. Bulletin of the British Museum (Natural History), Geology. 46 P. D. TAYLOR. Fig. 119 Semielea vieilbanci (d'Orbigny, 1850), BMNH D59372, Turanian, Lavardin, Loir-et-Cher, France; longitudinally fractured branch showing axial lumen with wrinkled lining wall, x 21. diaphragms with a transverse depression present in many zooids. Intramurally budded eleozooids present; aperture triangular in shape, longer than wide. Kenozooids not observed. Eleozooids (except intramural buds) of uncertain presence. Gonozooids not observed. Measurements (approximate determinations taken from the lectotype MNHN d'
. Bulletin of the British Museum (Natural History), Geology. 46 P. D. TAYLOR. Fig. 119 Semielea vieilbanci (d'Orbigny, 1850), BMNH D59372, Turanian, Lavardin, Loir-et-Cher, France; longitudinally fractured branch showing axial lumen with wrinkled lining wall, x 21. diaphragms with a transverse depression present in many zooids. Intramurally budded eleozooids present; aperture triangular in shape, longer than wide. Kenozooids not observed. Eleozooids (except intramural buds) of uncertain presence. Gonozooids not observed. Measurements (approximate determinations taken from the lectotype MNHN d'Orbigny Collection 8194, Voigt Pho- tocard 8321). autozooids apertural length: ca 0-21-0-25 mm apertural width: ca 0-20-0-22 mm eleozooids (probably intramurally budded) apertural length: ca 0-17 mm apertural width: ca 0-13 mm Remarks. The description given above is based on examina- tion of the lectotype using an optical microscope during a visit to the MNHN in 1985. Unfortunately, the species has not been studied using SEM and therefore detailed morphologi- cal information is lacking (type specimens from the d'Orbigny Collection, regrettably and much to the detriment of scientific knowledge, are not available for loan). Semielea dichotoma differs from S. vieilbanci in having larger and more prominent autozooidal apertures which occupy a high proportion of the zooidal frontal surface, and intramurally budded eleozooids with triangular 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 British Museum (Natural History). London : BM(NH)
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