14 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 89 



Vaughan, and L. forresti Vaughan. All five of these species belong 

 to LepidocycUna s.s., which has two equal or subequal embryonic 

 chambers, and all five have hexagonal equatorial chambers. 



Localities and geologic occurrence. — The type locality of L. way- 

 la iidvatighani is a clayey layer above a massive sandstone in a quarry 

 on the Huasteca Petroleum Company's golf course, opposite Tampico, 

 where it is associated with L. parvula Cushman. The species is 

 abundant in the railroad cuttings in the Meson formation from about 

 5 to 7 km east of Los Naranjos, and at Azteca Incline, about 12.5 km 

 south of Los Naranjos in the State of Vera Cruz, Mexico. It has also 

 been collected at numerous places in the Antigua formation in An- 

 tigua ; one such locality is Wetherell Cliff. L. waylandvaiighani is a 

 common species in the middle Oligocene Antigua and Meson forma- 

 tions, and it may range somewhat above that horizon. 



LEPIDOCYCLINA (LEPIDOCYCLINA) FORRESTI Vaughan 



Plate 5, fig. 4 



1927. LepidocycUna {LepidocycUna) forresti Vaughan, Proc. U.S. Nat. Mus., 



vol. 71, art. 8, p. i, pi. i, figs. 1-4; pi. 2, figs. 1-6. 



A single figure of L. forresti is given on plate 5, figure 4, to show 

 some of the differences between it and L. waylandvaughani. The 

 original illustrations of L. forresti should be compared with the 

 illustrations here given and with Cole's original illustrations of L. 

 waylandvaughani. The two species belong to the same group within 

 the subgenus LepidocycUna s.s. L. forresti lacks the strongly de- 

 veloped papillae of L. waylandvaiighani, and its lateral chambers are 

 more depressed, in this feature having more resemblance to L. mantelli 

 (Morton) and L. sup era (Conrad). 



Localities and geologic occurrence. — Island of Antigua, at nu- 

 merous localities in the Antigua formation ; also in Jamaica in de- 

 posits of the same stratigraphic position. 



LEPIDOCYCLINA (LEPIDOCYCLINA) CANELLEI Lemoine and R. Douvillfi 



Plate 6, figs. 1-5 



1904. LepidocycUna caneUei Lemoine and R. Douville, See. Geol. France, 



Paleont., Mem. 32, p. 20, pi. i, fig. i ; pi. 3, fig. 5. 

 1918. LepidocycUna caneUei Cushman, U.S. Nat. Mus. Bull., 103, p. 91, pi. 34, 



figs. 1-6. 

 1920. LepidocycUna can-ellei Cushman, U.S. Geol. Surv. Prof. Pap. 125, p. 75, 



pi. 32, figs. i-S. 

 1924. LepidocycUna ca>iellei Vaughan, Bull. Geol. Soc. Amer., vol. 35, pp. 797, 



819, pi. 33, fig. 4. 



1928. LepidocycUna caneUei Vaughan, Journ. Pal., vol. i, p. 290, pi. 49, figs. 



1-5, 7-9- 



