PLATE XXI. 
Fernando (Pliocene) Gasteropoda. 
(Unless otherwise indicated figures are natural size.) 
Fig. 1. Trochita radians Lamarck. U.S.N.M. 165310. Maximum diameter of fragment 
20 mm. View of top, X 2. Fugler Point asphalt mine, near Gary (4475). 
Characteristic of the upper Miocene and lower Pliocene of this region. 
Fig. 2. Priene oregonensis Redfield (young). U.S.N.M. 165262. Altitude 46 mm. 
Aperture view. Waldorf asphalt mine (4473). Also known recent. 
Fig. 3. Lunatia lewisii Gould. U.S.N.M. 165264. Young specimen; altitude 23 mm. 
Aperture view, X 2. Waldorf asphalt mine (4473). Also known recent. 
Fig. 4. Thalotia caffca Gabb. U.S.N.M. 165298. Latitude 29 mm. Back view. 
Fugler Point asphalt mine, near Gary (4475). Also known recent. 
Fig. 5. Thalotia caffea Gabb. U.S.N.M. 165297. Latitude of fragment 21 mm. View 
of side of fragment, slightly tilted up. Same locality as fig. 4. 
Fig. 6. Lymnsea alamosensis Arnold. U.S.N.M. 165426. Type. Altitude 6 mm. 
Aperture view, X 6. Fresh-water beds, 1 mile southeast of bench mark 
425, Los Alamos Valley. 
Fig. 7. Lymnsea alamosensis Arnold. U.S.N.M. 165426. Young specimen; altitude 
3.5 mm. Same localitv as fig. 6. 
Fig. 8. Cadulus fusiformis Sharp and Pilsbry. U.S.N.M. 165267. Longitude 10 
mm. Side view, X 3. Waldorf asphalt mine (4473). Known also recent . 
Fig. 9. Cancellaria crawfordiana Dali var. fugler % Arnold. U.S.N.M. 165322. Type. 
Altitude 22.5 mm. Aperture view, X 2. Fugler Point asphalt mine, 
near Gary (4475). Characteristic of this horizon. 
Fig. 10. Ocinehra mieheli Ford var. waldorfensis Arnold. U.S.N.M. 165261. Type. 
Altitude 11 mm. Aperture view, X 3. Waldorf asphalt mine (4473). 
Fig. 11. Turritella cooperi Carpenter. U.S.N.M. 165273. Altitude 34 mm. Aper¬ 
ture view, X 2. Waldorf asphalt mine (4473). Common in the Pliocene 
and Pleistocene. 
Fig. 12. Drillia waldorfensis Arnold. U.S.N.M. 165270. Type. Altitude 18.5 mm. 
Aperture view of imperfect specimen, X 2. Waldorf asphalt mine (4473). 
Characteristic of this horizon. 
Fig. 13. Drillia johnsoni Arnold. U. S. N.M. 165263. Altitude 34 mm. Back view, 
X 2. Waldorf asphalt mine (4473). Also found fossil at San Pedro. 
Fig. 14a. Neverita recluziana Petit. U.S.N.M. 165323. Altitude 35 mm. Aperture 
view. Fugler Point asphalt mine near Gary (4475). Also known 
recent. 
Fig. 146. View of base of same specimen. 
Fig. 15. Neverita recluziana Petit. U.S.N.M. 165299. Altitude 20 mm. Aperture 
view, X 2. Fugler Point asphalt mine, near Gary (4475). Also known 
recent. 
Fig. 16. Natica clausa Broderip and Sowerby. U.S.N.M. 165269. Altitude 21 mm. 
Aperture view, X 2. Waldorf asphalt mine (4473). Also known recent. 
Fig. 17. Nassa waldorfensis Arnold. U.S.N.M. 165272. Type. Altitude 13 mm. 
Aperture view, X 2. Waldorf asphalt mine ('4473). Characteristic of 
this horizon. 
Fig. 18. Drillia graciosana Arnold. U.S.N.M. 165309. Type. Altitude 14 mm. 
Aperture view, X 3. Graciosa Ridge, near Oreutt (4476). Character¬ 
istic of this horizon. 
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