; , cerebral ganglion; , lateral nerve; T., testes; ov., ovary. a unisexual fresh-water genus, with stinging cells, which forms tempor- arily united asexual chains, sometimes of sixteen individuals, suggesting the origin of a segmented type; Graffilla and Anoplodium, parasitic (cf. next class). (3) Alloioccela. With lobed or irregular gut. All marine except one from Swiss lakes (Plagiostoma Lemani). B. Tricladida. Elongated flat '' I'lanarians" ; the mouth and tubular pharynx lie behind the middle of the body ; intestine with three. 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 Thomson, J. Arthur (John Arthur), 1861-1933. Edinburgh, Glasgow and London, H. Frowde and Hodder & Stoughton
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Keywords: ., bookauthorth, bookcentury1800, bookdecade1890, booksubjectzoology
