62 Storefs Synopsis of the Fishes of North America, 



Northwest Coast of America, Cuv. 



Le Blepsias triloba, Blepsias trilobus, Cor., Cuv. et Val,, iv. p. 375, pi. 90. 

 " Griffith's Cu?., p. 145, pi. 22, fig. 2. 

 " " Three-lobed Blepsias, Rich., Fauna Boreal. Americ, in. p. 53. 



GENUS XII. GASTEROSTEUS, Cuv. 



Body without scales, more or less plated on the sides ; one dorsal fin with 

 free spines. Ventral fin with one strong spine, and no other rays ; bones of 

 the pelvis forming a shield, pointed behind ; branchiostegous rays, three. 



]. Gasterosteus trachurus, Cuv. 



Back and sides olivaceous, sometimes passing into yellowish brown or dusky blue ; the 

 throat and breast, in some individuals, bright, fiery red, belly and flanks silvery. Three dor- 

 sal spines. The sides are defended throughout their whole length by a series of elongated 

 bony plates, arranged vertically ; these plates are continued along the sides of the tail, there 

 being in all twenty-five or twenty-six, exclusive of five small ones that cover the keel of 

 the tail, and render it more prominent. 



D. 111-9. P. 10. V. 1. A. 1-8. C 12. Length, 2 to 3 inches. 



Greenland, Faericius. 



Gasterosteus aculeatus, L. 



Bl., II. p. 73, pi. 53, fig. 3. 



" " Fab., Fauna Groenlandica, p. 169. 



" " Common Stickleback, Shaw's Gen. Zob'l., iv. p. 604, pi. 87, fig. 3. 



" " Three-spined Stickleback, Jenyns's Bnl. Vert., p, 348. 



L'Epinoche a queue armee, Gasterosteus trachurus, Cuv. el Val., iv. p. 4S1, pi. 98, fig. 1. 

 Gasterosteus, Burnstickle, Rich., Fauna Boreal. Americ, in. p. 54. 

 Gasterosteus trachurus, Rough-tailed Stickleback, Yarrell's Brit. Fishes (2d edit), I. p. 90. 



2. Gasterosteus biaculeatus, Mitchill. 



Dark olive-green above, gradually intermixing with light greenish and yellowish on the 

 sides. Fins tinged with yellowish. Two distant spines on the back, and a third near the 

 dorsal fin. A sharp, flat tooth on the external base of each ventral spine ; the European 

 species having simply an enlargement there. 



D. 2, 1-12. P. 9. V. 1-1. A. 1-8. C. 12. Length, 2 inches. 



Newfoundland, Cuv. New York, Mitchill. 



Gasterosteus biaculeatus, Two-spined Stickleback, Mitchill, Trans. Lit. and Phil. Soc. of N. Y., I. p. 430, 



pi. 1, fig. 10. 

 L'Epinoche a deux epines (Gasterosteus biaculeatus, Penn., Shaw, et Mitchill), Cuv. et Val., iv. p. 503. 

 Gasterosteus biaculeatus, Two-spined Burnstickle, Rich., Fauna Boreal. Americ, in. p. 56. 

 " Two-spined Stickleback, Dekay's Report, p. 65, pi. 3, fig. 8. 



