BB 23 — 
Massif du Brabant. Bande de Sambre et Meuse. 
Leptœna segmentum, Ang. 
Strophomena antiquata, Sow. 
— pecten , L. sp. 
— rhomboidalis, Wilck. 
Orthis biloba, L. 
— Edgelliana , Sait. 
Discina rngata, Sow. 
Annélides. 
Cornulites serpularius , Sclil. 
Anthozoaires. 
Halysites catelunarius, L. sp. 
Cœnites sp. 
Favosites gothlandica , L. 
— Hisinheri, Milne-Edw. 
Petraia bina, Sow. 
Heliolites ( Propora ) tubulatus , Sow. 
(Jbolus Davidsoni, Sait. var. trans¬ 
ver s us. 
Sl2a. Assise de Grand-Manil. Llandovery. Sl2a. Assise de Roux. 
Tarannon. 
Monograptus bohemicus, Barr. 
— galaensis ? Lapw. 
— cf. personatus, Tullb. 
priodon, Bronn. 
— proteus, Barr. 
— cf. Sedgwicki, Portl. 
— subconicus, Tornq. 
Protovirgularia dichoto ma, Mc Coy. 
Diplograptus modestus, Lapw. 
— vesiculosus ? Nich. 
Climacograptus normalis , Lapw. Climacograptus normalis, Lapw. 
(Cl. scalaris, L. sp. var.). 
Climatograptus rectangularis, Mc 
Coy. 
Dimorphograptus elongatus , Lapw. 
— Swanstoni, Lapw. . 
Monograptus gregarius, Lapw. 
— sagittarius. His. 
— leptotheca, Lapw. 
