404 TERRESTRIAL AIR-BREATIIING MOLLUSKS. 



Bulimus vexillum^ Bruguiehes, Encycl. Meth., No. 107. 



Helix vex illumy F^.ru8sac, Hist., PI. CXXI. 



Achatimt vexillum, Lamauck, An. a. Vert., 2<1 ed., VIII. 298. — Not of DeKay. 



Achatina cremita, Swainson, lUiist., PI. LVIIl. 



Achatina palliiUiy Swainson, III., PI. XLI. 



Achatina fasciata, Swainson, 111., PI. CLXII. — Reeve, Conch. Syst. II., Fig. 



12. — D'Orbigny, Moll. Cub., I. 172, PI. VI. Figs. 1 -7. — Pfeiffek, Mon. 



Hel. Viv., II. 245. —W. G. Binney, Terr. Moll., IV. 138; L. k Fr.-W. Sh., 



I. 213 (1869). 

 Achatina solida, Say, Journ. Phil. Acad., V. 122 (1825); ed. Binney, 29. — 



DeKay, N. Y. Moll., 56 (1843). — Pfeiffek, Mon. Hel. Viv., II. 246. 

 Agatina variegata, Kafinesque, Enuin. and Ace., 3 (1831); ed. Binney and 



Tryon, 68. 

 Bulimics fasciatus, Binney, Terr. Moll., II. 266, PI. LV., LVI., LVII. — Leidy, 



T. M. U. S., I. 252, PI. V. (1851), anat. 

 Liguus fasciata, Tkyon, Am. Journ. Conch., III. 165 (1867). 

 Liguus picta, Tryon, 1. c, 165, 4 (1867). 

 Lister, Icon., 1. c, Tab. XII. Fig. 7. — Gualt, 1. c, Tab. VI. Figs. C, D.— 



D'Argenville, I. c, PI. XI. Fig. M. 



Miami River, southern part of Florida and islands and keys adjacent to 

 the coast ; Key West to Key Biscayne. Probably introduced from Cuba. 



Animal dark brown or chocolate color over the Avhole body ; surface very 

 prominently granulated ; eye-peduncles very long when extended, thick at 

 their base, ocular points black and small ; tentacles long, conical, rounded at 

 the extremities ; collar lead-color ; extremity of foot usually rounded ; when in 

 motion, the whole foot glides smoothly forward, without any perceptible alter- 

 nate motion of the margins ; no distinct locomotive disk. 



This species inhabits trees, upon the branches of which it is found. In 

 winter it hibernates by attaching its aperture very strongly to the bark of the 

 tree, by means of a thick, viscid, opaque secretion, which hardens to the coii- 

 eistency of glue. In tearing it away, the bark or the shell is fractured sooner 

 than this secretion. At other times, when the animal withdraws into the shell, 

 it secretes only a thin, transparent epiphragm. 



This is one of the species evidently due to the geographical proximity of their 

 locality to the island of Cuba. It occupies only the extreme end of the penin- 

 sula, and the nearest islands, whose shores are washed by the Gulf Stream, which 

 has already swept by the northern coast of Cuba. Many of the varieties of color- 

 ing and marking common to Cuban specimens may be noticed among the Florida 

 shells; but there is one well-defined variety, which, so far as we know, is pe- 

 culiar to Florida. This variety is longer and less ventricose than the others, 

 and its aperture is less ample. Upon a ground of pure white it is marked 

 upon the body-whorl, and above and below the sutures, with broad, ill-defined, 

 pale yellow bands. The apex and aperture are always white. The yellow 

 bands are sometimes confluent or nearly so, and the } ellow color appears to be 



