CUSHMAN: PALEONTOLOGICAL TYPES. 
259 
12940 Archaeoplax signifera Stimpson. Plesiotypes. 
to Miocene. Gay Head, Martha’s Vineyard, Massachusetts. 
12947 Cushman, Am. nat., vol. 39, 1905, p. 383, pi. 2, figs. 1,. 
12969 2, 4-8, 10-12. 
13328 Balanus concavus Bronn. Plesiotypes. 
to Miocene. Gay Head, Martha’s Vineyard, Massachusetts. 
13330 Cushman, Am. geol., vol. 39, 1904, p. 294, fig. 1-3. 
3216 Beyrichia maccoyiana Jones. Plesiotype. 
Salina (Silurian). Penn’s Valley, Pennsylvania. 
Jones, Ann. mag. nat. hist., ser. 3, vol. 1, 1858, p. 252, 
pi. 10, fig. 15. 
Rogers, Geol. of Penn., 1858, p. 834, fig. 695. 
3215 Beyrichia pennsylvanica Jones. Cotypes. 
3217 Salina (Silurian). Penn’s Valley, Pennsylvania. 
Jones, Ann. mag. nat. hist., ser. 3, vol. 1, 1858, p. 253, 
pi. 10, fig. 16-18. 
Rogers, Geol. of Penn., 1858, p. 834, fig. 696. 
4919 Cancer kressenbergensis Meyer. Holotype.. 
Nummulitic (Eocene). Ivressenberg, Germany. 
Meyer, Jahrb. fiir mineral., 1846, p. 463. 
= Xanthopsis kressenbergensis Meyer. 
13333 Cancer proavitus Packard. Holotype. 
Miocene. Gay Head, Martha’s Vineyard, Massachusetts. 
Packard, Proc. Am. acad. arts and sci., vol. 36, 1900,, 
p. 3, ph 1, fig. 1-3. 
12970 Cancer proavitus Packard. Plesiotype.. 
Miocene. Gay Head, Martha’s Vineyard, Massachusetts. 
Cushman, Am. nat., vol. 39, 1905, p. 386, pi. 2, fig. 14. 
4840 Cancer sonthofensis Meyer. Holotype- 
Nummulitic (Eocene). Sonthofen, Germany. 
Meyer, Jahrb. fiir mineral., 1846, p. 463. 
= Xanthopsis sonthofensis Meyer. 
