450 GEOGRAPHICAL ZOOLOGY. [part iv. 



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

 in various parts of the world. 



Family 73.— CYPEINOD OOTIDS. (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 ; Teliia 

 (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 ; Fundulus (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; 

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

 licnesia (4 sp.), Louisiana to Mexico ; Platypcecihis (1 sp.), 

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

 Uruguay; Lepistcs (1 sp.), Barbadoes. 



Family 74— HETEROPYGII. (2 Genera, 2 Species.) 



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

 scales." 



Distribution. — Fresh waters of the United States. 



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

 tucky ; while Chologastes (1 sp.), which only differs from it in 

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



