28 
Oppel in his work “ Die Jnraformation” separated the Inferior 
Oolite specimens which hadheen referred to T. imjoressa and gave 
them the name of T. Meriana^ they are thicker shells gener¬ 
ally widest in the middle, and taper towards the front margin, 
often giving the shell a somewhat rhomboidal form, whilst 
W. impressa is circular, the beak in W. Meriana is also much in¬ 
curved. Both T. impre88a and T. Meriana have long loops and are 
therefore "Waldheimias. I may here state that several varieties 
of W, Meriana occur in the Inferior Oolite of Dorsetshire, 
which may require varietal names, especially a small form 
which abounds near Sherborne. The true W. impressa occurs 
in France at Boulogne-sur-mer in the zone of A. Lamberti^ 
as stated by Dr. Davidson in his valuable monograph on British 
Brachiopoda. It occurs in the same zone at St. Ives, Hunting¬ 
donshire, Terebratula (Waldheimia) Bernardina is described 
by D’Orbigny in his Prodome, 1847, as follows:—“ Espece 
voisine T. pala^ mais ovale-obronde, tronquee sur la region palle- 
ale, elargie an milieu; la petite valve tres deprimee, avec un sillon 
au milieu (elle est quelquefois presque ronde.”) Numerous 
specimens referrred to this species are found in the Oxford CJay 
of Dives and Yillers, in Calvados France. As stated by Mr. 
Davidson, D’Orbigny omits T. impressa in his list of Oxfordien 
species, but gives it as a Bajocien species, this is the T. Meriana 
Oppel. But Oppel in his list of fossils found in the Oxford 
Clay Die Juraformation,” page 608) gives both Terebratula 
(Waldheimia) impressa and Terebratula (Waldheimia) Bernar- 
di)ia, he states that the latter resembles an elongated 
T. impressa. The question remains whether D’Orbigny 
included the true Oxfordien species, T. (W.) impressa, imdei 
his T. Bernardina ; if so, we must refer the species to 
Oppel, thus T. Bernardina Oppel=T. Bernardina D’Orb, 
The specimens which I have referred to W. Bernardina occur 
in England in a lower zone of the Oxford clay, being associated 
with A, Duncani, A. Athleta, Whether W. Bernardina 
should be regarded as a distinct species or only as a variety of 
W. impressa I will not attempt to decide, further than I would 
remark that W. impressa bears the same relation to IF”. 
Bernardina as the Inferior Oolite Species IF. Meriana does to 
