30 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I42 



Arnold, B. W., and Clark, H. L. 



1927. Jamaica fossil echini ; with descriptions of new species of Cainozoic 



Echinoidea by Herbert L. Hawkins. Harvard Coll. Mus. Comp. 



Zool. Mem., vol. 50, No. i, 84 pp., 3 figs., 22 pis. 

 1934. Some additional fossil echini from Jamaica. Harvard Coll. Mus. 



Comp. Zool. Mem., vol. 54, No. 2, pp. 139-156, pis. 1-5. 

 Clark, W. B., and Twitchell, M. W. 



1915. The Mesozoic and Cenozoic Echinodermata of the United States. 



U. S. Geol. Surv. Monogr. 54, 341 pp., 108 pis. 

 Cooke, C. Wythe. 



191 9. Tertiary mollusks from the Leeward Islands and Cuba. Carnegie 



Inst. Washington Publ. 291, pp. 103-156. 

 1941a. Oligopygiis nancci, a new echinoid from Venezuela. Journ. Paleont., 



vol. IS, No. 3, pp. 305-306, 3 text figs. 

 1941b. Cenozoic regular echinoids of eastern United States. Journ. Paleont., 



vol. 15, No. I, pp. 1-20, pis. 1-4. 

 1942. Cenozoic irregular echinoids of eastern United States. Journ. Paleont., 



vol. 16, No. I, pp. 1-62, pis. 1-8. 

 1946. Comanche echinoids. Journ. Paleont., vol. 20, No. 3, pp. 193-237, 



pis. 31-34. 

 1948. Eocene echinoids from Panama. Journ. Paleont., vol. 22, No. i, 



PP- 91-93, Pl. 22. 

 1949a. Two Cretaceous echinoids [Orthopsis titicacana, n. sp., Hcmiastcr 



(Macraster) cascajalensis, n. sp.] from Peru. Journ. Paleont., 



vol. 23, No. I, pp. 84-86, pl. 22. 

 1949b. Pygurostoma pasioncnsis, a Cretaceous echinoid from Guatemala. 



Amer. Mus. Nat. Hist. Nov., No. 1422, 3 pp., i fig. 

 1953- American Upper Cretaceous Echinoidea. U. S. Geol. Surv. Prof. 



Pap. 254-A, pp. 1-44, pis. 1-16. 

 1955- Some Cretaceous echinoids from the Americas. U. S. Geol. Surv. 



Prof. Pap. 264-E, pp. 87-112, pis. 18-29. 



1957. Rhynobrissus cuncus, a new echinoid from North Carolina. Proc. 



U. S. Nat. Mus., vol. 107, No. 3379, pp. 9-12, pl. i. 



1958. Cretaceous Echinoidea of New Jersey and adjacent regions. New 



Jersey Geol. Surv., Cretaceous fossils, pt. i, pp. 45-54. pis. 6, 7. 

 1959- Cenozoic echinoids of eastern United States. U. S. Geol. Surv. Prof. 



Pap. 321, 106 pp., 43 pis. 

 COTTEAU, G. R. 



1875. Description des echinides tertiaires des iles St. Barthelemy et Anguilla. 



K. Svenska Vetensk.-Akad. Handl., N. F., vol. 13, No. 6, 47 pp., 



8 pis. 

 Durham, J. Wyatt. 



1950. 1940 E. W. Scripps cruise to the Gulf of California, pt. 2, Megascopic 



paleontology and marine stratigraphy. Geol. Soc. Amer. Mem. 43, 



216 pp., 48 pis. 

 Egozcue Y CfA, JUSTO. 



1897. Adiciones a la descrijx-ion de los equinoides fosiles de la isla de Cuba 



por M. G. Gotteau. Com. Mapa Geol. Espana Bol., vol. 22, pp. 1-99, 



pis. 1-20. 



