252 proceedings op the academy of [1886. 



Family GASTEROSTEIDJE. 



Genus 1. PYGOSTEUS Brevoort. 



1. Pygosteus pungitius Linnaeus (E. A.)- fP. Gr.). 



1 a. Pygosteus pungitius brachypoda (W. U.). (Unknown to me). 



Genus 2. ETJCALIA Jordan. 



2. Eucalia inconstans Kirtland (G. E). 



2 a, Eucalia inconstans cayuga Jordan (G.). (Variety of doubtful value). 



2 b. Eucalia inconstans pygmma Agassiz (Unknown to me ; characters 



assigned perhaps erroneous). 



Genus 3. GASTEROSTETIS Liuuwus. 



3. Gasterosteus aculeatus (E. A.) (P.). 



3 a. Gasterosteus aculeatus cataphractus Pallas (W.). (Variety of doubtful 



value). 



4. Gasterosteus atkinsti Bean (P.). (Unknown to me ; perhaps local var. 



of aculeatus). 



5. Gasterosteus microcepJialus Girard (W.). (Possibly variety of acZea^ws). 



6. Gasterosteus wheatlandl Putnam (P.). (Perhaps var. of aculeatus). 



7. Gasterosteus dimidiatus Reinhardt (P.). (Unknown to me ; perhaps 



identical with G, gymnurus). 



8. Gasterosteus williamsoni Girard (U.). (Possibly an extreme vai'iety of 



microcephalus or aculeatus). 



Genus 4. APELTES DeKay. 



9. Apeltes quadracus Mitchill (P.). 



Genus 3. SPINACHIA Fleming. 



10. SpinacMa spinachialAvinddVis, (E. P.). (Probably not American). 



