from Sinai and Egypt. 247 



Distribution. — Middle Cenomanian : Algeria (Bou Saada). Cre- 

 taceous Marls : lower half of Jebel el Araba, Wadi el Araba, 

 south-west of Camp 23. L 4120, Collected by the late T. Barron, 

 Esq. Jebel uni Raiyig, north-eastern Sinai. L 3481. Collected by 

 Dr. W. F. Hume. 



4. NuoLEOLiTES MESLEi (Peron & Gauthier), 1881. 



Echinobrisstis meslei, Peron & Gauthier, 1881 : E'ch. foss. Alger., fasc. 7, p. 157, 

 pi. XTi, figs. 7-12. 



JDistrihution. — East end of Abu Eoash village. I 3791. Collected 

 by H. J. L. Beadnell, Esq. Fragment from the same locality. 

 I 3796. Collected by H. J. L. Beadnell, Esq. 



This collection of 18 specimens of a large Nucleolites includes two 

 types ; the common type agrees in all respects with the above 

 species except that it is a little lower, as shown by the following 

 table : — 



Some of the specimens (as number a in the above table) are 

 somewhat longer and more pointed at the posterior end ; but this 

 seems to rae due to the fold on the posterior margin being produced 

 backward instead of downward. 



Order STERNATA. 



Family SPATANGID^. 



Section Prymnadetinse. 



HEMIASTEE, Desor, 1847. 

 1. Hemiaster pseudo-fourneli, Peron & Gauthier, 1878. 

 E'ch, foss. Alger., fasc. 4 (1878), p. 113, pi. iv, figs. 5-8. 



Distribution. — Cenomanian : Algeria, Batna, etc. ; southern side of 

 Jebel Ejjibi, near Ain el Hudhera, Sinai. L 3480. Collected by 

 Dr. W. F. Hume. Cephalopod bed, head of Wadi Ethal. L 3918. 

 Collected by the late T. Barron, Esq. 

 Dimensions : 



Peron & Gauthier's 

 L 3480. (figui'ed specimen). 



Length 31-5 mm 33 mm. 



Width 30-5 mm ,. 31mm. 



Height 22mm. 23mm. 



2. Hemiaster fourneli, Deshayes. 

 For synonymy, etc., see Fourtau : Eevision, p. 631. 

 Coptosoma abbatei beds, Abu Roash. Three broken specimens. 

 Collected by Mr. Beadnell (I 3787). 



