ART. 20 FLORIDA TREE SNAILS — SIMPSON" 27 



region, the third and fourth whorls painted with longitudinal or 

 slightly zigzag blotches and strigations, and these become darker 

 and more irregular on the next two; there is a rather broad white 

 sutural and peripheral band with a dark central line, and it is 

 usually bordered by a dark broken line on the spire and occasionally 

 on the body whorl. Sometimes there is a broken brown line below 

 the white band on the body whorl. The base may be uniform yellow 

 or flamed with irregular brown blotches, and there are generally 

 one or two bluish axial smears on the body and penultimate whorls. 



Length 69, diameter 30 mm.; length 60, diameter 30 mm. 



Lower Florida Keys from Little Pine Key west to Boca Chica; 

 West Summerland Keys of the upper chain. Formerly the most 

 abundant of any of the forms on the Lower Keys. I have never 

 found even recognizable fragments of it west of Boca Chica Key, 

 but it may have formerly extended to Key West. I recently re- 

 ceived a very well-preserved specimen which had been inhabited 

 by a land crab from ]Mr. Cleveland Wells of Big Pine, who collected 

 it on the West Summerland Keys, near the lower end of the upper 

 chain, and I found fragments of the same on one of these islets 

 in the thick, tropical scrub. It may have reached these islets by 

 drifting from Big Pine Key, which is only a short distance away. 

 Its shell is one of the most magnificent of all the land snails, being 

 large, solid, and richly porcellaneous, highly polished and finely 

 painted. 



LIGUUS SOLIDUS LIGNUMVITAE Pilabry 



Plate 1, flg. 11 



1912. Liffuus fasciatus ligmimvitae Pilsbry, Journ. Acad. Nat. Sci. Philadel- 

 phia, ser. 2, vol. 15, p. 461, pi. 37, figs. 4 a^-d. 



Shell large, somewhat elongated, thin but strong, with slightly 

 rounded whorls; axial region pink or purplish; general color pale 

 or greenish yellow, sometimes almost white, often becoming ashy on 

 the spire, the second to fourth whorls having light-brown straight 

 or wavy axial stripes, and these become broader and purplish farther 

 down the spire ; in addition there are few to numerous bluish smears 

 and blotches on the last one or two whorls; beginning at about the 

 fourth whorl and extending to the aperture there is often a single 

 or double row of dark dots at the suture, and there is a whitish 

 peripheral band with a reddish line in its center. Besides these 

 there are generally a few to several green spiral lines or bands on 

 the lower half of the last whorl. 



Length 65, diameter 30 mm.; length 50, diameter 29 mm. 



Lignumvitae Key, mostly on the south part; Lower Matecumbe 

 Key; abundant on both islands and less elongated on the latter. 



