Article II.—Descripfio)/ of Xeiv [llinois Fishes. By S.

Forbes.

LePOMIS GARMANI. 11. sp.

.4 sniifish of tlie Xeiiotis sjroup. of average proportions,

rather thin in front, the dorsal outline before the fin well arched,

with a decided depression at the nape. Length 4 inches, depih

2.25 ill length. Color dark, with a purplish tint; sides striped

with rows of bronze blotches, one to each scale, about seven

rows below the lateral line. Sides of the head in alcoholic

specimens with an appearance of irregular lines. Opercular

flap large, about two-thirds the length of the eye. bordered

above and below, but not posteriori}^ with pale. Head 2.75 to

2.9 in length: nose 3.9 to 4.25: interorbital space slightly

greater than length of eye.—3.4 to 3.75 in head. Mouth nor-

mal, moderate; rudimentary maxillary bone minute; upper jaw

below the mi<ldle of the pu])il; maxillary 2.85 to 3.1 in head,

scarcely reaching the front of the pupil; lower jaw 2 to 2.4;

teeth on vomer, not on palatines. Eye large, circular, 3.6 to 4.

(^lieeks with five rows of large scales; opercles with about six

longitudinal rows. Uill rakers very short and few— eight on

the lower part of the arch, their length about equal to the

diameter of the arch. Dorsal fin of moderate height,— X—
10 to 11. the longest spine 2 to 2.3 in head; length of spinous

dorsal 2.9 to 3.25 in body: of the soft dorsal 4,8 to 6.3. Anal

rn - 8 to 10. its height 4.7 to 5.7 in body, its length 4.2 to 5.

IVctoral rather long, reaching anal; ventrals surpassing the

vent. Lateral line high-arched, 34 to 41, longitudinal rows 5

to () and 13 to 15; 17 to 20 scales before dorsal.

This well-marked little sunfish has been obtained l)y us

only in the Wabash Valley, from Little Fox River at Phillips-

town, and from the Wabash River and Drew ])ond at Carmi.

Described from 15 specimens.

U



13fi TU'ntoix Sfdfc Ldhoniiorif of Nafitnil Ilisforif.

OXYGENEUM <z:eil. IIOV.

Body loii»\ siibeylindrical. a little compressed, dorsal

behind ventr.ils, nidimeiitary caudal rays not nnusually devel-

oped. Lateral line complete or nearly so: In-east scaly; lower

jaw thin, with a sharp, hard edge: upper jaw protractile, with

a fleshy covering; no pseudo-branchia; pharyngeal teeth 5-5,
with grinding surface. Peritoneum black, intestine long, twice

or more the length of head and body.

This genus seems most nearly allied to Acrochilus. from

which it differs especially in the absence of a horny plate

upon the upper jaw.

0XYGEN"EUM PULVERUJ.ENTUM. n. S.

In general form this s])ecies resembles a Moxostoma. hav-

ing the subcylindrical. slightly compressed body, deep caudal

peduncle, and posterior position of the dorsal of that genus,

but with a small conical head and large, terminal, oblicjue

mouth. A single specimen obtained is 2.5 inches long, the

de])th 5 in length, caudal peduncle 4.2. The color in alco-

hol is light, slightly silvery on sides and belly, brightly so upon

cheeks and opercles. Back and upper part of sides finely lined

with 1)rown or black, owing to the presence of a small brown
spot upon the middle of the front of each scale. The scales

on back and sides are finely and uniformly specked with black

over all their exposed surfaces, these specks being arranged in

concentric rows on each scale. They are more conspicuous

upon the lower part of the sides than above, and extend for-

ward upon the u])])er i)art of the opercle and the side of the

head, and even dot the iris of the eye. The head is pointed,

but slightly convex above, scarcely curved from the occiput to

the nostrils. It is contained 4,15 times in the length of the fish,

and its depth 1.35 times in its length. The nose is rather long,

3.13 times in head, slightly decurved, interorbital space 3.12.

The mouth is of moderate size, terminal, oblique, contained

2.7 times in length of head, the lower jaw a little the

shorter, thin and somewhat extended around the margin. The
upper lip is above the center of the eye; the upper jaw ex-

tends to the posterior border of the first nostril, and is con-

taiuod 3.4 times in head. Pharyngeal teeth 5 — 5, the three

aiit(']-ior with griu<liiig surface. The gill-rakers of the anterior



- Descriptions of New Illinois Fishes. 137

•Tfill are rather slender, about .2 the length of the gill filaments.

The head and hody are contained 2.4 times m the length of the

intestine. The eye is circular, of moderate size, 4.1 in head; the

hranchiostegal rays are broadly united to the isthmus. Dorsal

T—8. unusually high, its longest ray contained 4.5 times in

head and body, the length of the fin 9.1. The anal is also high,

I—7. its height 5.5 in length, its length 9.75. The caudal is

long, not very deeply forked; the pectorals and ventrals are of

moderate size, the latter reaching the vent, the former 5.4 in

length of fish, not attaining the ventrals. The scales are very

small and uniform. 63 in the lateral line, with 20 longitudinal

rows, and 31 scales before dorsal.

This species is represented by a single specimen obtained

from the Illinois River at Peoria in 1878.

XoTROPrS PHENACOBIUS. U. S.

This fish unites with a strong general resemblance to Phe-

nacobius the characters of Notropis. The body of the adult is

short and deep, the head square, the nose long, and the eye un-

usually large. Length 2.5 in., depth 3.5 to 4: caudal peduncle

4 to 4.75. Color in alcohol indefinite: sides somewhat silvery,

scales along and above the lateral line slightly specked with

black. The head is quadrate in transverse section, flat above,

3.75 to 4: nose decurved, 3.4 to 3.5: interorbital space 2.9 to 3.1.

The mouth is inferior, horizontal, rather small, lips fleshy, not

lobed. lower jaw much the shorter, 2.75 to 3.1 in head, upper

lip opposite the lower margin of the pupil, upper jaw to poste-

rior margin of nostrils, 3.33 to 3.9 in head. Teeth 4—4. In-

testine about equal to head and body, .97 to 1.17. Eye very

large, circular, placed high up. 3.4 to 3.5 in head. Branchios-

tegals free from isthmus. Dorsal I— 8, decidedly before ven-

trals. its length 7 to 8 in body: anal low, I— 8; paired fins

rather broad and short; ventrals not reaching vent, and pecto-

rals falling far short of ventrals, the former 6.25 to 6.4 in head

and body. The scales are thin, large, crowded anteriorly upon

the sides, breast wholly naked in all the specimens seen. Lat-

eral line 35 to 36, longitudinal rows 7 to 9, 13 to 14 before

dorsal.

Describpd from 10 sppciuif^ns. the only oues seen, all taken

at Peoria.



138 Illinois Sfrtfc Laljorafonj of Natural Hisforif.

NOTROPIS MACROLEPIDOTUS, Tl. S.

This fish, represented by a single specimen in our collections

from Illinois, closely resembles Nofropis atripes, from which it

differs especially in the larger scales, and in the entire absence

of any blotch at the front of the base of the dorsal tin. Tt is

elliptical in outline, strongly compressed^ its greatest thickness

being less than half its depth, the back making a uniform

curve from the front of the dorsal to the nostrils. Length 2.1

inches, depth 4.2 in length, caudal peduncle 4.6. Color in al-

cohol plain, the sides somewhat silvery, the opercles brightly

so; no dark vertebral line, but the scales upon the back and

upon the upper part of the sides thickly sprinkled with rather

large circular black specks; fins all plain; upper surface of the

head a little dusky, and thickly sprinkled with black. The

head is a compressed cone, 4.5 in length, upper surface convex;

snout regularly decurved, 3.5 in head; mouth rather large, ter-

minal, oblique; upper lip opposite the middle of the pupil; max-

illary to posterior margin of nostril; upper jaw 3.15 in head,

lower not projecting, 2.6 in head; teeth 4, 2 — 2, 4; eye large,

circular, 3.75 in head; dorsal fin I— 8, about 4 scales behind

the ventrals; anal 11; scale formula 6— 40— 3, 19 before

dorsal.

NOTROPIS ANOGENUS, U. S.

This is a small, insignificant species, extremely similar to

('liola lu'ferodon with perfect lateral line, but clearly distin-

guishable from it in every case which T have observed, by it i

peculiar mouth, very small and extremely oblique, the lower

jaw standing at an angle of no more than 40 degrees with the

vertical. Length. 1.5 in., depth 4.38 to 4.5. Color dark above,

yellowish beneath, with a very distinct black lateral band ex-

tending from a small black spot at base of caudal along sides

to eye and around the nose. Within this band, a small black

blotch about each pore in the lateral line. No vertical bar

below eye. Back very dark, sometimes nearly black, the scales

being thickly specked with black on their lower exposed sur-

face, but only narrowly edged with dusky for one or two rows

of scales above the lateral band. Edge of lower jaw also

s]iockerl vriih blnr-k; fins nil (iusky. Head dark above, white.



fh'sci-ipfiotis of Xf'ir I/liiiois Fi:^/u's. 139

beneath, with the opercles silvery. The sides of the tish arc

also slightly silvery. Head small, 4.25 to 4.5 in length: nose

short and blunt, 4.5 to 4.75 in head; interorbital space 2.0 to

2.W: mouth very small, terminal, extremely oblique, almost

vertical, lower jaw included, its posterior extremity scarcely

reaching the eve, 3.2 to 3.4 in head; upper lip above the uppei"

nuirgin of the ])upil; maxillary scarcely attaining the nostril,

4.5 to 5.1 in head. Teeth 4-4. with grinding surface, sometimes

plain, sometimes crenate. more or less hooked at tip. l\ye

large, 3.1 to 3.33 in head; iris dark above, silvery beneath.

Dorsal T— 8, about one scale behind the ventrals, very oblique

on termimil margin, the posterior rays being less than half the

length of the anterior, height 4.5 to 4.r)(3 in length; anal T— 7,

height ().33 in length, pectorals and ventrals moderate, the

latter attaining the vent, very nearly as long as the pectorals,

t) to 0.75 in length. Lateral line straight, complete, 34 to 37,

longitudinal rows 8 to 11, 13 or 14 before dorsal.

Described from 24 specimens, all collected from Fox River

at McHenrv.



EKEATA.^^

Page 5, line 3 of table, second column, for 39 read 38 ; line 6, second
column for 121 read 120.

Page U, line 17. for conjunction read conjuyation.

Page 21, line 13, for Ricciaci<v read Ricciacea'.

Page 67, line 17 from bottom, for fraligifolia read fraqilifolia.

Page 123, line 4 from bottom, and page 12(5, line 1, for Tricholeoi read
TrichoGolea\

Page 126, line 2, for Tricholea read Trichocolea.

Page 177, line 16, for Lecythia read Lecythea.

Page 333, line 1, after Tachidius add Lilljeb.

Page 33S, under Daphnella brachyura, line 16, insert ffa6.—Massa-
chusetts (Birge), Minnesota (Herrick).

Page 340, line 5, for Hcapaoleberis read Seapholeberis.

Page 389, line 7 from bottom, for carjiogonium read sporocarp ; lines

9, 12, 15, for ojgonium read carpogonmm.
Page 391, line 1, for Cessatii read Cesatii.

Page 400, line 4, for Myceliumin conspicuous read Mycelium incon-

spicuous ; line 14, for coleosporium read Coleosporitun.

Page 401, line 9, for connatas read connnta; line 12, for Taraxicum
read Taraxacum.

Page 408, line 15, for macrocarpa read macrospora; line 18, for Hy-
pohyllous read Hypophyllous.

Pages 470 and 471, head of column 11, for cyprinella read cypri-

nellus.

Page 503, lines 8, 14, and 17, for cyprinella read cyprinellus.

For additional errata see page 247.