258 sYNorsJJS of American fossil brachiopoda. [bull.87. 



Lingulella(?) paliformis Hall. Hamilton (Dcv.) 



Lingula ])alilbrmi8 Hall, Thiiteeiith Reii. New York State Cab. Nat. Hist., liStJO 



p. 76, fig. 1. 

 Lingula palii'fonnis Hall, Pal, New York, IV, 1867, p. 8, pi. 1, tig. 7.— Whitlield 



Geol. Wisconsin, IV, 1882, p. 324, pi. 25, fig. 10. 

 Lingulella? pahoformis Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, p]) 



59, 64, pi. 2, figs. 6-8. 

 Loc. Cayuga Lake, New York; Milwaukee, Wisconsin. 



Lingulella radula Matthew. JNliddle Cambrian 



Lingulella radula Matthew, Trans. Royal Soc. Canada, VIII, 18'J1, p. 147, pi. 15 



figs. 7, 8. 

 Loc. St. John, New Brunswick. 



Lingulella roberti Matthew. Lower Ordovician 



Lingulella roberti Matthew, Trans. Royal Soc. Canada, 2d ser., I, 1896, i>. 256 



pi. 1, fig. 2. 

 Loc. Cape Breton, Nova Scotia. 



Lingulella selwyni Matthew. Lower Ordovician 



Lingulella selwyni Matthew, Trans. Royal Soc. Canada, 2d ser., I, 1896, p. 255 



pi. 1, fig. 1. 

 Loc. Cape Breton, Nova Scotia. 



Lingulella? spissa—Sphajrobolus spissus. 



Lingulella starri Matthew. Middle Cambrian. 



Lingulella starri Matthew, Trans. Royal Soc. Canada, VIII, 1891, p. 146, pi. 15, 



figs. 5, 6. 

 I^oc. St. Johns, New Brunswick. 



Lingulella starri minor Matthew. Upper Cambrian. 



Lingulella starri var. minor Matthew, Trans. Royal Soc. Canada, IX, 1892, p. 58. 

 Loc. Near St. John, New Brunswick. 



Lingulella stoneana Whitfield. Upper Cambrian. 



Lingula aurora ■^ar. Hall, Sixteenth Rep. New York State Cab. Nat. Hist., 1863, 

 p. 127, pi. 6, figs. 6-8;— Trans. Albany Institute, V, 1867, p. 104;— Twenty- 

 third Rep. New York State Cab. Nat. Hist., 1873, pi. 13, fig. 5. 



ikngulella stoneana Whitfield, Geol. Wisconsin, IV, 1882, p. 334, pi. 27, figs. 6, 

 7.— Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, pi. 2, figs. 9-11. 



Loc. Prairie du Sac and Mazomanie, Wisconsin. 



Lingulella winona (Hall). Middle Cambrian. 



Lingula winona Hall, Sixteenth Rep. New York State Cab. Nat. Hist., 1863, p. 



126, pi. 6, fig. 9;— Trans. Albany Institute, V, 1867, p. 102.— Sardesou, Bull. 



Minnesota Acad. Nat. Sci., IV, 1896, p. 96. 

 Loc. Lansing, Iowa; Wisconsin. 



LINGTJLEPIS Hall. Genotype Lingula pinniformis Owen. 



Lingulepis Hall, Sixteenth Rep. New York State Cab. Nat. Hist., 1863, p. 129.— 

 Meek and Hayden, Pal. Upper Missouri, Smithsonian Cont. to Knowl., XIV, 

 172, 1864, p.l.— Hall, Trans. Albany Institute, V, 1867, p. 106.— Hall and 

 Clarke, Pal. New Y'ork, VIII, Pt. I, 1892, pp. 59, 163 ;— Eleventh Ann.. Rep. 

 New York State Geologist, 1894, p. 231. 

 0J)8. The essential difference between Lingulepis and Lingulella is that the ven- 

 tral beak of the former is often much attenuated. The amount of attenua- 

 tion, however, is often a very changeable feature in specimens of a species 

 from a locality. It is this variation and the want of large collections that 

 has lead to the making of too many species of Liugulepis. 



