126 TELEOSTEI: ACANTHOPTERI, — XX. 
335. E. longimane Jordan. Body moderately slender; head 
long, bluntish anteriorly, profile of snout steep and nearly straight ; 
mouth moderate, included ; maxillary to front of eye; cheeks nearly 
or quite naked ; opercles somewhat scaly, nape naked; dorsals very 
high; A. spines small. Olivaceous, with 5 dark cross-shades; a 
dark spot at base C., fins nearly plain. Head 4; depth 5. D. IX 
or X-120r13. <A. II, 8. Scales 643-7. L. 23. James R., Va. 
(Lat., longus, long; manus, hand.) 
qq. P. moderate, not reaching A. 
336. E. shumardi (Girard). Body robust; head broad and 
thick ; mouth large, scarcely inferior; cheeks, opercles and nape 
scaly; breast naked; fins all large. Dark olive, blotched with 
darker ; sides with 8 to 10 vague bars; a small black spot on front 
of spinous D.; a large one behind; fins barred; suborbital stripe 
large, black. Head 38; depth5. D.X,15. A.II, 11. Seales 
6-56-11. L. 3. Wabash R. to Ark., in larger streams. (To 
Dr. George C. Shumard.) 
ee. Premaxillaries not protractile (the skin of the middle of the lower jaw 
continuous with that of the forehead). 
p. Cranium broad between the eyes; snout conic, pig-like, projecting be- 
yond the inferior mouth; ventral line with a series of larger scales 
which fall off, leaving a naked strip; dorsal spines 13 to 15; gill 
membranes separate; scales small; vertebrae 23 + 21 = 44. (Per- 
cina ! Haldeman.) 
337. HE. caprodes Rafinesque. Loa Prercu. HoG-Frisn. 
CraAwL-a-BoTToM. Body elongate; fins rather low; cheeks and 
opercles scaly. Yellowish green with about 15 dark cross-bands, 
these usually alternating with shorter and fainter bands; a black 
spot at base of C.; fins barred. Head 4; depth 6. D. XV-15. 
A. II, 9. Lat. 1. 92.’ L..6 te.8., ‘Great Lakes to Va., Ala, aad 
Texas, abundant, the largest of the darters, and the one most 
nearly allied to the Perch and similar fishes. N. and E. occurs 
var. zebra Agassiz, with nape naked, ete.; the ordinary form is 
scaly. (kxdmpos, the wild boar ; eiSos, like.) 
pp. Cranium not broad between the eyes; mouth less inferior, the snout 
usually not projecting much beyond it. 
r. Ventral line with the median series cf scales more or less enlarged 
or (if these are fallen) with a naked strip; anal fin large; lateral 
line complete. 
s. Palatine teeth present; dorsal spines 11 to 15. 
g. Preopercle strictly entire; gill membranes scarcely united across 
isthmus. (Alvordius 2 Girard.) 
t. Cheeks and opercles wholly naked ; head large and long. 
338. E. macrocephalum Cope. Body slender; head eel-like ; 
maxillary reaching eye. Brown, back with dark quadrate spots; 
I Dim. of Perca. 2 To General Benjamin Alvord, U. 8. A. 
