122 /S. T. Smith — Crustaceans of the Atlantic Coast. 



Leander tenuicornis Kingsiey. 



Palcemon tenuicornis Say, Journal Acad. Nat. Sci. Philadelphia, i, p. 'J4it, 1818. — 

 DeKay, Nat. Hist. New York, Crust, p. 30, 1844.— White, List of Crust. British 

 Museum, p. 78, 1847. 



Falemon tenuirostre Milne-Edwards, Hist. nat. des Crust., ii. p. 395, 1837 (evidently 

 a mistake for tenuicornis). 



Palemon natator Milne-Edwards, op. cit., ii, p. 393, 1837. 



Palcemon natator Goodsir, Annals Magazin Nat. Hist., xv, p. 74, pi. 7, fig. 3, 1845. 

 — White, List of Crust. British Museum, p. 77, 1847. — Dana, United States Ex- 

 ploring Expedition, Crust., p. 588, pi. 38, fig. 11, 1852. — Heller, Crustaceen des 

 siidlichen Europa, p. 268, pL 9, figs. 11, 12, 1863. 



Leander erraticus Desmarest, Annales Soc. Entomologique de France, II, vii, p. 92, 

 cut, 1849. 



Leander natator Stimpson, Proceedings Acad. Nat. Sci. Philadelphia, 1860, p. 40 

 (109). 



Leander tenuicornis Smith, MSS. — Kingsiey, Bulletin Essex Institute, Salem, x, p. 

 66, 1878. 



OiF Gaudeloupe (Desmarest). Various parts of the Gulf Stream ! 

 Bermuda !, (G. Browii Goode). North latitude 41° 25', west longi- 

 tude 66° 20' ! (18V2). Banks of Newfoundland (Say). 



Siriella? sp. 



A single immature female, apparently belonging to this genus, 

 was taken east of St. George's Banks, latitude 41° 25', longitude 65° 

 10', by Mr. Harger and myself, September 15, 1872. 



Lucifer sp. 



Taken at the same time and place as the last species. 



Ofi the Geographical Distribution of the foregoing species, and on 

 the Relation of the Fauna of the Atlantic coast of North America 

 north of Cape Cod to that of Greenland and Europe. 



In order to exhibit in a connected manner the principal facts in 

 regard to the geographical and bathymetrical distribution of the 

 species properly belonging to the marine fauna of our coast north of 

 Cape Cod, I have prepared the following tabular synopsis. 



The headings of a part of the eleven columns, in which the geo- 

 gi'aphical distribution is indicated, do not state fully the region 

 included, so that the following explanations are necessary. Under 

 " South of Cape Cod," all those species are included which are found 



