DRYM^EUS, FLORIDA AND WEST INDIES. 



Bulimus floridanus PFR., P. Z. S., 1856, p. 330 ; Monogr. iv, p. 406. 

 Bulimus floridianus (sic) W. G. BINNEY, Terrestr. Moll, iv, p. 

 134. Bulimulus hemphilli B. H. WRIGHT, West American Scien- 

 tist, vi, April, 1889, p. 8 (referring to fig. 449 of Binney's Man. 

 Amer. L. Shells). See also WRIGHT, Nautilus iii, p. 19 ; iv, p. 61. 



Mexican references : Bulimulus dominicus FISCHER and CROSSE, 

 Miss. Scient. Mex., Moll., i, p. 540. STREBEL, Beitr. Mex. Land 

 und Susswasser-Conch., iv, pi. 6, f. 17; v, p. 94. See also, von 

 MARTENS, Biol. Centr. Amer., Moll., p. 237 Bulimus maculatus 

 Lea, TATE, Amer. Journ. of Conch., v, p. 156. 



D. dominicus is the senior name for a shell existing under various 

 names dominicus, marielinus, floridanus , hemphilli in Haiti, Cuba, 

 Florida and eastern Mexico. The San Domingo specimens before 

 me from two collectors show conclusively that the doubt expressed 

 by Crosse as to its occurrence there is not well founded, and it is 

 equally certain that the true dominicus occurs in eastern Mexico, 

 Yucatan and Nicaragua. Having specimens before me of undoubted 

 authenticity as to locality, I fail to find the slightest grounds for sep- 

 arating the Mexican from the Haitian shelfs as a variety, much less 

 a species, though on a priori grounds 1 would be inclined to do so 

 if I could. 



Reeve's figure (copied on my pi. 5, fig. 26) is faulty in showing 

 the columellar expansion too broad, but is otherwise a good represen- 

 tation of the shells before me from Porto Plata (pi. 20, fig. 31). Those 

 from Yuma R. (pi. 20, fig. 30) are more slender, with the earlier 

 whorls reddish. All of these San Domingo shells have the bands 

 above the periphery spotted, in this respect differing from most, though 

 not all Floridian specimens, in which all the bands are usually sub- 

 continuous. 



Mexican shells are very like Haitian. In that described and fig- 

 ured by Strebel, band i (subsutural) is wanting, as in some Haitian, 

 Cuban and Floridian shells. The Labna, Yucatan, shell wants 

 bands i and ii, band iii (peripheral) being dotted, bands iv and v con- 

 tinuous and contiguous. Two specimens collected by Prof. Ralph 

 Tate in Nicaragua, and listed by him under the name " B. macu- 

 latus" are wholly typical in coloring. ' 



Cuban specimens are either. practically typical, like Poey's type of 

 marielinus (pi. 5, figs. 24, 25), which has the formula 00345, the 



