62 BULLETIN 103, UNITED STATES NATIONAL MUSEUM. 



sutures slightly curved backward, extending in to the umbilicus so 

 that only the last-formed coil is visible from the exterior, surface 

 smooth except for lines of beads along the sutures extending from 

 the umbilicus to the periphery; apertural face truncated or even 

 slightly concave, aperture radiate, peripheral, with a short cylin- 

 drical neck. 



Diameter 0.75 mm. 



The type-sections of this species are from U.S.G.S. No. 6035, 

 Gatun formation, in gray green, fine-grained, sandy shell marl from 

 the vicinity of Mindi Hill. It also occurred at 6036, Gatun forma- 

 tion, in dark-colored, fine-grained, sandy clay marl from Monkey 

 Hill, Mount Hope Station ; No. 6019/, upper part of Culebra forma- 

 tion, fourth limy bed from bottom, section opposite Las Cascadas, 

 Gaillard Cut; and No. 6010, lower part of Culebra formation, in 

 dark clay, north of Pedro Miguel Locks. 



This species is somewhat suggestive of some forms < f C. tvetherelii, 

 but has no longitudinal ribbing. It is perhaps nearest to C. gemmata 

 described by Brady from the Philippines and South Sea Islands, but 

 lacks the typical papillate surface common in that species. 



The species is named for Dr. T. Wayland Vaughan, whose collec- 

 tions in the Canal Zone have added much to the available foramini- 

 fera from this region. 



Type-specimens.— Oat. No. 324634, U.S.N.M. 



Genus UVIGERINA d'Orbigny, 1826. 



UVIGERINA CANARIENSIS d'Orbigny. 



Plate 22. fig. 5. 



" Testae pineifonne tuinusculae " Soi-dani, Testaceograpliia, vol. 2, 1798, 



p. 18, pi. 4, figs. E, F, G. H. 

 Uvifferina nodosa, var. B d'Orbigny, Ann. Sci. Nat, vol. 7, 1826, p. 269, No. 3. 

 Uvigerina canariensis d'Orbigny, Foram. Canaries, 1839, p. 138, pi. 1, figs. 



25-27.— II. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 573, 



pi. 74, figs. 1-3. 



Description. — Test elongate, chambers numerous, spirally arranged, 

 triserial, inflated, separated by distinct sutures; wall smooth except 

 for the early chambers which may show traces of spines or longitudi- 

 nal striae; apertural end usually with a tubular neck and often a 

 phialine lip. 



Length 0.75 mm., diameter 0.35 mm. Cat. No. 324635, U.S.N.M. 



The only typical material of this species is from U.S.G.S. No. 6035, 

 Gatun formation, in gray-green, fine-grained sandy shell marl from 

 fchft vio.initv of Mindi Hill. 



