18 PROSOPEAS. 



Bulimus elongatulus PPR., P. Z. S., 1846, p. 42; Monogr., 

 ii, p. 154; iii, 391; iv, 453; vi, 91; Conchyl. Cab., p. 197, pi. 

 30, f. 5, 6. REEVE, C. Icon., v, pi. 14, f. 80. Stenogyra e., 

 MARTENS, Ostas. Zool., Landschn., p. 373 ; Jahrb. D. M. Ges., 

 ii, 1875, p. 83, footnote. Prosopeas e., MLLDFF., Verzeichniss, 

 p. 155. 



5. P. PAGODA (Semper). 



Shell imperf orate, subulate, glossy, lightly striatulate, yellow- 

 ish, hyaline ; apex obtuse. Whorls 7 to 7V 2 , nearly flat, gradu- 

 ally increasing, the last tapering below. Aperture subvertical, 

 ovate-trigonal; columellar margin almost straight, somewhat 

 callous below, subtruncate, not reflexed at the insertion. 

 Length 16-19, diam. 5-5.5, alt. of aperture 6-6.5, width 3 mm. 

 The penult, whorl is to the last as l:! 3 /4 (Semper). 



Northern Luzon (Semper). Montalban (Mlldff.). 



Stenogyra pagoda SEMPER Reisen im Archipel der Philip- 

 pinen, iii, p. 138. 



6. P. QUADRASI (Hidalgo). PI. 5, figs. 30, 31. 



Shell subimperforate, long-turrited, narrow, thin, slightly 

 striatulate, subpellucid, whitish (corneous?). Spire much 

 lengthened, the apex obtuse, submamillar; suture impressed. 

 "Whorls 11, wide, rather flattened, the last one-fifth the total 

 length, somewhat tapering basally; columella thread-like, 

 lightly arcuate. Aperture ovate-acute, the base rounded ; peri- 

 stome simple, straight, Length 19.5, width 3.5 mm. (Hid.). 



Cagpayao, Gigaquit, Mindanao. 



Stenogyra quadrasi HID., Journ. de Conchyl., 1888, p. 35, 

 pi. 6, f. 2. Prosopeas q., MLLDFF., Verzeich., p. 156. 



Larger than Stenogyra panayensis Pfr.,-with more whorls 

 and a differently shaped aperture. It may be an Opeas. 



1. P. ROMBLONICUM Moellendorff. 



Shell imperforate, subcylindric-turrited, thin, pellucid, 

 finely curved-striatulate, rather glossy, straw-colored. Spire 

 tapering, the apex semiglobose. Whorls 7, flattened, the last 

 somewhat subangular below the periphery. Aperture moder- 



