FAMILY XI. PCECILIID^E. 153 



145. Poecilia sphenops Cuvier & Valenciennes. 



Pcecilia sphenops Cuvier & Valenciennes, Hist. Nat. Poiss., xvm, 



130, 1836; Vera Cruz: Garman, Memoirs Mus. Comp. Zool., 



1895, 59, pi. iv, fig. 13; Mexico and Central America: Jordan 



& Evermann, Bull. 47, U. S. Nat. Mus., 1896, 694. 



Molienesia fasciata Muller & Troschel, Mon. Akad. Wiss. Berlin, 



1844, 36; Mexico. 

 Gambusia modesta Troschel, Muller's Reise in Mexico, in, 639, 



1865 ; Mexico. 



Gambusia plumbea Troschel, ibid., in., 640, 1865; Mexico. 

 Pcecilia mexicana Steindachner, Sitzber. Akad. Wiss. Wien., 1863, 

 178; southern Mexico: Jordan & Evermann, Bull. 47, U. S. Nat. 

 Mus., 1896, 692: B. A. Bean, Proc. U. S. Nat. Mus., 1898; 

 Santa Maria, Vera Cruz. 



Pcecilia limantouri Jordan & Snyder, Bull. U. S. Fish Comm., 

 1900, 129, fig. 10; Rio Tamesin, Tampico: Jordan & Ever- 

 mann, Bull. 47, U. S. Nat. Mus., 1900, 3153: Meek, Field Col. 

 Mus. Pub. 65, 1902, 106; Puente de Ixtla; Balsas; La Antigua: 

 Fowler, Proc. Acad. Nat. Sci. Phila., 1903, 320; Victoria, Ta- 

 maulipas. 



Lowland streams of eastern Mexico, from Monterey to the 

 Isthmus of Tehuantepec, and in the Rio Balsas, Rio Tehuantepec 

 and Rio San Geronimo. (Monterey; San Juan; Linares; Garza 

 Valdez; La Cruz; Santa Engracia; Victoria; Forlon; Valles; Rascon; 

 Jojutla; Vera Cruz; Boca del Rio; Otopa; El Hule; Obispo; Perez; 

 S.an Juan Evangelista; San Geronimo; Tehuantepec.) 



FlG. 49. PCECILIA SPHENOPS Cuvier & Valenciennes. 

 No. 6165 (Pcecilia limantouri J. & S.), Leland Stanford Jr. University. 



Head 3^ to, 4; depth 33^; D. 9 or 10; A. 8 or 9; scales 9 or 10- 

 25 to 27. Body robust, compressed; back not much elevated ; head 

 moderate; interorbital area nearly flat, i^ in head; snout 3^ in head; 

 eye 3 to 3X1 teeth in 2 series in both jaws, the outer series a single 



