47 



T. globulina, Dav. Posidonomya Bronni, VoU%. 

 T. Lycetti, Bav. (Posidonia Bronnii, Miinst.) 



T. numismalis, Ziet. Plicatula spinosa, Sow. 



Spirifer Miinsteri, Dav. Ostrea (Gryphoea) ocreata, Desl. 



Ilminsterensis, Bav. Area inoequivalvis, Gold/. 



Leptcena Moorei, Bav. Cuculloea Miinsteri, Ziet. 



Kasiana, Bouch. Nucula inflexa, Querist. 



granulosa, Bav. ovum, Sow. 



Inoceramus dubius, Sow. Fucoides Bollensis (Chondrites) 



Mytilus gryphoides, Schloth. 



Monotis Bubstriata, Goldf. Algoe, several species undetermined 



Coprolites, Lignite, and Driftwood. 



It will be thus seen that the cephalopodous swimming molluscs were 

 well represented. Predacious in their habits, they have congregated in 

 pursuit of the smaller Crustacea. My list includes the keeled osselet of a 

 BelemnoRepia, and well-preserved inkbags, the pigment therein not 

 deficient in richness of tone, and of a quality worthy a place in the 

 artist's colour box. These remains on very questionable grounds have 

 been attributed to Acanthoteuthis, an apocryphal genus of Miinster. In 

 general the fossils are but indifierently preserved, the Testacea have 

 merely left their impress in the clays ; but the shell more often remains in 

 the arenaceous strata ; the cause of this has been already briefly touched 

 on and suggested. 



The Ammonites are nuocerous in some beds, almost absent from others, 

 they lie chiefly in the underpart of the Leptcena bed, and mostly belong to 

 the section Falciferi. Two or three specimens of A. lineatus belong to the 

 Limestones. On the whole there is a paucity of Belemnites, a genus so 

 plentiful in the under stage, when found here individuals are but of 

 diminutive size, and located towards the basement bed. 



The very few Gasteropods are scarce, delicately sculptured, and almost 

 confined to the mottled clays under the Leptcena bed. The Conchifera are 

 small in size, the largest species is Inoceramus duhius, a fragile shell 

 ranging throughout, and characteristic of the limestone and shales of the 

 zone.* The Brachiopoda are also of small dimensions, they prevail mostly 

 in the Leptcena bed. Terelrat. numismalis is scarce; the two specimens 

 I found have the marginal line rather less cm^ed than the shell figured in 

 Davidson (Brach. p. 5. fig. 7). Mine, perhaps, maybe younger than that 

 figured in his monograph. 



* So much so that some geologists have suggested the propriety of designating the strata 

 through which it ranges, the Txoceramus Zone. It is eviaent,' that if M. gryphoides is 

 distinct from /. dubius, the expediency of the proposed appellation becomes sensibly 

 weakened. 



