64 CAMBRIAN BEACHIOPODA. 



Present reference. 



Linnarssonella urania Walcott [1908d, pp. 92-93] Linnarssonella m-ania. 



linnarssoni [Obolus (Lingulella)], Walcott [1901, p. 688] Lingulella linnarssoni. 



linnarssoni [Orthis], Kayser [1883, p. 34] Eoorthis linnarssoni. 



linnarssoni [Orthis (Plectorthis)], Walcott [ 905a, p. 266] Do. 



Linnarssonia Dawson [1890, pp. 53-54] Acrotreta. 



Grabau and Shimer [1907, p. 200] Either Acrotreta or Acrothele. (Seep. 631.) 



Halland Clarke [1892a, p. 251] Acrotreta. 



Hall and Clarke [1892b, p. 567] Do. 



Hall and Clarke [1892c, pp. 107 and 109] Do. 



Matthew [1886, p. 35] Do. 



Matthew [1892, p. 42] Do. 



Walcott [1885a, p. 115] Do. 



Linnarssonia belti Matley [1902, p. 145] Acrotreta belti. 



Linnarssonia belti? Matthew [1892, pp. 42-43] (?) This species is not specifically referred 



in this monograph; it does not belong 

 with Acrotreta belti. 



Linnarssonia cf . belti Matthew [1903, pp. 209-210] (?) This species is not specifically referred 



in this monogTaph; it does not belong 

 with Acrotreta belti. 



Linnarssonia belti magna Matthew [1897b, pp. 169-170] Acrotreta sagittalis magna. 



Linnarssonia misera Hall and Clarke [1892c, pp. 108-109] Acrotreta misera. 



Matthew [1886, pp. 35-36] Do. 



Linnarssonia? nitida Walcott [1901, p. 673] Acrothele nitida. 



Linnarssonia pretiosa Grabau and Shimer [1907, p. 200] Either Acrotreta sagittalis or Acrothele pre- 



tiosa. (See p. 652.) 



Hall and Clarke [1892c, p. 70] Acrotreta sagittalis. 



Schuchert [1897, p. 262] Acrotreta sagittalis (in part) and Acrothele 



pretiosa (in part). 



Walcott [1901, p. 673] Acrothele pretiosa. 



Linnarssonia cf. pretiosa Hall [1890, p. 55] Acrotreta sagittalis. 



(Linnarssonia) pretiosa [Obolella], Dawson [1890, pp. 53-54] Do. 



Linnarssonia sagittalis Freeh [1897, PI. I A, fig. 3a] Do. 



Hall and Clarke [1892c, p. 108] Do. 



Walcott [1885a, p. 115] Do. 



Walcott [1889c, p. 442] Acrotreta depreeaa. 



Walcott [1891a, PL LXVIII, figs. 2a-d] Acrotreta sagittalis. 



Linnarssonia sagittalis taconica Walcott [1889b, p. 36] Acrotreta sagittalis taconica. 



Walcott [1891a, pp. 610-611] Do. 



Linnarssonia sagittalis transversa Freeh [1897, PI. lA, fig. 3b] Acrotreta sagittalis transversa. 



Walcott [1891a, desc. of PI. LXVIII, figs. 



2a, 2c-d] Do. 



Linnarssonia taconica Oehlert [1889, p. 1138] Acrotreta sagittalis taconica. 



Walcott [1887, pp. 189-190] Do. 



Linnarssonia transversa Hall and Clarke [1892a, PL III, figs. 22 and 23] Acrotreta sagittalis transversa. 



Hall and Clarke [1892c, p. 108] Do. 



Matthew [1886, p. 35] Do. 



Matthew [1895a, p. 125] Do. 



Walcott [1885a, p. 115] Do. 



logani [Iphidea], Walcott [1897b, pp. 711-712] Micromitra (Paterina) logani. 



longinervis [Lingulepis], Matthew [1903, pp. 133-135] Lingulella (Lingulepis) longinervis. 



longovalis [Lingulella], Matthew [1903, pp. 123-125] Lingulella triparilis. 



longus [Obolus (Palseobolus) lens], Matthew [1903, pp. 146-147] Obolus (Palseobolus) bretonensis lens. 



longus [Obolus (Schmidtia) obtusus], Mickwitz [1896, pp. 171-172] Obolus (Schmidtia) obtusus. 



loperi [Obolus], Walcott [1898b, pp. 389-390] Obolus loperi. 



(Loperia) [Protorthis], Walcott [1905a, p. 287] Protorthis (Loperia). 



Walcott [1908e, PL XI, and pp. 142 and 147] Do. 



(Loperia) dougaldensis [Protorthis], Walcott [1905a, pp. 287-288] Protorthis (Loperia) dugaldensis. 



louise [Micromitra (Iphidella)], Walcott [1908d, pp. 56-57] Micromitra (Iphidella) louise. 



lowi (Nisusia Jamesella), Walcott [1908d, p. 98] Nisusia (Jamesella) lowi. 



(Lucina) antiquissimus [Obolus], Eichwald [1843b, pp. 142-144] Obolus (Acritis) antiquissimus. 



lusitanica [Lingulepis], Delgado [1904, pp. 365-366] Delgadella lusitanica. 



lyncioides [Orthis lenticularis], Matthew [1892, p. 49] Orusia lenticularis lyncioides. 



Matthew [1903, p. 216] Do. 



lyncioides [Orthis (Orusia) lenticularis], Walcott [1905a, p. 277] Do. 



