ANIMALS. 179 
JANEIA PHILLIPSIANA, King. Plate XVI, fig. 8. 
MAGNESIAN LIMESTONE Souemya, resembling 8S. primeva, King. London Geological 
Journal, vol. i, p. 10, 1846. 
Sotemya Puiniipstana, King. Catalogue, p. 11, 1848. 
SoLeNIMYA NoRMALIS, Howse. Trans. T. N. F. C., vol. 1, p. 244, 1848. 
Diagnosis.—Valves compressed; marked with a few rather distant, slightly raised 
bands radiating from the umbones towards the posterio-ventral margin; with the 
posterior border of the anterior adductor muscular impressions corresponding with a 
line drawn vertically from the umbone to the ventral margin.” 
This is a more compressed species than Janeia hiarmica; and it is further dis- 
tinguished by being marked externally with flat, slightly raised, spreading bands, 
rather distant from each other. It has the posterior border of the anterior adductor 
muscular impressions perpendicular (vide Pl. XVI, fig. 8), which is different to what 
prevails in Janeia primeva, and Solemya Mediterranea, in which this part is oblique. 
Janeia Phlillipsiana is a rare species in the Shell-limestone of Humbleton Quarry. 
Family CaRnvitipa (Les Cardites), Cuvier. 
The present group embraces Cardita, Carditamera, and some other existing genera ; 
also Pleurophorus, and it is suspected Cardiomorpha,;as well-as a few more extinct co- 
ordinate groups. 
Genus Cardiomorpha, De Koninck. 
Diagnosis—* Shell equivalved : inequilateral: thin: generally oblique or trans- 
versely elongated. Hinge linear; without teeth. Cardinal plates smooth ; prolonged 
from the umbones to the extremity of the cardinal margin. Jzgament linear; external. 
Umbones recurved. Muscular impressions two, joined by a simple pallial line.” (De 
Koninck.’*) 
Type, Cardiomorpha elongata, De Koninck. 
This genus, although edentulous, appears to be a member of Carditide ; inasmuch 
as it possesses the muscular impressions, cartilage fulcra, and transversely elongated 
form characteristic of the family. It often resembles Modiola; but it differs therefrom 
in having an external cartilage, which, together with an edentulous hinge, and an entire 
pallial line, appear to be its chief distinctive characters. 
' Named in commemoration of Professor Phillips being the first discoverer of a fossil Solemyidia— 
the carboniferous Janeia primeva. 
2 King, Catalogue, p. 11. 
* Description des Animaux fossiles qui se trouvent dans le terrain carbonifere de Belgique, p. 101. 
“Testa zquivalvis, ineequilatera, tenuis, plerumque oblique vel transversim elongata. Cardo linearis, eden- 
tulus. Lamina cardinalis glabra; ab umbonibus ad extremitatem marginis cardinalis producta. Ligamentum 
lineare, externum. Umbones recurvi. Impressiones muscularis due, impressione palleali simplici conjuncte.”’ 
