. Bulletin of the Natural History Museum Zoology. 42 PILLAI AND HA. TEN HOVE. Plate 2 Scanning electron micrographs of chaetae. A-D, Spiraserpula massiliensis (Zibrowius, 1968): A, bayonet chaetae. B, thoracic uncini. C, anterior abdominal uncini. D, flat trumpet-shaped abdominal chaetae. E & F, 5. singularis sp. nov.: E, bayonet chaetae. F, abdominal uncini. and they have been taken into consideration in the following diagnosis: Tube with internal structures, usually towards its earlier formed, coiled, posterior portions. They consist of internal longitudinal ridges which vary in for
. Bulletin of the Natural History Museum Zoology. 42 PILLAI AND HA. TEN HOVE. Plate 2 Scanning electron micrographs of chaetae. A-D, Spiraserpula massiliensis (Zibrowius, 1968): A, bayonet chaetae. B, thoracic uncini. C, anterior abdominal uncini. D, flat trumpet-shaped abdominal chaetae. E & F, 5. singularis sp. nov.: E, bayonet chaetae. F, abdominal uncini. and they have been taken into consideration in the following diagnosis: Tube with internal structures, usually towards its earlier formed, coiled, posterior portions. They consist of internal longitudinal ridges which vary in form and complexity in the different species; they may be dorsal, along the convex inner wall of the tube, and/or ventral, along the opposite side. They may be laminar, serrated or unserrated, or have other forms, and accessory lateral ridges or other structures may also be present. An umbilicus and peristomes may be present. There is usually an external granular overlay which bonds together coils of individual tubes, or those of other tubes to form. 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 Natural History Museum (London). Andover : Intercept
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