. Annotationes zoologicae japonenses / Nihon do?butsugaku iho?. IÓ2 I. IJIMA AND T. KABUKAKI. of the duct. Intromittcnt part of penis conical, massive, nearly horizontal. Ovaries two, placed ventrally between second and third gut branches. Oviducts open separately into the outer end of the rather wide vaginal canal, not directly into atrium. Receptaculum seminis moderately large, situated in front of penis. Localities :—Under sunken objects in running as well as stagnant waters in various parts of Hondo. This species, which is also known from Europe and North America, is the commonest and the
. Annotationes zoologicae japonenses / Nihon do?butsugaku iho?. IÓ2 I. IJIMA AND T. KABUKAKI. of the duct. Intromittcnt part of penis conical, massive, nearly horizontal. Ovaries two, placed ventrally between second and third gut branches. Oviducts open separately into the outer end of the rather wide vaginal canal, not directly into atrium. Receptaculum seminis moderately large, situated in front of penis. Localities :—Under sunken objects in running as well as stagnant waters in various parts of Hondo. This species, which is also known from Europe and North America, is the commonest and the most widely dis- tributed freshwater planarian in Japan. 7. Planaria papilliferum n. sp. Woodcuts 14 and 15. Frontal margin subtruncate, weakly crenate ; lateral lobes rounded, not produced into tentacles. Head indistinctly marked off from trunk by a slight neck-like constriction. Trunk slender, nearly uniformly broad down to about the region of copulatory organs, then gradually tapering to the rounded hind end. Characteristic is the presence of a linear series of small, low and truncate papillae in the mid- dorsal line. The papillae number 2c- 25 in all ; epidermis on them thickly set with rhabdites. The series of papillae commences sometimes in front of, and at other times behind, the eyes. Dimensions of largest specimens in the creeping state : 7—8 mm. long and 1-1 ^ mm. broad. Ratio of breadth to length I : 6-7. General color of dorsal surface in the larger specimens somewhat 14 15. 14. Planaria fapillifera, n. sp. in the creep- ing state. Dorsal papillae indicated by dots in the median line. gX. 15. Same. Diagram of sexual organs. Index letters as in woodcuts 2, 4 and 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 Nihon Do?butsu Gakkai; To?kyo? Do?butsu Gakkai. Tokyo : Societas
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Keywords: ., bookcentury1800, bookcollectionbiod, bookdecade1890, bookyear1897
