NO. 4 ECHINOIDS, TRINIDAD AND VENEZUELA — COOKE 21 



CASSIDULUS (CASSIDULUS) FALCONENSIS (Jeannet) 

 PI. 14, figs. 5-8 



Eurhodia jalconensis Jeannet, 1928, Soc. Paleont. Suisse Mem., vol. 48, p. Z'^, 

 pi. 4, figs. 2-7; pi. 6, fig. 7; text fig. 10. 



Four specimens of this species from the Naturhistorisches Museum 

 of Basel have been available for study. The species is not an Eurhodia 

 as interpreted by Cooke (1959, p. 63), for its peristome is trans- 

 versely elongated and its periproct is flush. 



Like most species of Cassidulus, C. jalconensis varies considerably 

 in proportions. These specimens are low, and their margins are acute, 

 as in Cassidulus gouldii (Bouve) (Cooke, 1959, p. 57, pi, 24, figs. 

 5-12), a species common in Oligocene deposits of the United States, 

 but its petals are longer. The petals are similar to those of Cassidulus 

 sabistonensis Kellum (Cooke, 1959, p. 57, pi. 23, figs. 6-14) from the 

 late Miocene of Florida and the Carolinas, but its test is much lower 

 and its margin much more acute. 



Occurrence. — Venezuela : Punta Gavilan, Falcon, 



Geologic horizon. — Middle Miocene: Upper part of the "couches 

 d'Ojo de Agua" {fide Jeannet). 



Holotype. — Naturhistorisches Museum, Basel, Switzerland. 



Figured specimen. — USNM 638635. 



ECHINOLAMPAS LYCOPERSICUS Guppy 

 PI. 9, figs. 3-5 



Echinolampas lycopersicus Guppy, 1866, Geol. Soc. London Quart. Journ., vol. 22, 



p. 300, pi. 19, fig. 8. 

 Echinolampas lycopersicus Guppy. Cotteau, 1875, K. Svenska Vetensk.-Akad. 



Handl., vol. 13, No. 6, p. 21, pi. 3, figs. 22-26. 

 Echinolampas angtdllae Cotteau, 1875, K. Svenska Vetensk.-Akad. Handl., N.F., 



vol. 13, No. 6, p. 24, pi. 4, figs. 5-8. 

 Echinolampas lycopersicus Guppy. Cotteau, 1881, Soc. Geol. Belgique Ann., 



vol. 9, p. 20. 

 Echinolampas lycopersicus Guppy. Egozcue y Ci'a, 1897, Com. Mapa Geol. 



Espana Bol., vol. 22, p. 59, pi. 19, figs. 1-3 (after Cotteau). 

 Echinolampas lycopersicus Guppy. Jackson, 1922, Carnegie Inst. Washington 



Publ. 306, p. 64, pi. II, figs. 3-6. 

 Echinolampas anguillae Cotteau. Jackson, 1922, Carnegie Inst. Washington Publ. 



306, p. 66, pi. II, figs. 7-9. 

 Echinolampas lycopersicus Guppy. Arnold and Clark, 1927, Harvard Coll. Mus. 



Comp. Zool. Mem., vol. 50, No, i, p. 50. 

 1 Echinolampas sp. Jeannet, 1928, Soc. Paleont. Suisse Mem., vol. 48, p. 35, text 



fig. II. 



