EUGLANDINA. 191 



small form from Valles, State of San Luis Potosi, is figured, 

 pi. 24, figs. 52, 53, 54, length 24 mm. Similar examples were 

 found at El A'bra, near Valles. At Tampico the specimens 

 are larger, length 28.5 to 29 mm., and of a handsome fleshy- 

 brown color. This series was collected by Mr. A. A. Hinkley. 



32. E. ROSEA (Ferussac). 



This species was first noticed scientifically by Thomas Say, 

 who erroneously referred it to Polyphemus glans of Montf ort. 

 Specimens were sent by him to Ferussac, who recognized it as 

 distinct under the name Helix rosea, subsequently figuring it 

 in the Uistoire. These facts have been recognized by Beck 

 ^ index Moll., p. 78, 1837) and by Prof, von Martens (Bio- 

 logia Centrali Americana, Mollusca, pp. 60, 78) ; but most 

 other authors identified a roseate Mexican species, E. cumingi 

 Beck, as Ferussac 's H. rosea. 



Ferussac erroneously quotes Buccinum striatum Chemnitz 

 and Bulla truncata Gmel. as synonyms of his H. rosea, which 

 led Say, in 1831, to adopt the name Glandina truncata for the 

 Floridian species. I have elsewhere in these pages shown that 

 Bulla truncata Gmelin, based solely upon Kammerer's de- 

 scription and figure, is identical with Glandina subvaricosa 

 Albers, a South American species, hence the name is not 

 available for our shell, which must be called Euglandina rosea 

 (Fer.). 



Southern U. S. : South Carolina to southeastern Texas, in 

 the humid region. 



Polyphemus glans SAY, Journ. Acad. N. S. Phila., i, p. 282, 

 1818, not of Montf ort. Helix rosea FERUSSAC, Prodrome, 

 Tabl. syst. des An. Moll., p. 50, no. 356 (1821). Glandina 

 rosea BECK, Index Moll., p. 78 (1837). Glandina truncata 

 SAY, Amer. Conch., ii, pi. xx. STREBEL, Beitrag, ii, p. 5, pi. 

 1, f. 1, 3; pi. 3, f. 1, f. 2 (var. parallela), L 3 (var. bullata). 

 BINNEY, Man. Amer. Land Shells, p. 348, with var. minor, 

 p. 475. DALL, Trans. Wagner Free Inst. of Sci., iii, pt. 1, p. 

 19 (1890), with vars. macer and ovata. 



This species is excessively variable, the extreme forms be- 

 ing more unlike in size, shape, texture, color and form of the 



