. Bulletin of the Natural Histort Museum. Geology series. 100 SMITH Fig. 9 Camera lucida drawings of plating in Adelopneustes emsti sp. nov. from Casas de Oraien (Navarra); BMNH EE6134. a, apical surface; b. oral surface; c, adapical ambulacrum; d, apical disc; e, subambital ambulacrum. Scale bars; a, b = 2 mm; c-e = 1 mm. Genus ADfiLOPA^Et/Sr^SGauthier, 1889 Diagnosis. Conulids with pyrinoid ambulacral plating orally and simple plating aborally. Peristome subcircular to weakly elliptical. Adelopneustes emsti Smith & Gallemi, sp. nov. PI. 2, figs 5-8; Fig. 9 Diagnosis. Test ova
. Bulletin of the Natural Histort Museum. Geology series. 100 SMITH Fig. 9 Camera lucida drawings of plating in Adelopneustes emsti sp. nov. from Casas de Oraien (Navarra); BMNH EE6134. a, apical surface; b. oral surface; c, adapical ambulacrum; d, apical disc; e, subambital ambulacrum. Scale bars; a, b = 2 mm; c-e = 1 mm. Genus ADfiLOPA^Et/Sr^SGauthier, 1889 Diagnosis. Conulids with pyrinoid ambulacral plating orally and simple plating aborally. Peristome subcircular to weakly elliptical. Adelopneustes emsti Smith & Gallemi, sp. nov. PI. 2, figs 5-8; Fig. 9 Diagnosis. Test ovate in outline, slightly pointed to rear; 26 mm in length, slightly narrower than long; low-domal in profile, with test height mm. Apical disc tetrabasal with large gonopores sur- rounded by rims (female character only?); subcentral on genital plates. Ambulacral pores very small and rudimentary, almost impos- sible to see even under magnification; double adapically. Ambulacral plating apparently simple aborally; plating adorally not visible. Peristome oblique (crushed in the only specimen known), elongate towards anterior left. Lower surface strongly rounded. Periproct elongate and pointed both adorally and adapically, visible from beneath and posteriorly; as large as mouth. Occurrence. Upper Thanetian, P. pseudomenardii Zone, Casas de Oraien, Larumbe, Navarra province, Spain. Types. Holotype, BMNH EE6134. Remarks. Differs from A', boehmi (Neitsch) in having a more depressed profile and larger gonopores surrounded by a raised platform. Differs from N. montainvillensis (Sorignet) in having an oblique rather than circular peristome. Differs from both these species and from all others assigned to this genus in having rudimen- tary aboral pores. Order CASSIDULOIDA Claus. 1880 Diagnosis. Peristome small, lacking buccal notches; interambulacra undifferentiated. Ambulacral pores differentiated into aboral petals and oral phyllodes, though occasionally rudimen- tary throughout. Fam
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