Belemnites lateralis, Phil.
Nautilus pseudo-elegans, D' Orb.
Ammonites bidichotomus, Leym.
— Decheni, Rom. (A. bidichotomus junior).
— noricus, Schloth.
— Gervilianus, D' Orb.
—, sp.
Ancyloceras grande, Sow. sp.
— (Crioceras) Emmerici, Lev.
— (Crioceras) Duvali, Lev.
Pleurotomaria Fittoni, Rom.
Ostrea macroptera, Sow.
Exogyra sinuata, Sow. (A. aquila, Brong.).
Pecten cinctus, Sow., very abundant.
— orbicularis, Sow.
— muricatus, Goldf.
— atavus, Rom.
Inoceramus lobatus, Munst.
Perna Mulleti, Desh.
Gervillia anceps ? Desh.
Avicula Cornueliana, D' Orb. (A. macroptera, Rom.).
—. sp.
Pinna gracilis, Phil. (P. rugosa, Rom.).
Lima moreana, ? D' Orb.
—, sp.
Modiola reversa, Sow.
Arca exaltata, Nilss.
— glabra, Sow.
— concentrica, Rom.
Pectunculus umbonatus, Sow. (P. decussatus, Rom.).
Cardium, sp.
Isocardia neocomiensis, D' Orb. (Ceromya neocomiensis, Ag.).
Trigonia pulchella, ? Reuss.
— divaricata, D' Orb.
— rudis, Park.
Thetis Sowerbyi, Rom., var. major, Sow.
Thetis Sowerbyi, var. minor, Sow.
Thracia Phillipsi, Rom.
— elongata, Rom.
Panopaea Romeri, Gein.
— plicata, Sow.
— mandibula, Sow.
Pholadomya elongata, Munst. (P. gigantea, Sow.).
— alternans, Rom.
— designata, Goldf.
— nodulifera, Munst.
Anatina Cornueliana, ? D' Orb.
Waldheimia celtica, Mor. (Ter. longa, Rom.).
Terebratula praelonga, Sow. (T. biplicata, var. acuta, Von Buch).
Rhynchonella multiformis, Rom.
Lingula truncata, Sow. = L. Meyeri, Dunker.
Diadema, sp. (very rare).
Holaster laevis, Rom.
Toxaster complanatus, Ag. (one specimen).
Heteropora ramosa, Dunk. & Koch.
Ceriopora (Alveolites) tuberosa, Rom. Eschara, sp.
4. Hanover. — Passing over a considerable area in which no exposure of Neocomian beds is found (with the exception of a clay near Minden, abounding with Thracia Phillipsi, Rom.), we come into Hanover, the native country of M. Fr. Ad. Romer, and that in which these strata were most fully described and illustrated by him, under the names of " Hilsthon " and "Hilsconglomerat "*. More recently, the strata of this country have been mapped by his brother, M. Hermann Romer.
The Neocomian beds of Hanover are chiefly exposed on the flanks of the various hill-chains of the country (which rise above great plains covered with drift), as the Deister, the Lindener Berg, the Osterwald, the Suntel, and especially the Hils, from which latter the beds take the name by which they are most generally known in Northern Germany.
Throughout Hanover, the Neocomian is usually represented by thick beds of blue clay (Hilsthon) which, however, locally pass into oolitic ironstones and sandstones. The upper part of these clays
- The name " Hilsconglomerat " was applied to a number of strata of somewhat different ages, viz. : — 1. the Greensand of Essen or the Tourtia (of Upper
Greensand age ?) ; 2. the ironstones of Steinlahde. the Osterwalde, &c. (Middle Neocomian) ; 3. the Lower Neocomian Limestones &c. of Brunswick.
