Storer’s Synopsis of the Fishes of North America. 309 
1. Aspidophorus Europeus, Cuv. 
Body above brown, with four broad dark-brown bands ; tail brewn ; ventral and anal fins, 
and all the under parts of the head and body, very light brown, almost white. Two dorsal 
fins slightly connected by a membrane of a light brown color, mottled with dark brown. 
Anterior portion of the body hexagonal. Under the muzzle are small barbules, covering the 
whole surface of the branchiostegous membrane, the corners of the mouth, and border of 
the interoperculum; there are two at the extremity of the snout, and a minute one before 
each orbit. 
B.6. D.5-7. P.15. V.1-2. A.7. C.11. Length, 3 to 6 inches. 
Greenland, RicHarpson. 
L’Aspidophore d’Europe (Aspidophorus Europeus, Cuv., Cottus cataphractus, L., Brocn, pl. 39), Cuv 
et VAL., Iv. p. 201. 
Cataphractus Schoneveldii, Pogge, Frem., Brit. An., p. 216, pl. 155, 
Aspidophorus cataphractus, Pogge, Jenyns’s Brit. Vert., p. 344. 
Aspidophorus Europeus, Armed Bull-head, Yarrecu’s British Fishes (2d edit.), 1. p. 85. 
Cottus (Aspidophorus) Europeus, Pogge, Rrcu., Fauna Boreal. Americ., 11. p. 48. 
2. Aspidophorus acipenserinus, ‘T1LEstus. 
Of a light, yellowish gray color, browner above, with transverse undulating brownish 
lines. It is distinguished from the preceding by wanting the barbules on the branchioste- 
gous membrane, and the numerous polygonal plates, marked with stelliform streaks, which 
cover the breast before the ventrals; while, in the European species, that part is covered by 
four plates only, arranged in a square form. 
B.6. D.9-8. P.17. V.1-2. A.8. C.11. Length, 9 or 10 inches. 
Island of Unalaschka, Cuv. 
L’Aspidophore esturgeon (Agonus acipenserinus, Tit,, Phalangistes acipenserinus, Pau.), Cuv. et VAL., 
Iv. p. 207. 
Aspidophorus acipenserinus, Sterronic Aspidophore, Ricu., Fauna Boreal. Americ., 111. p. 49. 
3. Aspidophorus monopterygius, Biocu. 
Above of a light-brown color, with six transverse broad dark bands, those near the head 
the broader. A single dorsal fin. 
D.5. P.10. V.4. A.4. C.16. Length, 4 to 6 inches. 
Greenland, Rricuarpson. Massachusetts, Srorer. 
Cottus monopterygius, Biocu, 178. : 
os ‘s Single-finned Bull-head, SHaw’s Gen. Zodl., 1v. p. 265. 
L’Aspidophore 4 une seule dorsale (Agonus monopterygius, Bu., Scun.; Aspidophoroide Tranquebar, Lacep.), 
Cov. et VaL., Iv. p. 224; vi. p. 554. 
Cottus (Aspidophorus) monopterygius, Cuv., Aspidophore with one dorsal, Ricu., Fauna Boreal. Americ., 
ut. p. 50, 
Aspidophoroides monopterygius, Bull-head, SrorEr’s Report, p. 22, pl. 1, fig. 1. 
Aspidophorus monopterygius, American Aspidophore, Dekay’s Report, p. 62, pl. 2, fig. 6. 
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