410 CTPEINODOKTID^E. 



Mr. Loat obtained numerous specimens in Lake Menzaleh, in shallow water near the 

 shore, where they are known to the fishermen under the name of Batrich. Curiously, 

 considering how greatly the males differ from the females in shape and coloration, 

 the fishermen do not use distinctive names for the two sexes, thus showing sounder 

 judgment than the earlier systematists who had to deal with these fishes. 



List of specimens examined : — 



4 Lake Menzaleh.— Loat, 7-12.5.99. 



94 Ghet-el-Nassara, near L. Menzaleh.— Loat, 29.4-20.5.99. 



5 Gramel, near L. Menzaleh. — Loat, 28.6.99. 



9 Near Alexandria, in fresh water. — Capt. Flower, 6.7.06. 



5 Lower Egypt.— Dr. J. C. Mitchell, 1895. 



23 L. Temsah, Isthmus of Suez.— Sir R. Owen, 1871. 



5 Susa, Tunisia. — Fraser, 1846. 



7 Algeria. — Sir Lambert Playfair, 1868. 



2 Hot springs of Sidi Ohkbar, Algerian Sahara. — Canon Tristram, 1859. 



7 Wed Hir, Algerian Sahara. — Jus, 1884. 



7 Biskra, Algeria. — Paris Museum. (Types of* C. doliatus.) 



7 Biskra, Algeria. — Paris Museum. (Types of C. cyanogaster.) 



1 Sardinia. — Old Collection. 



35 South of Zara, Dalmatia. — D. Gavin, 1899. 



1 Albistan, Asia Minor.— C. G. Danford, 1879. 



10 Cyprus.— H. Rolle, 1895. 



As in all Cyprinodonts, the eggs are large ; in this species they measure 1J milli- 

 metres in diameter. Dr. C. Lepori * has observed that these eggs bear thread-like 

 filaments, as processes of the periphery of the gelatinous capsule, such as had been 

 previously described in the eggs of Scombresocidee by E. Hseckel f and have since been 

 found in Atherinidae by Syrski fide J. Brock $ and by J. A. Ryder §. The object of 

 these threads is to entangle the eggs together in masses, and to suspend them to fixed 

 objects, as has been observed by Mr. Schoeller in Haplochilus schoelleri. 



* Atti Ace. Eom. (3) ix. 1881, p. 481, 1 pi. 



f Miiller's Arch. Anat. Phys. 1855, p. 23, pis. iv. & v. 



t Morphol. Jahrb. iv. 1878, p. 552 (footnote). 



§ Bull. U.S. Fish Comm. iii. 1883, p. 193, fig. 



