TYPE SPECIMEN'S OF INVERTEBRATE FOSSILS. 453 



18331. Olenellus (Mesonacis) broggeri Walcott. Cotype. 



Lower Cambrian. Conception Bay, Newfoundland. 

 Walcott, Proc. U. S. Nat. Mus., XII, 1SS9, p. 41. 

 See Olenellus (Holmia) broggeri. 



8574. Olenellus gilberti (Meek ms.) White. Cotypes and 



15411. plesiotype. 



15412. Lower Cambrian. Pioche, Prospect Mountain, and High- 

 154 1 6. land Range, Nevada. 



White, Prelim. Rept. U. S. Geogr. Surv. W. 100th Merid., 1874, 

 p. 7; Rept. U. S. Geogr. Surv. W. 100th Merid., IV, Pt. I, 

 1877, p. 44, pi. 2, figs. 3a-3e. — Walcott, Mori. VIII, U. S. Geol. 

 Surv., 1884, p. 29, pi. 9, figs. 16, 16a; pi. 21, fig. 13; Bull. 

 No. 30, U. S. Geol. Surv., 1886, p. 170, pi. 18, figs, i-ic; pi. 

 19, figs. 2-2k; pi. 20, figs, i-il, 4; Tenth Ann. Rept. U. S. 

 Geol. Surv., 1890, p. 636, pi. 84, figs, i-ig; pi. 85, figs, i-ig; 

 pi. 86, figs, i-im, 4. 



See Olenellus howelli. 



8573. Olenellus howelli (Meek ms.) White. Cotypes and 



1 541 1. plesiotype. 



15412. Lower Cambrian. Pioche, and Prospect Peak, Eureka 



District, Nevada. 



White, Prelim. Rept. U. S. Geogr. Surv. W. 100th Merid., 1874, 

 p. 8; Rept. U. S. Geogr. Surv. W. 100th Merid., IV, Pt. I, 

 1877, p. 47, pi. 2, figs. 4a, 4b. — Walcott, Mon. VIII, U. S. Geol. 

 Surv., 1884, p. 30, pi. 9, figs. 15-15D; pi. 21, figs. 1-9. 



= Olenellus gilberti. 



15407. Olenellus iddingsi Walcott. Cotype. 



Dower Cambrian. Prospect Mountain, Eureka District, 

 Nevada. 



Walcott, Mon. VIII, U. S. Geol. Surv., 1884, p. 28, pi. 9, fig. 12; 

 Bull. No. 30, U. S. Geol. Surv., 1886, p. 170, pi. 19, fig. 1; 

 Tenth Ann. Rept. U. S. Geol. Surv., 1890, p. 636, pi. 84, fig. 2. 



15418. Olenellus thompsoni (Hall). Plesiotype. 



15419. Dower Cambrian. Parker's Quarry, Georgia, and two 



miles east of Swanton, Vermont. 



Walcott, Bull. No. 30, U. S. Geol. Surv., 1S86, p. 167, pi. 17, figs. 

 1, 2, 4, 9; pis. 22, 23, fig. 1; Tenth Ann. Rept. U. S. Geol. 

 Surv., 1890, p. 635, pi. 82, figs. 1, ia; pi. S3, figs. i-ib. 



15399. Olenellus ( Mesonacis) vermontana (Hall). Plesiotype. 

 Dower Cambrian. Georgia, Vermont. 



Walcott, Tenth Ann. Rept. U. S. Geol. Surv., 1890, p. 637, pi. 87, 

 figs. i-ib. 



= Mesonacis vermontana. 



24604. Olenoides curticei Walcott. Cotypes. 



Middle Cambrian. Near Blaine, Coosa Valley, Alabama. 



Walcott, Proc. U. S. Nat. Mus., XI, 1888, p. 443, text fig. on 

 p. 444- 



