206 EUG. DADAY DE DEÉS 
dato ineuns (fig. 45, 4, f), rarius cum margine posteriore an- 
gulum obsoletum, obtusum formans (fig. 45, 4). Margo posterior 
regulariter et plus minusve acutiuseulo arcuatus; in marginem 
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Fig. 45. — Æocyzicus orientalis Dad. n. sp. — a, b, © concha a latere, 1 : 5 
c-e, © conchae supra visae, 1 : 5; f, O' concha a latere, 1 : 5: g, © conchae supra 
visae, 1 :5; h,1, © concha a latere, 1 : 5; k, ©. conchae supra visae, 1 : 5; /, © con- 
cha a latere, 1 : 5; m, © © pars valvulae concharum. Reich.Oc.I, Obj. 2;n, @ con- 
chae supra visae, 1 : 5. 
ventralem aut late, aut parum ventricose rotundatum sine limite 
visibili ineuns. 
Conchae infra vel supra visae late fusiformes, latitudine 
maxima rarius fere in medio (fig. 45, c), saepissime ante medium 
sita (fig. 45, d, 6); apice anteriore aut sat producto, posteriore 
latiore (fig. 45, c, e), aut abreviato, acuto (fig. 45, d); margi- 
nibus lateralibus aut in toto late arcuatis, aut solum in parte 
anteriore latiusculo areuatis, postice declivibus (fig. 46, d, e). 
Valvulae concharum zonis incrementi 10-25, concinne aggre- 
gatim granulatis vel punctatis, intervallis pellucidis (fig. 
