702 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 



aual; ventrals not to veut; no trace of slit behind last gill. Head 

 2i; depth 5i. D. IX-15; A. 14; V. I, 3. Atlantic coast; rather com- 

 mon northward. 



(Mitcb. Trans. Lit. and Phil. Soc. N. Y. i, :580, 1815; Giintber, ii, 163: Acanthocottus 

 viryinianus Storer, Hist. Fish. Mass. 28.) 



1073. C. aesieus Mitcliill.— Gr«&/>(/. 



Grayish olive, much variegated with darker; no distinct paler spots; 

 back and sides with broad, dark, irregular bars; all the fins 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; 

 np});^r preopercular spine shorter than eye, nearly twice length of the 

 next spine, about reaching middle of opercle. Lateral line complete; 

 sides with scattered concealed plates. Dorsal spines rather low, higher 

 than the soft rays; pectorals reaching anal; no trace of slit behind last 

 gdl. Head 23; depth 4. D. IX-13; A. 10; V. I, 3. L. C inches. Coast 

 of Southern New England and New York; our smallest species; com- 

 mon in seaweeds near shore. 



(Mitebill, Trans. Lit. and Phil. Soc. N. Y. i, 1815, 380; Goode & Bean, BulL Essex 

 Inst. 1879, 13: Cottus mitchilU (ynnth^v , ii, 1C4.) 



1074. C. scorpHoides Fabricius. 



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 beliind the last gill. Dorsal fins slightly joined, 



the spines slender; pectorals reaching vent. Head 3; depth 4f. D. 



X-17; A. 12; V. 1, 3. Arctic regions of America; Greenland to Siberia. 



(Fabr. Fauna GroenL 157, 1780; Bean, Bull. U. S. Nat. Mus. xv, 122; Liitkeu Alt. 

 Vidensk. Meddels. Kjiibenb. 187G, 12: Coitus paclujims GWnWieY, ii, IGl.) 



1075. C seorpgtas L. 



Dark olivaceous, mottled with paler; fins dusky, with paler siwts. 

 General characters of the subspecies grcenJandicus, from which it differs 

 chiefly in the smaller size, the narrower interorbital space, which is f 

 diameter of eye, and in the lower s])iuous dorsal, the higliest spines be- 

 ing about one-eighth the length to base of caudal; pore behind last gill 

 usually very small, but evident. Head 2J; depth 4^. D. X-16; A. 14. 

 Northern Europe and Arctic regions of America, south to Eastport, Me. 



(L. Syst. Nat.; Gliutber, ii, 159; Bean, Bull. U. S. Nat. Mus. xv, 116.) 



