. Annotationes zoologicae japonenses / Nihon do?butsugaku iho?. 4i8 NAOKATSU YANAGI AND YAICIIIRo OKADA : zocecium, the avicularium is con- siderably larger and is placed below the aperture with the mandible directed downwards. Vibracular appendage exhibits nearly the same feature as that of C. lata B. Ocecia large, prominent, rounded, its summit reaching to the lower apertural margin of superjacent zocecium, smooth surfaced, the wall on one side with elliptical membra- nous fenestra. Root-fibres occur in the same manner as in C. lata B. Three colonies of this new species exist in the collecti
. Annotationes zoologicae japonenses / Nihon do?butsugaku iho?. 4i8 NAOKATSU YANAGI AND YAICIIIRo OKADA : zocecium, the avicularium is con- siderably larger and is placed below the aperture with the mandible directed downwards. Vibracular appendage exhibits nearly the same feature as that of C. lata B. Ocecia large, prominent, rounded, its summit reaching to the lower apertural margin of superjacent zocecium, smooth surfaced, the wall on one side with elliptical membra- nous fenestra. Root-fibres occur in the same manner as in C. lata B. Three colonies of this new species exist in the collection. Localities: Okinosé 234-312 fms. ; Yodomi 78 fms. Characteristic of the species is the dimorphism of frontal avicularia. The two forms of these differ not only in size, but also in the opposite direction taken by the Fig. 5. Cixberea megacereas, n. sp. A. Frontal view, showing large frontal avi- cularia. x 32. B. Frontal view, showing small frontal avicu laria and oœcia. x 32. C. Mandible of small frontal avicularium. x 150. 14. Caherea lata Busk. Caberea lata, Busk 1852, Cat. Brit. Mar. Poly., I, 39, pi. xlvii.—Busk 1852, Voy. Ratt., I, 378.—Busk 1884, Chall. Rep., vol. X, pt. XXX, 30.—Ortmann 1890, Jap. Bry., 22, pi. i, fig. 5.—Thornely 1907, Ree. Ind. Mus., vol. I, 183. Of this species, there exist in the collection a few large and per- fectly preserved colonies, besides numerous fragments. Localities : off Jògashima 54 fms. ; Meranosé 312 fms. ; Yodomi 62-100 fms. ; off Oda- wara 120 fms., in the Sagami Sea. In all the specimens, the spinous processes are situated on zocecial border. Their presence, as also that of ocecia, are confined to the majority of intermarginal zocecia. The. 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. T
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