60 CONTRIBUTIONS 
Observations. The genus Gratelupia was established in 
1827, by M. Charles des Moulins, president of the Linnean 
Society of Bourdeaux, and published in the second volume 
of the Transactions of the Society. The name of his dis- 
tinguished friend, Dr Grateloup, was given to the genus, 
a single species of which only has heretofore been made 
known, the G@. donaciformis. I have great pleasure in now 
having it in my power to dedicate a new species to the 
founder of the genus, who has cultivated, with such emi- 
nent success, the rich formations of the south of France, 
and added so much to the labours of Basterot. 
It is not quite so transverse as the donaciformis, nor is 
the basal margin quite so straight—it differs also in being 
gibbous over the umbones and in having comparatively a 
small excavation of the palleal impression, which, in the 
other species, is large, extending two-thirds of the distance 
between the two great muscular impressions. The small 
additional teeth which distinguish this genus from the 
Cytherea, are not in this species so perfectly defined as in 
the donaciformis. They are more irregularly cut up into 
crenulations. M. des Moulins places his genus between 
the genera Lucina and Donaz. ‘The structure of its teeth 
would induce me to think it ought to be placed before the 
genus Cytherea. The lateral tooth is like that of the Cy- 
therea, but more removed. . 
The genus Gratelupia has been observed, heretofore, only 
at Bourdeaux, where a single species has been observed by 
the founder of the genus in the Miocene. 
