340 NEAV YORK STATE MUSE/UM 



1898 the state museum obtained a few specimens from Shinne- 

 cock bay, Peconic bay and several stations in Great South bay. 

 This species appears to run upstream farther than the others. 

 In the aquarium it often attacks fish and tears their fins into 

 shreds. During the breeding season the male becomes of a rosy 

 hue beneath. It is a hardy fish, enduring captivity better than 

 the other species. Often found in pools in the woods where 

 seemingly no otlicr fish occur. (After Eugene Smithi) 



Genus gasterosteus (Artedi) Linnaeus 

 Sticklebacks with the innominate bones coalescent on the 

 median lino of the belly, behind and between the ventral fins, 

 forming a triangular or lanceolate plate. Gill membranes 

 united to the isthmus; tail slender, and usually keeled; skin 

 variously covered with bony plates: dorsal spines three in num- 

 ber, strong, with nondivergent bases. Species numerous. 

 Fresh waters and shores of all northern regions; the species 

 highly variable, those found in the sea usually with the body 

 completely mailed, the fresh and brackish water forms variously 

 mailed or even altogether naked. 



171 Gasterosteus bispinosus Walbaum 



Ttvo spined Sticklehack 



Gasterosteus bispinosus Walbaum, Artedi, Gen. Pise. Ill, 450, 1792; Jordan 

 & Gilbert, Bull. 16, U. S. Nat. TNIus. 396, 1883; Jordan & Evermann, 

 Bull. 47, U. S. Nat. Mus. 748, 1896, pi. CXIX, fig. 320, as aculeatus, 

 1900; Eugene Smith, Proc. Linn. See. N. Y. 31, 1898; Bean, 52d Ann. 

 Rept. N. Y. State Mus. 100, 1900. 



Gasterosteus arvlcatus Goode & Bean, Bull. Essex Inst. XI, 5, 1879; Jordan 

 & Gilbert, Bull. 16, U. S. Nat. Mus. 395, 188;^; Bean, Fishes Penna. 

 98. 1893; not of Linnaeus. 



(lastrrosteus neoioracensis De Kay, N. Y. Fauna, Fishes, 66, pi. 6, fig. 17, 

 1.^2. 



Gasterosteus biaeuleatus Mitchill, Trans. Lit. & Phil. Soc. N. Y. I, 430. pi. I. 

 fig. 10, 1815, New York; De Kay, N. Y. Fauna, Fishes, 65, pi. 3, fig. 8, 

 1842, New York and Hudson River to Albany; Storer, Syn. Fish. 

 N. A. 62. 1840; Hist. Fish. Mass. 40, pi. VIII, figs. 2, 3, 1867. 



The body is fusiform, moderately elongate and compressed; 



tlu- caudiil iM'duncle is short and slender and distinctly k-eeled. 



Tho higlit of the body is less than the length of the head and 



Linn. soc. N. Y. Proc. 1897. no. 9, p. 30-3 L 



