40 BULIMULUS-ANTILLEAN. 



very delicately striated spirally. Whorls 7 ; spire elevated and 

 acute. Aperture slightly oblique, long-ovate, somewhat whitish 

 within, less than half the length of shell ; peristome unexpanded, 

 sharp and simple. Alt. 26, diam. 10-11, alt. of aperture 11, width 

 6 mill. (Drouet). 



Ilet-la-Mere, French Guiana, on tree trunks (Eyries) ; Guadelupe 

 (Maze). 



Bulimus eyriesii DROUET, Essai sur les moll. terr. et fluv. de la 

 Guyaue Francaise, p. 63, pi. 1, f. 12, 13 (1859). PFR., Monogr., vi, 

 p. 147. Bulimulus eyriesii Dr., MAZE, Journ. de Conchyl., 1883, p. 

 17; J. de C., 1890, p. 24. Bulimulus f rater culus Fer., REEVE, 

 Conch. Icon. pi. 63, f. 438. BLAND, Annals of the Lyceum, N. Y. 

 vii, p. 351, etc. Bulimulus fraterculus Fer., SMITH, Ann. Mag. 

 N. H. (6), viii, 1891, p. 252 ; Journ. of Conch, viii, 1896, p. 241. 

 Not B. fraterculus (Ferussac) P. & M. 



Under the above varietal name I place a very large series of 

 shells before me, which agree in essential characters with the thinner 

 and unicolored forms of B. exilis, and in fact offer every possible 

 gradation with that species. Typically, var. eyriesii is a little more 

 conoidal and wider below ; it is never banded, being whitish-corneous, 

 light brown, or dark purplish-brown ; it is thinner than typical 

 exilis, but varies in this respect. Faint, close epidermal spirals are 

 present on fresh or unrubbed shells, and in a state of nature the 

 surface carries considerable adherent soil in many cases. The last 

 whorl is less swollen than in B. barbadensis. Specimens referable 

 to this form are before me from Barbados, St. Lucia, Guadelupe, 

 Nevis (fig. 60), St. Kitts, (figs. 58, 59), St. Croix, St. John, St. 

 Thomas, (fig. 57), Antigua, Vieque and Porto Rico, (figs. 54, 55). It 

 apparently inhabits Trinidad also, although I have seen no speci- 

 mens from thence ; and if we may trust Drouet's information, Mre 

 Island, off French Guiana. 



As M. Charles Eyries visited Martinique as well as Guiana, and 

 mixed his shells, some little uncertainty may be felt in the localities 

 given for his specimens. Maze reports B. eyriesii from " Basse- 

 Terre, vanlieue, morne a Vaches " Guadelupe, and islet of Saint- 

 Martin, Morne des Accords (Van Rijersma), alt. 310 meters, on tree 

 trunks and under stones in the shade. 



B. NICHOLLSI (A. D. Brown). PI. 9, figs. 55, 56. 



Shell perforated, ovate-conic, solid and strong, reddish-brown or 

 olivaceous, sometimes with a narrow light peripheral girdle, the 



