24 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Agnostus sidenbladhi Linnarsson. 



Agnostus Sidenbladhi Linnarsson, Vesterg. Cambr., etc., 1869, p. 82, pi. 2, figs. 

 60, 61 (K. Sv. Vet. Akad. Handl.); Ofvers. K. Vet.-Akad. Forhandl., 26, 

 1869, p. 195.— Brogger, Die Sil. Etagen 2-3, Kristiania, 1882, p. 56 (cites bib- 

 liography). 

 Canadian; Europe; Point Levis, Quebec (Levis-Diplograptus dentatus zone) 

 [Raynaond]. 



Agnostus trisectus Salter. 



Agnostus trisectus Salter, Mem. Geol. Surv., dec. 11, 1864, p. 10, pi. 1, fig. 11. — 

 Belt, Geol. Mag., 5, 1868, p. ll.—Salter, Cat. Camb. Sil. Fobs., 1873, p. 

 10. — Linnarsson, Geol. For. Stockholm Forhandl., 5, 1880, p. 157, p. 6, 

 fig. 16.— Tullberg, Sveriges Geol. Unders., Ser. C, No. 42, 1880, p. 24, pi. 

 1, fig. 13.— Linnarsson, ibid.. No. 43, 1880, p. 27, pi. 2, fig. 16.— Matthew, 

 Trans. Royal Soc, Canada, 11, sec. 4, 1894, p. 110.— Groom, Quart. Jour. Geol. 

 Soc, London, 58, 1902, p. 119. 



Lower Ordovician: Europe. 



Canadian (Bretonian^ — Div. C 3b): McNeil Brook, Cape Breton, Nova Scotia. 



Agnostus trisectus germanus Matthew. 



Agnostus trisectus mut. germanus Matthew, Bull. Nat. Hist. Soc. New Bruns- 

 wick, No. 19, 1901, p. 279; Geol. Surv. Canada, Rep. Cambrian Rocks Cape 

 Breton, 1903, p. 221. 



Canadian (Bretonian — Div. C 3b) : East Bay, east of Bras d'Or Lake, Cape Breton, 

 Nova Scotia. 



Agnostus trisectus ponepunctus Matthew. 



Agnostus trisectus mut. ponepunctus Matthew, Bull. Nat. Hist. Soc. New Bruns- 

 wick, No. 19, 1901, p. 278, pi. 5, fig. 8a-c; Geol. Sin-v. Canada, Rep. Cambrian 

 Rocks Cape Breton, 1903, p. 220, pi. 17, figs. 8a-c. 



Canadian (Bretonian — Div. C 3b): McAdam shore. East Bay, Bras d'Or Lake, 

 Cape Breton, Nova Scotia. 



Agnostus tubebculatus Quenstedt. See Beyrichia tuberculata. 



Agnostus tumidosus Hall and Whitfield. 



Agnostus tumidosus Hall and WHiitfield, U. S. Geol. Expl. 40th Pari., 4, 1877, p. 



231, pi. 1, fig. 32.— Brogger, Geol. Foren Stockholm Forhandl., 8, 1886, p. 



204.— Vogdes, Amer. Geol., 9, 1892, p. 393, pi. 10, fig. 8.— Walcott, Mono. 



U. S. Geol. Surv., 32, pt. 2, 1899, p. 455, pi. 63, figs. 5, 5a. 

 Cambrian and ?Ordoviciau (Pogonip): Eureka District, Nevada. 



Agraulos cylindricus Miller. See Arionellus cylindricus. 



Agraulos oweni Meek and Hayden. See Ptychoparia oweni. 



Agraulos (Arionellus) pustulatus Vogdes. See Glaphurus puslulatus. 



Agraulos saratogensis Walcott. See Plethopeltis saratogensis. 



Alecto Lamouroux. See Stomatopora Bronn. 



Alecto auloporoides Nicholson. See Proboscina auloporoides. 



Alecto conpusa Nicholson. See Proboscina confusa. 



AXECTO prondosa Nicliolson. See Proboscina frondosa. 



Alecta inflata Hall. See Corynotrypa inflata. 



