260 ANTILLEAN OBELISCUS. 



cc. Corneous Cuban species, less than 20 

 mm. long. 



d. 14x3, -aperture 3 mm., whorls 8; 

 striae strongly arcuate. 



0. strictus, no*. 19. 



dd. 17 to 18 x 3.7 to 4 mm., whorls 



about 10, the second 1 mm. diam. 



0. bacillus, no. 20. 



ddd. 16 x 4 to 18.5 x 3.9 mm., with 8 to 

 9y 2 whorls ; summit larger. 



0. homalogyra, no. 21. 



Species of Cuba and Porto Rico. 

 18. 0. MAXIMUS (Poey). PI. 31, figs. 1 to 6. 



Shell imperf orate, long-turrite, the apex rather obtuse; 

 solid, white. Whorls 12, a trifle convex, the last less than 

 one- third the total length. Columella somewhat twisted. 

 Aperture oval-oblong, the peristome unexpended, acute, the 

 right margin arched outward, columellar ma-rgin narrowly 

 refiexed, with no umbilical crevice. Length 37, diam. 8, aper- 

 ture 8x4 mm. (Poey) . 



Cuba, exact locality not noted (Poey) ; Yateras, Santiago 

 and Baracoa (coll. A. N. S. P.) ; Gruantanamo, Santiago, 

 Mayari and Sagua de Tanamo (Arango). 



Stenogyra maxima POEY, Memorias sobra la Hist. Nat. 

 Cuba, i, p. 422, ,pl. 34, f. 9-11 (1854). ARANGO, Fauna, p, 

 90. ? S. gigas POEY, Memorias, a, p. 395 (name only). 

 Bulimus gigas Poey, PFR., Monogr., iv, p. 456 ; Novit. Conch., 

 p. 372, pi. 87, f. 3, 4, 5, 6. 



Poey's original figures are copied, pi. 31, figs, 1, 2. Figs. 

 3, 4 represent a specimen sent to Pfeiffer as typical, and 

 agreeing well with one 'sent by Poey to Tryon. These shells 

 are strong but thin, whitish-corneous or sometimes faintly 

 yellow-tinted, distinctly contracted near the rather large 

 apex. The surface is rather glossy and very weakly striate. 

 Poey's original type was an unusually long specimen, ex- 

 ceeding in length any I have seen. The shell usually meas- 

 ures, 



