64 DRYMJEUS, MEXICO AND CENTRAL AMERICA. 



Busch, in Bremen, with the statement that it came from Costa Rica. 

 The Berlin Museum received examples of it many years ago from 

 Mr. Carmiol, who travelled in Costa Rica, but he could not give the 

 locality more definitely. Dr. Gabb has also reported it from the 

 same country, without nearer indication." (Martens.*). 



The specimens collected by Gabb are intermediate between costa- 

 ricensis and attenuatus, but in my opinion referable to the latter. 

 See pi. 12, figs. 16, 17. 



B. navarrensis Angas (pi. 2, figs. 21, 22) is referred to costaricensis 

 as a synonym by Dr. von Martens. 



D. PLUVIALIS (Pfeiffer). PI. 3, figs. 28, 29. 



Shell subperforate, oblong-turrited, rather solid, rudely rugose- 

 striate ; whitish, painted with linear rufous streaks which are zigzag 

 on the penultimate whorl. Spire elevated-conic, the apex rather 

 acute, buff; whorls nearly 6, a little convex, the last a little shorter 

 than the spire, obsoletely subcompressed at base. Columella arcuate, 

 thread-like. Aperture little oblique, elliptical ; peristome simple, 

 unexpanded, the columellar margin narrowly reflexed. 



Alt. 22, diam. 9J, length of aperture 11^ mill. (Pfr.) 



Costa Rica (von d. Busch). 



Bulimus pluvialis PFR., in Malak. Bl. ix, 1862, p. 153; Monogr. 

 vi, p. 115; Novit. Conch, iii, p. 423, pi. 96, f. 5, 6. Otostomus plu- 

 vialis MARTENS, Biologia Centr. Amer., p. 218. 



Differs from D. costaricensis in the peristome not being expanded 

 and in the more numerous linear brownish streaks. 



D. BUGABENSIS (von Martens). PI. 3, figs. 34, 35. 



Shell subimperforate, oblong-fusiform, rather thin, lightly striatu- 

 late, shining, yellow, painted with rather wide black, flexuous 

 streaks, mostly short above. Spire conic, the apex rather obtuse, 

 colored like the shell or whitish. Whorl 6, a little convex, the last 

 perceptibly attenuated at base. Aperture half the length of the shell? 

 subperpendicular, ovate-oblong, colored within like the outside ; per- 

 istome slightly expanded, the columellar margin somewhat thickened, 

 distinctly twisted. Alt. 27, diam. 11, length of aperture 7^? mill, 

 (Mart.). 



S. Panama : Bugaba, Department of Chiriqui, at an elevation of 

 1000 ft. (Champion). 



