VARIATION AND ZOOGEOGRAPHY OF LIGUUS IN FLOl IDA. 461 



Xear the north end of Key Largo a large series shows the same forme found 



Planter. The castaneozonat us , as at Planter, has a series of spots preceding 

 the continuous band. PI. XXXIX, fig. 24, shows a rather unusual color- form. 

 others resembling figs. 23a, 23d. Several other lots not exax ly localized on the 

 Kc also agree with the Planter series. 



Big Palo Alto Key (PI. XXXVIII, figs. 17, 17a). In the lot of 60 collected 

 there art' no crenatus. The rosealus resemble those of Little F lo Alto and 

 ' otten's Key; the peripheral line is usually wanting but sometime* distinct and 

 brownish-pink. Most specimens show some traces of olive-green or yellowish 

 lines. Few show faint yellow bands, the general tint being faintly rose-whin 

 The pink of apex, columella and parietal wall is intense. 



There are two typically marked castaneozonalu* of the iArgo pattern id 

 five with the pattern imperfectly present on the spire, as in fig. 17a. Sewsl 

 of these, and some of the roseattis have one or more oblique purplish streaks 

 at the varices or resting stages, lik< the race of Lignum Vita Key. This list 

 not been observe <1 in any other Litjuus of the east coast keys. 



E cept in having a mall number, about 11 per cent, of casUmeotonatu*, th 

 shells closely resemble thos< of the adjacent keys, Totten's and Old Rhodes. 



6. Race op Lignum Yitm Key, Liguus fasciati s uom mvitjb. 



Plate XXXV 1 1, figs. 4, Aa-Ad. 



Of the race from Lignum Vitae Key I have seen 100 specime taken by Mr. 

 Moore in 1904 and four taken by Mr. Joseph Willcox about 1880. It has an 

 elaborate pattern of brown and bluish streaks and flames, and brown and green 

 spiral lines, superposed upon a pale ground resembling L.f. r<mus. 



r J he shell is invariably thin, with a long, straightly conic spire; whorls 7 to 

 The ground-color below the roseate apex is pale rose-white, or tlie last 

 whorl may be pale sulphur yellow, always with a narrow white band below tin 



suture, a wide one at the periphery. 



The pattern varies, beginning with (1) oblique brown flames, winch appear 

 on the third whorl, and continue to the end of the embryonic stage (see text 

 figure 2, page 436) . After a brief interruption they are resumed for t he distance 

 of a whorl, more or less, when a partial interruption usuall occurs, where only 

 series of spots near the upper and lower sutures remain. (2) Tins interruption, 

 when it is present, is followed on the fifth or sixth whorls by wider flames of 

 purplish or bluish color, irregular in form and distribution. The series of spots 

 near both suttires remains; a brown sutural line, and one at or near the lower 

 suture appear, the latter becoming peripheral on the last whorl. On the pen- 

 ultimate whorl the flames become rare; and on the h whorl (3) they are 

 replaced by a few bluish oblique variceal or growth-arrest streaks. The sutural 

 and peripheral lines and spot-series continue. Usually there are numerous green 



spiral lines upon the last whorl. . , . 



The thin parietal and eolumellar callus is pale pink. The columella is tnin, 



