76 



SHORTER CONTRIBUTIONS TO GENERAL GEOLOGY, 1919. 



A few small weathered specimens from sta- 

 tion 6019a, Gaillard Cut, opposite Las Casca- 

 das, and from station 6023, along the relocated 

 line of the Panama Railroad at Rio Frijol, 

 seems to helong to this species also. They 

 occur in the Culebra formation. 



Lepidocyclina canellei Lemoine and R. Douvill§ var. 

 yurnagunensis Cushman. 



Plate XXXII, figures 6, 7; Plate XXXIII, figures 1-9. 



Lepidocyclina canellei Lerooine and R. Doiiville var. 

 yurnagunensis Cushman, Carnegie Inst. Washington 

 Pub. 291, p. 57, pi. 12, figs. 7, 8, text figs. 6a, 6b, 

 1919. 



Test differing from the typical form of the 

 species mainly in the form of the lateral 

 chambers, which are somewhat broader and 

 with the upper wall decidedly arched; 

 embryonic chambers either two, subequal or 

 very unequal, or several, the equatorial 

 chambers hexagonal or obscurely diamond 

 shaped. 



Type material from U. S. G. S. station 

 7548, flexure 2 miles south of Yurnaguna, 

 Cuba; collected by O. E. Meinzer. 



At this station the material is composed 

 largely of this species, as is shown by the 

 section in Plate XXXII, figure 7. None of 

 these sections happens to be exactly vertical. 

 The variety shows the embryonic characters 

 of all three of H. Douville's subgenera — equal 

 chambers, as in the type from Panama, 

 Isolepidina (PI. XXXIII, fig. 4); unequal, 

 one small, the other partly encircling and 

 kidney shaped, as in NepJirolepidina (PI. 

 XXXIII, figs. 5-8); and with two irregular 

 large embryonic chambers and two or more 

 small ones, as in Pliolepidina (PI. XXXIII, 

 fig. 9). The last-mentioned condition is also 

 shown in Plate XXXII, figure 6. 



In gross appearance, color, and general 

 characters this material very strikingly 

 resembles that from Bohio, Panama, the type 

 locality for L. canellei. 



Specimens of this variety seem to be present 

 in the Antiguan material from Hodges Bluff 

 (U. S. G. S. station 6862) and Rifle Butts 

 (U. S. G. S. station 6854). 



Other Cuban localities are stations 7516, 

 west end of Los Melones Mountain, and 7543, 

 limestone on the east side of Yateras River; 

 O. E. Meinzer, collecter. 



Lepidocyclina sumatrensis (H. B. Brady) Jones and 

 Chapman. 



Plate XXXIII, figures 10, 11. 



Orbitoides sumatrensis H. B. Brady, Geol. Mag., 2d ser., 



vol. 2, p. 536, pi. 14, fig. 3, 1875; Jaarb. Mijn. Ned. 

 Oost. -Indie, vol. 7, pt. 2, p. 165, pi. 2, fig. 3, 1878. 

 Newton and Holland, Ann. and Mag. Nat. Hist., 



7th ser., vol. 3, p. 259, pi. 10, figs. 7-12, 1899. 

 Lejndocyclina sumatrensis Jones and Chapman, in Andrews, 



A monograph of Christmas Island, London, p. 244, 



pi. 20, fig. 6, 1900. 

 Newton and Holland, Tokyo Coll. Sci. Jour., vol. 27, 



art. 6, p. ]],pl. ], fig. 7, 1903. 

 Lemoine and R. Douville, Soc. g^ol. France, Paleon 



tologie, vol. 12, M6m. 32, p. 18, pi. 1, fig. 14; pi. 2, 



fig. 15; pi. 3, fig. 6, 1904. 

 Cushman, Carnegie Inst. Washington Pub. 291, p. 



60, pi. 12, figs. 3, 4, 1919. 



Test small, discoidal, thickened in the central 

 portion, from which it tapers gradually to the 

 subacute periphery; central protuberant por- 

 tion more or less pustulate throughout, but 

 these protuberant spots of small size and 

 covering the larger part of the area more or 

 less evenly; surface otherwise smooth; 

 periphery thin. 



Vertical sections show the general form and 

 curvature of the test, pillars entirely lacking, 

 lateral chambers with the outer surface con- 

 vex, three or four times as wide as high; 6 

 to 10 chambers in a vertical column. 



Horizontal sections show the embryonic 

 chambers, which are unequal, the larger curved 

 about the smaller semicircular one; equatorial 

 chambers irregularly hexagonal or lozenge 

 shaped. 



Diameter, 2 to 5 miUimeters. 



L. sumatrensis has been found in Cuba at 

 the following stations: 



7513. Limestone outcrop where Palmer trail joins Ocujal 

 trail; O. E. Meinzer, collector. 



7516. West end of Los Melones Mountain: O. E. Meinzer, 

 collector. 



7519. Limestone from drift near top of landslide next 

 north of Los Melones; O. E. Meinzer, collector 



7543. Limestone outcrop on east side of Yateras River; 

 O. E. Meinzer, collecter. 



7554. South of El Jigue, 5 miles above mouth of Yateras 

 River, on west side; O. E. Meinzer, collector. 



7664. North slope of La Piedra, northeast of Jamaica, 

 northeast of Guantanamo; N. H. Darton, collector. 



This species was described by Brady from 

 Sumatra. It is recorded elsewhere in the east 

 from Formosa and the East Indies, and Le- 

 moine and R. Douville record it from Italy, 

 Spain, and France. 



