80 MEGALOMASTOMA §. 2. 



obtuso ; sutura impressa, marginata ; anfr. 6 couvexi , penulti- 

 mus elongatus, supra aperturam planatus, dorso gibbus, ulti- 

 mus angustior, antice subito ascendens; apertura leviter sur- 

 sum spectans, circularis, fauce fusca ; perlst. albidum , incras- 

 satum, superne angulatum, expansum et reflexiusculum , intus 

 late sulcatum, tum calloso-marginatum, callo interiore dextror- 

 sum superne angulato-sinuato , sutura canalis obsoleti ad an- 

 gulum anticum raro apparente. — Operc. ? — Long. 35, diam. 

 anfr. penult. 20 mill. Ap. diam. (excluso perist.) llmill. (Coll. 

 Benson.) 



Megalostoma graridum Bens. \n Ann. and Mag. N. H. 2d. ser. XVII. 

 p. 229. 

 — — Pfr. Novit. conch. I. n. 214. t. 35. f. 1.2. 



/9. Minor, rufo-carnea, anfr. S'^; lo"g- 27, diam. I4V2 niill. (Pfr. 1. c. 

 f. .3. 4.) 



Habitat ad Moulmein iinperii Birmani (W. Theobald). 



Obs. Characteribus nonnullis ad lihaphnuliim chrysalUdcm Pfr. 

 aecedere videtur, sed in specimine minore canalis sutnralis vestigiuni nullum 

 adest. 



5. ]?I. coniplanatuiiB Pfr. 



T. subobtecte umbilicata, pupaeforn)is , solida, oblique 

 levissime striatula, sordide violacea, absque epidermide ; spira 

 subcylindrica , apice attenuata , breviter truncata ; sutura im- 

 pressa, pallida; anfr. superst. 5, superi convexi, penultimus 

 vix convexiusculus, ultimus angustior, latere aperturae subpla- 

 natus, antice pallidus, circa umbilicum crista pallida, circum- 

 scripta munitus ; apertura verticalis , circularis , in fundo ca- 

 stanea; perist. album , perincrassatum , superne breviter adna- 

 tum , margine dextro expanso et reflexo, sinistro dilatato, 

 patente, superne subauriculato. — Long. 82^/2» diam. 14 mill. 

 Ap. intus 8 mill. diam. (Mus. Cuming.) 



Megalomastoma complanntum Pfr. in Proc Zool. Soc. 1856. p. 36. 



— — Pfr. Novit. conch. I. p. 67. n, 112. t. 19. 



f. 3. 4. 



— — Pfr. in Malak. Bl. 1856. p. 120. 



Habitat in insula Cuba. 



* 



6. bituberculatum Sow. (Coll. 113. — Ch. ed. 

 nov. p. 264. t. 36. f 5. 6. — Gray Phan. p. 89. 

 — Pocy Memor. I. p. 403. — Ad. Gen. p. 284. — 

 Pfr. in Malak. Bl. 1856. p. 121. 1857. p. 113. — 

 Cyclosl. tortum var. Poey Memor. 1. t. 13. f 1 — 7.) Mou. p. 127. 



