THE NAUTILUS. 41 



convex, the last whorl evenly convex. Sculpture of. fine, unequal 

 growth-lines and coarse but low wrinkles, with some indistinct 

 mulleation on the last whorl. Aperture ovate, short ; outer lip well 

 arched ; columella oblique and nearly straight. 



Length 12.3, diam. 7.2, length of aperture 8 mm. 



Length 12.2, diam. 7, length of aperture 7.8 mm. 



Length 12.8, diam. 7, length of aperture 8 mm. 



Northern end of Big Pine Key, abundant in long grass, types no. 

 87358 A. N. S. P., collected by Messrs. Fowler and Brown, June, 

 1904. Other localities are Summerland Key, Cudjoe Key, Sugar- 

 loaf Key, Boca Chica Key, Key West. On the mainland and keys 

 of west Florida at Blue Hill Island, near Goodland Point (C. B. 

 Moore), and one mile east of Marianna, Chipola river (C. W. John- 

 son, 1900, one bleached specimen). 



This species has hitherto been considered a form of S. luleola, 

 from which it differs in the much shorter contour and more convex 

 last whorl. I have seen no specimens from Florida referable to 

 luteola. S. floridana is also closely related to S. campestris, which 

 is still more obese, and more strongly corrugated, with the spire less 

 slender. The most nearly related forms are, however, the Antillean 

 S. ochracina Gundl. of eastern Cuba and S. dominicensis Pfr. of 

 Santo Domingo. In both of these, however, the color is more lemon 

 than ochre-yellow. S. dominicensis is a smoother, white and very 

 beautiful shell. S. ochracina is somewhat rough, streaked white and 

 corneous with a pale lemon tint throughout, and with a longer aper- 

 ture than S.floridana. 



S. floridana varies a good deal in size. The largest seen is from 

 Key West, 14 mm. long, and the smallest adults are from Boca 

 Chica Key, $>\ mm. long, with 3^ whorls. 



A NEW CALIFOKNIAN HELIX. 



BY REV. J. ROWELL. 



Helix (Epiphragmophord) sequoicola soquela n. subsp. 



Shell broadly umbilicate, thickly and regularly striate, very dark 

 brown approaching black, of uniform color with the exception of two 

 parallel white bands above the middle of the body-whorl, shell de- 

 pressed with depressed spire, whorls seven, the last much inflated, 

 strongly banded within. Greater diameter 28 mm., height 12 mm. 



