702 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 
anal 5 ventrals not to vent; no trace of slit behind last gill. Head 
2.^; depth 5i. D. IX-15; A. 14; V. I, 3. Athuitic coast; rattier coni- 
inon northward. 
(Mitch. Trans. Lit. and Phil. Soc. N. Y. i, :>80, 181.5; Giinthcr, ii, 163: Aoanthocottufi 
Virginian us Storer, Hi.st. Fish. Mass. 28.) 
1073. C’. aesieus Mitchill. — GraZdn/. 
Grayish olive, nincli variegated with darker; no distinct paler spots; 
back ainl sides with broad, dark, irri'gnlar bars; all the tins barred; 
mandible mottled; belly pale. Head rather broad; maxillary 2.^ in 
head, reaching to Just beyond pupil; supraocular and occipital ridges 
prominent, each with a low, bluntish spine; nasal spines moderate; 
u])per iireopercular spine shorter than eye, nearly twice length of the 
next siiiue, about reaching middle of opercle. Lateral line complete; 
sides with scattered concealed jdates. Dorsal spines rather low, higher 
than the soft rays; pectorals reaching anal; no trace of slit behind last 
gdl. Head 2f ; depth 4. D. IX-43; A. 10; V. I, 3. L. G inches. Coast 
of Southern Xew England and Xew York; our smallest species; com- 
mon in seaweeds near shore. 
(Mitchill, Tran.s. Lit. and Phil. Soc. N. Y. i, 1815, 380; Goode & Bean, Ball. Essex 
Inst. 1870, 13: Coftus miichiUi (ixinthar, ii, 164.) 
1074. C. scorpioides Fabricins. 
Very dark, finely mottled with paler; fins dusky, with paler spots; 
anal and ventral fins with the pale spots larger. Body stoutish, tail 
slender. Head very short; jaws short, the maxillary reaching the 
middle of the large eye; top of head concave between the two occipital 
ridges; preopercular spines quite short; opercular spine almost obsolete. 
Skin nearly smooth. Isthmus narrow, the fold across it very narrow; 
no trace of slit or pore behind the last gill. Dorsal fins slightly Joined, 
the spines slender; i>ectorals reaching vent. Head 3; depth 4f. D. 
X-17 ; A. 12; V. 1, 3. Arctic regions of America ; Greenland to Siberia. 
(Fabr. Fauna Groeiil. 157, 1780; Bean, Bull. U. S. Nat. Mns. xv, 122; Liitkeu Alt. 
Videusk. MeddeLs. Kjubenb. 1876, 12: Coitus pachypus Gxiuther, ii, 161.) 
1075. C. seorpims L. 
Dark olivaceous, mottled with paler; fins dusky, with paler spots. 
General characters of the subs])ecies grcenlandimts, from which it differs 
chiefly in the smaller size, the narrower interorbital space, which is f 
diameter of eye, and in the lower sinnous dorsal, the highest spines be- 
ing about one-eighth the length to base of caudal; ]K)re behind last gill 
usually very small, l)ut evident. Head 24; depth 4|. D. X-IG; A. 14. 
Xortheru Euroiic and Arctic regions of America, south to Eastport, Me. 
(L. Syst. Nat,; Gliutber, ii, 150; Beau, BuU. U. S. Nat. Mus. xv, 116.) 
