450 GEOGRAPHICAL ZOOLOGY. [PART iv. 



but a fe.w species of Belone and Hemiramphus are found in rivers 

 in various parts of the world. 



FAMILY 73. CYPKINODONTID^E. (20 Genera, 106'Species.) 



" Fresh-water fishes, covered with scales, the sexes frequently 

 differing, mostly viviparous." 



DISTRIBUTION. Southern Europe, Asia, Africa, and North 

 America, but most abundant in Tropical America. 



The distribution of the genera is as follows : 

 Cyprinodon (11 sp.), Italy, North Africa and Western Asia to 

 Persia, also North America from Texas to New York ; Fitzroya 

 (1 sp.), Montevideo ; Characodon (1 sp.), Central America ; Tellia 

 (1 sp.), Alpine pools of the Atlas : Limnurgus (1 sp.), Mexican 

 plateau; Lucania (1 sp.), Texas; Haplochilus (18 sp.), India, 

 Java, Japan, Tropical Africa, Madagascar, and the Seychelle 

 Islands, Carolina to Brazil, Jamaica ; Fundidus (17 sp.), North 

 and Central America and Ecuador, Spain, and East Africa ; 

 Rivulus (3 sp.), Tropical America, Cuba, and Trinidad ; Orestias 

 (6 sp.), Lake Titacaca, Andes ; Jenynsia, (1 sp.), Eio Plata ; Pseu- 

 doxiphophorus (2 sp.), Central America ; Belonesox (1 sp.), Cen- 

 tral America; Gambusia (8 sp.), Antilles, Central America, 

 ana Texas ; Anableps (3 sp.), Central and Equatorial America ; 

 Pwcilia (16 sp.), Antilles, Central and South America ; Mol- 

 lienesia (4 sp.), Louisiana to Mexico; Platypcecilus (1 sp.), 

 Mexico; Girardinus (10 sp.), Antilles and South Carolina to 

 Uruguay; Lepistes (1 sp.), Barbadoes. 



FAMILY 74. HETEKOPYGII. (2 Genera, 2 Species.) 



" Fresh-water fishes, with posterior dorsal fin, and very small 

 scales." 



DISTRIBUTION. Fresh waters of t%6';United States. 



Amblyopsis (1 sp.) is a blind fish found in the caverns of Ken- 

 tucky ; while Chologastes (I sp.), which only differs from it in 

 having perfect eyes, is found in ditches in South Carolina. 



