232 SYNAPTERPES. 



This group may possibly belong to the Oleacinidce near 

 Dolicholestes. 



5. S. AURATUS (Pfeiffer). PI. 36, fig. 80. 



Shell nearly covered perforate, oblong-turrite, thin, lon- 

 gitudinally finely striate, pellucid ; golden, obsoletely marked 

 with darker spiral lines. Spire turrite, obtuse; suture sub- 

 marginate, minutely crenulate; whorls 7, a trifle convex, the 

 last scarcely two-fifths the total length. Columella rather 

 straightened. Aperture oval-oblong; peristome simple, un- 

 expanded, the colurnellar margin narrowly reflexed, nearly 

 appressed. Length 30, diam. 10, aperture 13 x 5.5 mm. 

 (P/r.). 



Ecuador: Baeza -and San Jose (Martinez) ; habitat of type 

 in Pfr. coll. unknown. 



Bulimus auratus PFR., Proc. Zool. Soc. 1846, p. 32 ; Monogr. 

 ii, 172. REEVE, Conch. Icon, v, pi. 51, f. 335. HIDALGO, 

 Viaje al Pacifico, Moluscos, p. 100. Mesembrinus auratus 

 Pfr., COUSIN, Bull. Soc. Zool. France, xii, 1887, p. 234. 



A delicate, glassy species, of the substance and color of 

 a "Vitrina" (Reeve). Reeve's figure of the type is given. 



Var. aratus n. v. PL 37, figs. 95, 96. 



The whorls, except the very smooth embryonic two, are 

 deeply striate longitudinally, the stria? straight; on the 

 penult, whorl there are three or four in the space of one 

 millimeter. They are strongest near the suture and fade 

 out to a large extent on the base of the last whorl. Length 

 27, diam. 11, length of aperture 11.8 mm. 



6. S. AMABILIS n. sp. PI. 36, fig. 79. 



Shell nearly covered perforate, oblong-turrite, thin, pale 

 green, becoming whitish at the apex, and under a lens 

 showing many very faintly darker spiral lines on the last 

 whorl. Surface very glossy, weakly but rather closely 

 etriate, weakly plicate below the suture, which is just per- 

 ceptibly irregular. Spire straightly turrite, the summit ob- 

 tuse. Whorls 8y 2 , moderately convex. Aperture a trifle 



