On a neto Cyprinodonlid Fish from Egypt. 135 



«-c, «-^.Greci, on granitic hills in the Macin district, 15 miles from 



Braila on the Danube. 

 d. Cocosu Monastery, S.E. of Macin. 



7. 8. 9. 10. 11. 12. 13. 14. 15. 



455994 4 11 11 



3i 41 5 9 9 4-5 4-5 11 10 



3i 4i 7 10 9 5-6 4-5 12 12 



3A 4 6 9 9 4-5 4-5 12 11 



3i 4 5 9 10 4-5 4-5 11 11 



3 4 5 10 9 4-5 4-5 12 11 



2 2i 7 9 9 4-5 4-5 10 10 



1. Total length. 2. Length of tail. 3. Number of scales across body. 

 4. Number of ventral shields. 5. Number of subcaudal shields. 

 6. Number of whorls of scales on rostral " horn." 7. Width of 

 rostral shield. 8. Depth of rostral shield. 9. Number of scales 

 across vertex between supraoculars. 10, 11. Number of upper labial 

 shields (right and left). 12, 13. Upper labial shields (4th, 5th, or 

 6th) entering the eye (right and left). 14, 15. Number of scales 

 round the eye, supraocular excluded (right and left). 



The var. Montandoni may be thus defined : — 

 Naso-rostral shield not reaching the canthus rostralis nor 

 the summit of the rostral shield, which is deeper than broad ; 

 rostral " horn " with 2 to 4, usually 3, transverse series of 

 scales between the rostral shield and the apex. Ventral 

 shields 149 to 158. A more or less distinct dark blotch on 

 the lower lip, involving 5 to 7 labial shields without complete 

 interruption. Lower surface of end of tail yellow. 



This race is easily distinguished from the typical form by 

 the shape of the rostral and naso-rostral shields, the extent 

 of the dark blotch on the lower lip, and the yellow colour on 

 the tail (nearly always red in the typical form). From the 

 var. meridionalis, to which it is more closely related, the 

 higher number of ventral shields (149-158, instead of 133- 

 147) and the usually lesser development of the rostral 

 u horn " are sufficient characters to justify a Parietal separation. 



XX. — On anew Cyprinodontid Fish from Egypt. 

 By G. A. BouLENGER, F.R.S. 



Along with examples of Paratilapia multicolor^ recently 

 discovered by him, Mr. C. H. Schoeller has kindly sent me 

 several specimens of a little Cyprinodont which occurs near 



