1040 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Proetus undulostriatus — Continued. 



Proetus undulostriata Ruedemann, Bull. New York State Mus., 42, 1901, p. 536; 



ibid., 162, 1912, p. 117, pi. 9, figs. 2, 3. 

 Trenton (Snake Hill): Snake Hill, Saratoga County, and Green Island, near 

 Albany, New York. 



PROLOBELLA Ulrich. Genotype: P. striatula Ulrich. 



Prolobella, Ulrich Geol. Minnesota, 3, pt. 2, 1894, p. 532. 



Prolobella aviculoides (Hall). 



Modiolopsis aviculoides Hall, Pal. New York, 1, 1847, pp. 161, 317, pi. 36, figs. 



la, b.— Ruedemann, Bull. New York State Mus., 49, 1901, p. 28. 

 Trenton: Middleville, New York. 



Prolobella? hermione (Billings). 



Avicula Hermione Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 40, fig. 42, 

 (adv. sheets, 1862); Geol. Canada, Geol. Surv. Canada, 1863, p. 170, fig. 156. 

 Trenton: Montreal, Quebec. 

 Plastotype.— Gat. No. 46094, U.S.N.M. 



Prolobella striatula TJlrich. 



Prolobella striatula Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 532, pi. 35, fig. 27. 

 Pterinea striatula Miller, N. A. Geol. Pal., 2d App., 1897, p. 784 (gen. ref.). 

 Trenton (Prosser) : Pleasant Grove, Minnesota. 

 Holotype.— Cat. No. 46280, U.S.N.M. 



Prolobella subelliptica (D'Orbigny). 



Avicula elliptica Hall (not Phillips, 1836), Pal. New York, 1, 1847, p. 162, pi. 36, 

 fig. 3.— Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 170, fig. 155.— 

 Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 68, fig. 



Pterinea elliptica Miller, N. A. Geol. Pal., 1889, p. 506 (gen. ref.). 



Avicula subelliptica D'Orbigny, Prodr. Pal., 1, 1850, p. 13. — Emmons, Amer. 

 Geology, 1, pt. 2, 1855, p. 175, pi. 13, fig. 27. 



Trenton: Middleville, New York. 



Prolobella subspatulata (Hall). 



Modiolopsis subspatulatus Hall, Pal. New York, 1, 1847, p. 159, pi. 35, figs. 9a, b, 

 Lyonsia subspatulatus Emmons, Amer. Geology, 1, pt. 2, 1855, p. 171. 

 Pahearca subspatulata Hall, 12th Rep. New York State Cab. Nat. Hist., 1859. 



p. 71 (gen. ref.). 

 Cypricardites subspatulata Miller, N. A. Geol. Pal., 1889, p. 477. 

 Trenton: Watertown, New York. 



Prolobella trentonensis (Conrad). 



Avicula Trentonensis Conrad, Jour. Acad. Nat. Sci. Philadelphia, 8, 1842, p. 240, 



pi. 12, fig. 10.— Hall, Pal. New York, 1, 1847, p. 161. pi. 36, figs. 2a-d.— 



Emmons, Amer. Geology, 1, pt. 2, 1855, p. 176, pi. 13, figs. 28-30.— Lesley, 



Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 70, fig. 

 Pterinea trentonensis Miller, N. A. Geol. Pal., 1889, p. 506 (gen. ref.). 

 Prolobella trentonensis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 532 (gen. ref.). — 



Ruedemann, Bull. New York State Mus., 162, 1912, p. 97, pi. 5, fig. 4. 

 Avicula aviformis Conrad, Jour. Acad. Nat. Sci. Philadelphia, 8, 1842, p. 243, 



pi. 13, fig. 11. 

 Trenton: Middleville, Watertown, Canajoharie, etc., New York. 



PROLUCINA Dall. Genotype: Tellina prisca Hisinger. 



Prolucina Dall (subgenus of Lucina), Zittel-Eastman Textb. Pal., 1900, p. 408. 



