364 Fretp Museum or Naturat History — Zoétocy, Vot. X. 
90. Microeleotris mindii sp. nov. 
Type No. 8954, F. M. N. H.; length 55 mm.; Mindi, Canal Zone, 
Panama. 
Head 3.2 to 3.5; depth 4.83 to 6.68; D. VI-I, 9; A. I, 9; scales 30 to 
32. 
Body anteriorly depressed; caudal peduncle compressed; head low, 
wider than deep, the width at preopercular margin 1.45 to 1.75 in its 
length; snout broad, 3.25 to 4 in head; eye superior, 3.7 to 4.65; inter- 
orbital very narrow, 8.65 to 12; mouth rather large, oblique; lower jaw 
strongly projecting; maxillary scarcely reaching opposite middle of eye, 
2.17 to 2.6 in head; teeth all small, pointed, in bands in the jaws; gill- 
membranes narrowly attached to the isthmus, the openings extending. 
forward to nearly under posterior margin of eye; scales large, ctenoid; 
head, predorsal region, chest and median line of abdomen naked; 7 rows 
between base of second dorsal and base of anal; origin of first dorsal 
about midway between tip of snout and base of last ray of second dorsal, 
the spines weak, reaching second dorsal; origin of second dorsal a little 
in advance of origin of anal, the rays short; caudal fin without small 
scales on base, the margin rounded; anal fin similar to second dorsal; - 
ventral fins short, failing to reach vent, inserted under base of pectorals;_ 
pectoral fins moderate, reaching past tips of ventrals, 1.13 to 1.5 in head. 
Color olivaceous; the back with 4 dark saddle-like blotches; median 
line of sides with elongate dark blotches; a small caudal spot present. 
Dorsals and caudal with indistinct dark bars or spots; anal fin with 
more or less dusky, other fins unmarked. 
We have 51 specimens of this species, ranging from 30 to 56 mm. in 
length. ‘These were taken in a brackish creek at Mindi near the Atlan- 
tic coast of the Canal Zone. 
This species differs from M. panamensis in the somewhat less strongly 
depressed body, narrower interorbital, fewer scales in the lateral series, 
one more ray each in the second dorsal and anal, and in the lighter | 
coloration. 
A specimen 55 mm. in length has been designated as the type. 
55. Hemieleotris gen. nov. 
Type Eleotris latifasciatus Meek & Hildebrand, Field Mus. Nat. Hist. 
Pub., Zodl. Ser., X, 1912, 68. 
Body elongate, compressed; head compressed, not flat above, mostly 
covered with scales, the upper surface from eyes forward naked; mouth 
moderate, oblique; lower jaw projecting; no preopercular spine; teeth 
small, in bands on the jaws, none on vomer; gill-openings extending 
a 
