3154 
Bulletin ^ 7 , United States National Museum. 
ventral outline at base of ventrals. Head pointed, interorbital space 
wide and Hat; eye large, nearer tip of snout than to posterior edge of 
opercle by a distance equal to diameter of juipil; mouth verj' oblique, 
its width eipial to 2 times diameter of pupil; premaxillaries protractile; 
distal end of maxillary visible; lower jaw projecting; teeth in two 
series on each jaw, the outer series in a single row, small, pointed, 
loosely attached ; second series scarcely discernible, in bauds; gill-open- 
ings extending above base of i>ectoral a distance equal to ^ diameter 
of orbit; gill-rakers on first arch 20, small and slender; alimentary 
canal very long and slender. Body and entire head, excej)t preorbital 
area, lii>s, and lower jaw, covered with large scales; 3 rows of scales 
on base of caudal; small scales extending on inter-radial membranes of 
caudal, a distance l)eyoud the basal scales about equal to diameter of 
the eye. Dorsal fin inserted halfway between base of caudal and ante- 
rior edge of pnpil, its base contained 6j times in length of head and body, 
its height 5|, the last rays a little higher than the first; anal advanced 
close to base of ventrals, the first and second rays short, closely attached 
to the next, third ray greatly enlarged and lengthened, a loosely attached 
ovate, fieshy pad near its tip; fourth and fifth rays slender, as long as 
thirds tijrs of third and fifth rays bent toward that of the fourth; sixth 
to eighth raj’S about ^ as long as third ; caudal rounded, its length con- 
tained 3^ times in head and body; pectoral rounded, the length con- 
tained IJ times in head; A'entrals pointed, extending to middle of longest 
anal ray. Color in alcohol, light yellowish olive, much lighter on breast 
and A'entral i)art of head; posterior edges of scales dark; lower jaw, pre- 
orbital area, upper i>art of head, and a narrow, median dorsal strii'e, 
dark; basal ^ of dorsal fin black, distal part of fin white, the boundary 
between the white and black more definite on the anterior than on i)os- 
terior part of fin; basal J cf caudal dusky, distal part without color. 
Other male cxami>les have only a few small dark spots on dorsal and 
caudal. The females have the body more elongate than the males, the 
depth of the caudal peduncle 5| in length. The dorsal fin is inserted in 
advance of the anal, its origin above anal opening, the first rays highest. 
The ventrals extend to the posterior edge of the A’ent, bnt do not reach 
the anal. The dorsal and caudal have a little dusky coloring. 
Lack of material for comparison proA'ents our commenting on the ])rob- 
able affinities between this and other species of the genus. (.Iordan A. 
Snyder.) 
Known only from Bio Tamesoe, near Tampico, Tamaulipas, Mexico, 
Avhere .several specimens were collected January 12, 189H, by Mr. Snyder. 
(Type, a female. No. G165, L. S. Jr. Univ. Mus.) 
(Named lor .lose Limantour, the accomplished minister of the “Haci- 
enda” in Mexico.) 
J‘a‘cilia limantouri, Jordan .Sc Sxvder, ISiill. U. S. Fi«b Coin. 1899 (19o0), 120, Rio Tamesoe, 
near Tampico, Mexico. 
Page 702. Before Xiphophorus gitniheri, Jordan A Evermaun, insert; 
104:j (a). XIPHOPIIOUrs MOXTKZLM.K, Jord.an & Suyder. 
Head 41; dejitliJ; dci>th of caudal peduncle 4J ; eye 3J in head; snout 
3i^; interorbital space 2; height of dorsal 34 in length; anal 5; length of 
