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Clathrina lacunosa : ウィキペディア英語版 | Clathrina lacunosa
''Clathrina lacunosa'' is a species of calcareous sponge in the genus ''Clathrina'' from Ireland and the United Kingdom. Species name means "having holes" and refers to the perforations found in the sides of the sponge. ==Description== Sponge composed of an ovoid body of thin, tightly and regularly anastomosing tubes, and a solid peduncle without any choanoderm. Water-collecting tubes converge into one apical osculum. Colour white in ethanol and light beige when dried. Triactines from the clathroid body range from almost regular to parasagittal with straight actines. Close to the peduncle there are parasagittal spicules with the longest unpaired actine pointing towards the peduncle. The skeleton of the peduncle is composed of large diactines with a break on the middle, and parasagittal triactines with a very long unpaired actine and short paired actines. Irregular diactines of variable sizes are present at low numbers in the peduncle. All actines are cylindrical with slightly blunt to sharp points.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Clathrina lacunosa」の詳細全文を読む
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