22 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 89 



LEPIDOCYCLINA (LEPIDOCYCLINA) YURNAGUNENSIS var. 

 MORGANOPSIS Vaughan 



Plate II, figs. 5-9; plate 23, figs. 1-3 



1919. Lepidocycliim margani Cushman, Carnegie Inst. Washington Publ. 291, 



p. 59, pi. II, figs. 1-3, text fig. 7 {not Lemoine and R. Douville). 



1920. Lepidocyclina morgani Cushman, U.S. Geol. Surv. Prof. Pap. 125, p. 74, 



pl- 32, figs. 12-14 {tiot Lemoine and R. Douville). 

 1933- Lepidocyclina yuniagnnensis var. morganopsis Vaughan, Journ. Washing- 

 ton Acad. Sci., vol. 23, p. 354. 



Cushman's description of the specimens which he refers to L. 

 morgani is as follows : 



Test small, discoidal, much thickened in the central portion, from which it 

 tapers rather rapidly to the subacute periphery ; central protuberant portion with 

 a series of large pustules ranging from 5 to 12 or more in number, of which one 

 is usually central, surface reticulate between the pustules ; the margins stellate ; 

 periphery of the test thin and slightly reticulated by the walls of the equatorial 

 chambers. 



Vertical sections show the general form and curvature of the surface of the 

 test, the few pillars in the central region rapidly increasing in diameter toward 

 the surface of the test; lateral chambers with the outer wall convex, averaging 

 about three times as wide as high; in the central region with as many as 10 

 chambers in the vertical columns ; equatorial chambers not increasing rapidly 

 in height; height of those at the periphery not more than double that of those 

 near the center. 



Horizontal sections show the embryonic chambers, which are unequal, the 

 larger one partially surrounding the smaller, as in the subgenus Nephrolepidina 

 of H. Douville, and the equatorial chambers more or less diamond-shaped, as in 

 that subgenus. In other specimens the outer wall of the chamber is convex. 



Diameter 2 to 5 mm. 



Distribution. — Specimens seemingly identical with this species were found at 

 the following stations in Cuba: 7513, limestone outcrop where Palmer Trail 

 joins Ocujal Trail; 7516, west end, Los Melones Mountain; 7543, limestone 

 outcrop, east side of Yateras ; 7554, south of El Jique, 5 miles above mouth of 

 Yateras River on west side, collected by O. E. Meinzer. Specimens, the sections 

 of which are imperfect, but probably belonging to L. morgani, were obtained by 

 O. E. Meinzer at station 7519, limestone from drift near top of landslide next 

 north of Los Melones, and 7522, Mogote Peak. The specimens whose exteriors 

 are figured were obtained by N. H. Darton at station 7664, north slope. La Piedra, 

 northeast of Jamaica, northeast of Guajitanamo, Cuba. [The last number is an 

 error. It should be 7554, just south of El Jique, west side, about 6 miles above 

 the mouth of Yateras River, altitude 150 feet above sea-level. O. E. Meinzer, 

 collector.] 



A locality at which the form is abundant is U.S.G.S. locality no. 

 7552, just south of El Jique, about 6 miles above the mouth of 

 Yateras River, altitude about 250 feet, collected by O. E. Meinzer. 

 The specimens of both L. yurnagunensis and L. yurnagunensis var. 

 morganopsis from this locality are very good. 



