SCHUCHEUT. 



INDEX AND BIBLIOGRAPHY. 139 



Acrothele matthewi costata JMatthew. ^Middle Cambriau. 



Acrotlielt' matthewi var. costata Matthew, Traus. N. V. Acad. Sci., XIV, 1895, 



p. 128, pi. 5, fig. 9. 

 T.oc. Ilanford Brook, New Hninswick. 



Acrothele matthewi lata Mattlicw. Middle Caiiibiiiiii. 



Acrothele matthewi var. lata Matthew, Trans. Royal 8oi'. Canada, III, 18S(i, |>. II, 



pi. 5, tig. 17.— Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, pi. 3, 



Hgs. 2(1-28. 

 Loc. Portland, New lininswiek. 



Acrothele matthewi prima Matthew. Middle Cambrian. 



Acrothele matthewi var. ])rima Matthew, Trans. Royal Soc. Canada, III, 1886, p. 



41, pi. .5, lig. IG.— Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, pi. 3, 



fig. 25. 

 Loc. Ilanford Brook, New Brunswick. 



Acrothele suhsidua (White). Lower and Middle Cambrian. 



Acrotreta f snbaidua White, Wheeler's Geogr. Geol. Expl. and Snrv. west 100 

 Mcrid., Prelim. Rep., 1874, p. 6;— Ibidem, Final Rep., \\ , 1875, ]>. '.U. pi. 1, 

 fig. 3. 



AfTothele subsidna White. Proc. U.S. National Mas., Ill, 1880, p. 47.— Walcott, 

 Bull. ir. S. Geol. Survey, 30, 1886, p. 108, pi. 9, fig. 4;— Tenth. Ann. Kep. 

 U. 8. Geol. Survey, 1891, p. 608, pi. 70, fig. 1.— Beecher, American .I(mr. Sci., 

 XLI, 1891, p. 357, pi. 17, fig. 12.— Hall and Clarke, Pal. New York, VIII, Pt. 

 I, 1892, p. 100, 1)1. 3, tigs. 30, 31. 



Loc. Antelope Spring, Utah; Pioche, Nevada. 



ACROTRETA Kutorga. Genotype A. subconica Kutorga. 



Acrotreta Kiitorgn, \'erhaud. Kais. Min. Gessel. zu St. Petersburg, 1848, p. 

 275.— Walcott, Mon. U. S. Geol. Survey, VIII, 1884, p. 16.— Hall and Clarke, 

 Pal. New York, VIII, Pt. I, 1892, pp. 101, 166;— Eleventh Ann. Rep. N. Y. 

 State Geologist, 1892, p. 250. 



Acrotreta nttenuata Meek=A. gemma. 



Acrotreta haileyi Matthew. ^ Middle and Upper Ca(iil)riaii. 



Acrotreta bailey i Matthew, Trans. Royal Soc. Canada, HI, 1886, p. 36, pi. 5, 



tig. 13.— Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, p. 102, pi. 3, 



tigs. 32-34.— Matthew, Trans. Royal Soc. Canada, IX, 1892, p. 43, pi. 12, tig. 7d. 



Loc. Hanford Brook and Long Reach, New Brunswick. 



Acrotreta gemma Billin<rs. Lower to Upper Cambrian. 



Acrotreta gemma Billings, Pal. Fossils, I, 1865, p. 216, tig. 201. — Walcott, Mon. 

 U. S. Geol. Survey, VIII, 1884, p. 17, pi. 1, fig. 1; pi. 9, fig. 9;— Bull. U. S. 

 Geol. Survey, 30, 1886, p. 98, pi. 8, fig. 1;— Tenth Ann. Rep. U. S. Geol. Sur- 

 vey, 1891, p. 608, pi. 67, fig. 5.— Hall and Clarke, Pal. New York, VIII, Pt. I, 

 1892, p. 102, tigs. .05-57.— Matthew, Trans. N. Y.Acad. Sci., XIV, 1895, p. 126. 



Acrotreta subconica Meek, Hayden's Sixth Ann. Rep. U. S. Geol. Survey Terr., 

 1873, p. 463. 



Acrotreta attenuata Meek, Ibidem, 1873, p. 463. 



Acrotreta pyxidicula White, Wheeler's Geogr. Geol. Expl. and Survey west 100 

 Merid., Prelim. Rep., 1874, p. 9;— Ibidem, Final Rep., IV, 1875, p. 53, pi. 3, 

 tig. 3. 



TjOv. Near Portland Creek, Newfoundland; Eureka and White Pine mining dis- 

 tricts, Nevada. 



Acrotreta gemma depressa Walcott. Middle Cambrian. 



Acrotreta gemma var. depressa Walcott, Proc. U. S. National Mus., XI, 1888, p. 441. 

 Loc. Mount Stephen, British Columbia. 



