458 MEMOIRS OF THE CARNEGIE MUSEUM 



Female with wavy longitudinal dark stripes on the flanks between the rows 

 of scales, merging into brown-edged scales on the sides above the anal, sometimes a 

 row of spots between the stripes, one on the margin of each scale; lower surfaces 

 colorless; back dark brown; scales above the pectoral, between the two lower stripes, 

 silvery white. 



Male with a silvery band from the eye to the caudal, where it is bent upward, 

 bordered above and below on the sides by black stripes, also bent up and confluent, 

 but faint on the caudal; belly colorless; scales of the back margined with dark, 

 those along the lower side of the caudal peduncle with fainter margins. 



Fins unspotted in both sexes. 



305. Acanthophacelus reticulatus (Peters). (Plate LXV, figs. 1-3.) 



Poecilia reticulata Peters, MB. Akad. Wiss. Berlin, 1859, 412 (Caracas). — Garman, 



"Cyprinodonts," in Mem. Mus. Comp. Zool., XIX, 1895, 62 (copied).— 



Steindachner and von Bayern, Denkschr. Akad. Wiss. Wien, LXXII, 1902, 



145 (Cartagena). 

 Girardinus reticulatus Gunther, Catalogue, VI, 1866, 352 (Caracas; Brazil). — 



Eigenmann, Proc. U. S. Nat. Mus., XIV, 1891, 65. 

 Acanthophacelus reticulatus Eigenmann, Proc. U. S. Nat. Mus., XXXII, 1907, 426, 



fig. 1; Ann. Carnegie Mus., VI, 1909, 51 (Georgetown trenches). — Eigenmann, 



Repts. Princeton Univ. Exp. Patagonia, III, 1910, 458. 

 Girardinus guppii Gunther, Catalogue, VI, 1866, 353 (Trinidad; Venezuela). — 



Regan, Proc. Zool. Soc. London, 1906, 390, pi. 22, figs. 1, la (Trinidad). 

 Poecilia branneri Eigenmann, Ann. N. Y. Acad. Sci., VII, 1894, 629 (Para). 



One hundred fifty-eight specimens, 15-50 mm. Georgetown trenches. (C. M. 

 Cat. Nos. U29a-d, males; 1430a-z, females; I. U. Cat. No. 12072.) 



Several thousand specimens, largest male 25 mm.; largest female 48 mm. 

 Barbados. (C. M. Cat. No. 1432; I. U. Cat. No. 12073-74.) 



Two specimens. Creek in Aruka River. (C. M. Cat. No. 1431.) 



Head 3.75; depth 3.75-4; D. 7; A. 10; eye 3 in the head, 2 in the inter- 

 orbital; scales 27 or 28. 



Female very similar to that of Pwcilia vivipara, but without a lateral spot and 

 without silvery and dark cross-shades; sides reticulate. 



Males very variable, those from Georgetown with one or two black spots. 



The males from Barbados show the greatest variability in color. Some are 

 uniform, while in others the chromatophores are concentrated into longitudinal or 

 transverse bands, and in others the bands or several bands are concentrated into 



