76 THE NAUTILUS. 



bled with zigzag whitish flames ; last whorl violet-brown. Surface 

 shining, weakly ribbed striate. Aperture large, transversely ovate- 

 oblong, with the internal axial fold strong. Axis encircled by two, 

 rarely three, compressed lamella?, the lowest broadly expanded in the 

 last two whorls ; other axial characters as in U. proteus. 



Long. 25, diam. 8.6, ap. long. 6.2, ap. diam. 5.2. Whorls 9. 



Long. 20, diam. 7.5, ap. long. 5.6, ap. diam. 5. Whorls 8. 



Long. 22, diam. 8.6, ap. long. 6, ap. diam. 5. Whorls 8.5. 



Var. " a." Smaller, more swollen-fusiform. 



Long, from 16 to 19 mm. ; diam. 7 to 8 mm. 



Central Cuba; Sierra de Bamburanao near Seibabo de Yaguajay, 

 province of Santa Clara. 



This may be regarded as a more obese member of the U. proteus 

 group. Both forms live in the same locality, but U. proteus dwells 

 under stones, while U. turgida finds a permanent habitat on the 

 upper side of stones. 



Urocoptis (Gongtlostoma) uberrima, n. sp. 



Shell rimate, ovate-oblong, very inflated, more swollen above the 

 middle and rapidly terminating in a narrow concave truncation ; 

 somewhat solid ; pale chestnut colored indistinctly clouded with 

 darker brown and with whitish areas, last whorl purplish brown. 

 Surface obliquely regularly rib-striate ; suture simple. Whorls 7-8, 

 a little convex, the last shortly free in front, with a cord-like keel 

 around the base. Aperture transversely ovate, brown within, the 

 peristome, columella and upper wall, white. Axial fold prominent. 

 Peristome expanded and reflexed. Axis encircled by two subequal 

 lamellae above the middle, somewhat stout, and by three lamellae in 

 the antepenultimate and penultimate whorls, the lower the largest. 



Long. 17, diam. 8.2, ap. diam. 4.5, ap. long. 5.2. Whorls 8. 



Long. 14.5, diam. 8, ap. diam. 4.3, ap. long. 5. Whorls 7. 



Long. 16, diam. 8, ap. diam. 4.2, ap. long. 5. Whorls 7.5. 



Central Cuba ; Sierra de Santa Rosa, between Remedios and 

 Seibabo de Yaguajay, Prov. of Santa Clara. 



Differs from U. turgida by its smaller size, obovate shape, less 

 distinct color pattern, and by the axis. 



Urocoptis (Gongtlostoma) intuscoarctata, n. sp. 



Shell similar externally to U. cioniscus but the axis bears two 



