- SHUMARD—NEW FOSSILS. 3891 
ll 
tata, 
monograph on the British Carb. Brachiopoda. Our shell is, 
however, much more gibbous and attains a much greater size. 
Locality—White Limestone, Guadalupe Mountains. 
Phillips, as figured by Mr. Davidson in his excellent 
B 
§. GuapALUPENSIS, n. sp. 
Shell of medium size, = longer than wide, quite gib- 
bous in full grown specimens ; hinge line less than the great- 
est width, which is binenel aha the middle of the shell; dor- 
sal valye hyd yaaa elliptical to circular, evenly ae 
exhibitin, © trice of a mesial fold; beak incarved, pas 
a little Bron the cardinal margin; ventral valve convex, 
mueh more ade than the opposite Mattohs cg eae, 
ent, roun: 
acute, incurved; area contact clovated 
aly defined ; aperture large. - length st idee 
nearly equal; ce akg aka ge with moderately dis- 
concentric , the edges of ‘whieh were probably 
mith pili n spines as in S. lineata 
compared with S. lidncta, from which 
in ig nuh more gibbous, and in the absence of 
caver sinus or mesial fold. eects will also dis- 
us, Shu 7 Acad. St. Louis, Vol 
cept a a | 
Pre Veutral valve of | Stina ny x 
Was found in sale wl towards the example of thin pei 
Sem ro 
