421 



Syn. : 1859. Stego cephalu s , Bruzelius, Skand. Amphip. Gamm. p. 38. 



1862. — Spenee Bate, Catal. Amphip. Crust. Brit. Mus. p. 63. 



1865. — Lilljeborg, On the Lysianassa magellanica. p. 18. 



— — Goes, Crust, amphip. mai'is Spetsb. p. 5. 

 1870. — A. Boeck, Crust, amphip. bor. et arct. p. 47. 



Type: Cancer ampulla, Phipps. 



Mandibula; in apice dentibus multis, magnis armatfe; mala interiore raandi- 

 bulae sinistrae item armata. 



Maxillae Imi paris palpo brevi, angusto, larliculato, ad finem laminae ex- 

 terioris porrecto. 



Maxillae 2di paris lamina exteriore angustissima, eadem longitudine aut lon- 

 giore qvam interiore. 



Appendix caudalis mediocris longitudinis, in apice incisa. 



I Kr0yers Diagnose for denne Slaegt anf0res: „Mandibul2e palpo instructse bre- 

 vissimo, crasso, uuiarticulato." Dette, der ogsaa anf0res af Bruzelius, beror paa en 

 Feiltagelse, hvilket allerede Spenee Bate i 18G2 bar oplyst. Heller ikke er det fuld- 

 kommen rigtigt, naar ban siger: ,,Pedes qvinti paris pedibus tertii qvartiqve paris struc- 

 tura, et directione similes." Dana anforer i sin Sla?gtskarakter: ,,Epimer8e 4tai max- 

 imse, 5tis parvis. Antennae superiores appendiculatae. Pedes Imi 2di manibus caren- 

 tes. Pedes 5ti 3tii 4tiqve directione similes." 



STEGOCEPHALUS AMPULLA, Phipps, 1774. 



Cancer ampulla, Phipps, Voy. toward the North Pole 1774. p. 191. tab. 12. iig. 2. 

 — Gammarellus ampulla, Herbst, Krabben u. Krebse. 1804. II. p. 156. pi. 



35. fig. 1. 

 Gammarus ampulla, Fabricius, Eutom. syst. 1794. II. p. 515. 

 — Latreille, Hist. Nat. d. Crust. VI. p. 318. 



— — Sabine, Parrys first voy. (Suppl.) 1824. p. 229. 



— — Ross, App. to Parrys Polar voy. 1828. p. 20. 



— — Owen, App. to J. Ross's sec. voy. 1834. XXVIII. 

 Lysianassa ampulla, Milne-Edwards, Hist. d. Crust. 1840. HI. p. 22. 

 Stegoccphalus inflatus, Kr0yer, Nat. Tidsskr. 1842. 1. R. IV. p. 150. 1845. 2. R. 



I. p. 522. Voy. en Scand. 1840. pi. 20. fig. 2. 



— — White, Sutherl. Journ. of a voy. in Baffins Bay 1852. p. 226. 



— — Bruzelius, Skand. Amphip. Gamm. 1859. p. 38. 



— ampulla. Bell, Belchers last of the arct. voy. (App.) 1855. p. 406. 



pi. 35. fig. 1. 



