. Bulletin of the British Museum (Natural History), Geology. SYSTEMATICS OF MELICERITITID CYCLOSTOME BRYOZOANS 15 D59168 (sample), Santonian, Craie de Blois, Rue St Bar- thelemy, Tours, Taylor and Hammond Colin; D59169-72, Santonian, Craie de Saintes Fm., Voiville Mbr, les Arcivaux- Portuble, Saintes, France. USNM 2737-1 to 4, Coniacian, Villedieu (sections including duplicate acetate peels in BMNH). ZMC M40, [?Coniacian or Santonian], St Antoine du Rocher, France. ZMC Levinsen material unnumbered, Coniacian, Villedieu, Canu Colin. Un-numbered VH material from the following localities: Coniaci
. Bulletin of the British Museum (Natural History), Geology. SYSTEMATICS OF MELICERITITID CYCLOSTOME BRYOZOANS 15 D59168 (sample), Santonian, Craie de Blois, Rue St Bar- thelemy, Tours, Taylor and Hammond Colin; D59169-72, Santonian, Craie de Saintes Fm., Voiville Mbr, les Arcivaux- Portuble, Saintes, France. USNM 2737-1 to 4, Coniacian, Villedieu (sections including duplicate acetate peels in BMNH). ZMC M40, [?Coniacian or Santonian], St Antoine du Rocher, France. ZMC Levinsen material unnumbered, Coniacian, Villedieu, Canu Colin. Un-numbered VH material from the following localities: Coniacian, Tours; Coniacian, Villedieu; Coniacian, St Chris- tophe, Indre-et-Loire; Santonian, Vendome; Santonian, Merpins, Charente-Maritime; Coniacian, Joue-les-Tours, Indre-et-Loire (labelled Semimultelea irregularis). Description. Colony normally bifoliate, foliaceous (Fig. 17), with broad, folded fronds (Fig. 18), about 0-6-0-8 mm deep, anastomosing and giving rise to daughter fronds per- pendicular to their surfaces; overall shapes of complete colonies are flattened spheroids, up to at least 40 mm in diameter ( BMNH D59159); parts of some colonies, including extensive colony bases, are unilamellar with a concentrically ridged exterior wall forming the basal side. Growing edges revealing several generations of buds, often occluded by a combination of small eleozooids and kenozoo- ids. Overgrowths common, formed by eruptive budding onto Table 3 Key to the species of Elea. Note that because this key places a high reliance on eleozooids, which may not be developed in every specimen, identifications should be carefully checked against the full descriptions; furthermore, it is possible that new material will reveal the presence of eleozooids in species in which they are currently unknown. 1. Autozooidal aperture more than 0-25 mm long, bell-shaped; eleozooids unknown Elea triangularis () Autozooidal aperture less than 0-25 mm long 2 2. Eleozooids with long rostra (rostrozooids
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