332 CTPEINODONTID^. 



anal. Anal appendage of tlie male shorter than the head. Pectorals 

 small, about two-thirds of the length of the head, reaching to the 

 root of the vciitrals. Greenish brown, with six or seven longitudinal 

 dark lines on the sides, the lines apparently made up of spots for the 

 most part confluent, but here and there not so, interrupting the con- 

 tinuity of the lines. Fins immaculate. 

 Maldonado. 



12. PSEUDOXIPHOPHORUS. 



Pseudoxiphophorus, Bleek. Ichthyol. Archipel. Ind. Prodr. Ci/pr. p. 483. 

 Pceciliodes, tSteindachner, Sitzgsber. Akad. Wiss. Wien, 18(33, xlviii. 

 p. 17G. 

 Cleft of the mouth developed more horizontally than laterally; 

 bones of the mandible fii-mly united ; snout not produced, with the 

 lower jaw scarcely prominent ; both jaws with a band of small conical 

 teeth, those of the outer series being the strongest. Scales rather 

 large. Dorsal fin rather long and many-rayed. Anal below the 

 anterior part of the dorsal, not much in advance of it in the male, 

 in which it is modified into an intromittent organ. Intestinal tract 

 short. Carnivorous. 

 Central America. 



1. Pseudoxiphophorus bimaculatus. 



Xiphophorus bimaculatus, Meckel, Sitzgsber. Akad. Wiss. Wien, 1848, 



i. 3. p. 169, taf. G. ligs. 1 & 2. 

 Poeciliodes bimaculatus, Steindachner*, ibid. 1863, xhdii. p. 176, taf. 4. 



fig. 2. 



B. G. D. 14-15. A. 10-11. L. lat. 29. L. transv. 8. 



The height of the body is equal to or rather more than the length 

 of the head, which is contained from four times and a half to four 

 times and two-thirds in the total length (without caudal). Head 

 broad, the width of the interorbital space (which is flat) being one- 

 half of the length of the head ; the diameter of the eye equals the 

 length of the snout, and is one-fourth or somewhat more than one- 

 fourth of the length of the head. The length of the base of the anal 

 is two-fifths of that of the dorsal. In the male the anal is opposite 

 the origin of the dorsal, the process being nearly twice as long as the 

 head, and terminating in a small hook. Each scale with a submar- 

 ginal brown crescent. A black spot behind the upper end of the 

 gUl-opening, and a round blackish patch on the upper half of the 

 root of the caudal. 



Mexico. 

 a-c. Male (2| inches) and females (4 inches). From M. Salle's 



Collection. 

 d. Several specimens. 

 e-g. Males. Pui-chased of Mr. Frank. 

 h. Female. Cordova. Purchased of M. Parzudaki. 



* This author omits to mention that the same fish has been described from 

 specimens in the same Museum under the same specific name. 



