252 



Prof. J. W. Gregory — Fossil Echinoidea 



3. EcHiNOLAMPAs FEAAsi, (le Loiiol, 1880. 



Op. cit., p. 92, pi. V, fig. 1 ; 1883, op. cit., p. 22, pi. vi. 



One specimen with specimens of JEcldnolampas afrlcaniis, from 

 the top of the Nummulite beds, Wadi Khadahid, Sinai. L 3582. 

 Collected by the late T. Barron, Esq. 



Dimensions : 



Fide de Loriol. 

 88 mm. (?) 92 mm. 



Lem^th 



Width 



Height 



Eatio of leugth to width 

 Ratio of length to height 



85 mm. 

 53 mm. 

 100 : 96 (?) 

 100 : 60 (?) 



100 

 100 



84 

 67 



4. EOHINOLAMPAS FEIRANENSIS, n.Sp. (PI. XI, FlgS. 11-14.) 



From the locality of Wadi Feiran. 



Diagnosis. — Test : the front half is subcircular, but the anterior 

 margin is somewhat flattened ; the two sides are well rounded ; the 

 posterior end is produced to a blunt rostrum. Hence the slope is 

 subpentagonal. The margin of the actinal surface is flat, but the 

 peristome is in the middle of a broad, fairly deep depression. The 

 upper surface is high ; the apex is very excentric anteriorly, and the 

 fiont slopes steeply forward. 



Ambulacra : the petals are long, and reach nearly to the margin 

 of the test. The petals are well developed, and the interporiferous 

 areas are tumid. 



Periproct on the rostrum. 



Dimensions : 



Distribution. — Limestone, probably Miocene : south of Wadi 

 Feiran, Sinai. L 4204. Collected by the late T. Barron, Esq. 



