. African invertebrates : a journal of biodiversity research. Invertebrates -- Africa; Biological diversity -- Africa; Biological diversity. A COLLECTION OF HYDROIDS. 311 pair {). Tliere is also occasionally a little peg of cliitiu on the outer wall a little above the base {I.})-)- Total length, measured parallel to the abcauline edge, 0'263 mm.; greatest breadth O'lOo mm. Operculum probably two flaps. Hy dranth.—Tentacles 13-14. The layer o£ ectoderm lining the hydrotheca is thickened along the outer margin (fig. D, 72-.), and it contains a. row of vertically placed nematocysts, Text-fi
. African invertebrates : a journal of biodiversity research. Invertebrates -- Africa; Biological diversity -- Africa; Biological diversity. A COLLECTION OF HYDROIDS. 311 pair {). Tliere is also occasionally a little peg of cliitiu on the outer wall a little above the base {I.})-)- Total length, measured parallel to the abcauline edge, 0'263 mm.; greatest breadth O'lOo mm. Operculum probably two flaps. Hy dranth.—Tentacles 13-14. The layer o£ ectoderm lining the hydrotheca is thickened along the outer margin (fig. D, 72-.), and it contains a. row of vertically placed nematocysts, Text-fig. A(,e) Sertularia bideus Bale. measuring 6"6 fx in length and 1'4 /n in breadth. Nematocysts Avere not distinguished on the tentacles. There is also a thickening of the hydrothecal ectoderm on the adcauline surface (D, tli.). GrONOSOME.—Gonangia long, sub-tubular, Avith Iavo sharp angles at the sides of the aperture. Aperture operculate, margin elevated and slightly everted. The gonangia originate from the stem just above the origins of the pinna^, and they are reorularlv directed risfht 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 Natal Museum (Pietermaritzburg, South Africa). Council. Pietermaritzburg, South Africa : Council of the Natal Museum
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Keywords: ., book, bookcentury1900, bookcollectionbiodiversity, bookdecade1900
