THE CYPRINODONTS. 63 



D. 7-8 ; A. 8-9 ; V. 5 ; LI. 26-28 ; Ltr. 8. 



Depth of body two sevenths and length of head nearly one fourth of the 

 length to the base of the caudal. Males rather more slender. Eye longer 

 than snout, not quite one third of head, three fifths of interorbital space. 

 Forehead flat. Dortsal origin somewhat nearer to end of snout than to end 

 of caudal, opposite first ray of anal on females. Anal of male advanced, 

 between the ventrals, which are elongate ; anal process as long as the head, 

 without hooks. Caudal large, rather longer than the head, obtusely rounded. 

 Free portion of tail somewhat elongate, base of anal being one third of its 

 distance from the caudal. Ventrals reaching the anal. Pectorals as long as 

 the head, not reaching the ventrals. 



Female yellowish olive, scales with a narrow blackish edge, belly silvery, 

 trunk above the belly blackish. 



Male with two brown streaks along the trunk, sometimes confluent into 

 a band, a brown streak along the middle of the side of tlie tail, a round 

 black spot behind the shoulder, another at the commencement of the 

 caudal streak, and a third at the root of the caudal. One or two of these 

 spots may be absent, 



Trinidad ; Venezuela. 



The male from Venezuela differs in color from those of Trinidad : it has 

 large silvery patches between the brown streaks and a large ovate black 

 spot in the middle of the side of the tail. 



(Glinther). 



The following is the original description : " Griingelblich mit einem 

 schwarzen Netzwerk, dessen Maschen den Randern der Schuppen parallel 

 hegen, am Bauche silbrig. Schuppen in 7 Langs- und in 27 Querreihen ; 

 obwohl einige derselben durchbohrt erscheinen, ist doch keine deutliche 

 Seitenlinie zu sehen. Ganze Lange 39, Hohe 9, Lange des Kopfes 7 Mil- 

 limeter. D. 8 ; A, 10. Caracas ; in dem Guayre-Flusse von GoUner 



gesammelt." 



Poecilia Gillii 



Plate V. fig. 2, ieeth. 



Xiphophorus Gillii Kn. & St., 1866, Abh. Ak. Wien, X (1861), Ext. p. 25, pi. 4, fig. 1, — Mb. Ak. Wiss. 

 Miinch. 



Pmcilia Gillii Gth., 1868, Tr. Zool. Soc. Lond., VI, 4.85 ; Eig., 1891, P. U. S. Mus., XIV, 65. 



Pcecilia elongata Gtli., 1866, Cat., VI, 342,-1868, Tr. Zool. Soc. Lond., VI, 484, pi. 85, fig. 2; St., 

 1876, Sb. Ak. Wien, LXXIV, Ext. p. 19; Jor. & G., 1883, P. U. S. Mus., V, 023,-1890, P. XJ. S. Mus.. 

 XII, 180; Jor., 1886, P. U. S. Mus., VIII, 368. 



Pfzcilia Boucardii Steind., 1876, Sb. Ak. Wien, LXXVI, Ext. p. 8, pi. 3, fig. 2-3. 



Pxcilia chisot/eiisis Gth., 1866, Cat., VI, 342; Eig., 1893, P. U. S. Mus., XVI, 57. 



