CERION, GROUP VII. 2*27 



nal cone longer. Whorls about 11, strongly ribbed, the spaces wider 

 than the ribs ; this sculpture extending upon the cone to the first 

 whorl. White, sometimes uniform, but typically marbled with zigzag 

 stripes and fine transverse markings of purple-brown. Aperture 

 rather small, brown inside, the parietal lamella very small or wanting, 

 rarely of moderate size; lip reflexed, not so wide as in mumia ; 

 parietal callus generally thin, often scarcely interrupting the ribs. 

 Size variable: SlJxlOj; 33 x 9J ; 26x11 mill. (Morro Castle, 

 Havana). 33 to 37 x 12 ; 31 to 34^ x 10 ; 25J x 9 mill. (Carmelo, 

 near Havana). 34x10^; 28x11; 27x10^ (Marianao, near 

 Havana). 



Northern coast of Provinces of Havana and Matanzas. 



Helix chrysalis FER., Hist., pi. 153, f. 1-7. Pupa chrysalis Fer., 

 DESHAYES, An. s. v ert., viii, p. 181 ; and in Fer., Hist., ii, p. 205. 

 KUSTER, Conchyl. Cab., p. 110, pi. 15, f. 1, 2. BECK, Index, p. 

 82, with varieties normalis (Fer. Hist., pi. 53, f. 1-3), edentula (f. 4) 

 and bidens (t. c., f. 5). POT. & MICH., Galerie. ii, p. 163, pi. 16, f. 

 9, 10. SOWB., C. Icon. pi. 1, f. 5. Pupa mumia Brug., DESH., in 

 Fer., Hist., ii, p. 208 (description and figures, but exclusive of part 

 of synonymy). KUSTER, Conchyl. Cab. p. 4, 110, pi. 1, f. 1, 2; pi. 

 15, f. 3, 4. Pupa mumia BLAINV., Malacol. p. 458, pi. 39, f. 5 

 Pupa sulcata SOWB., Genera of Shells, fig. 4; the same plate printed 

 in REEVE, Conchol. Syst., ii, pi. 170, f. 4. Strophia chrysalis Fer., 

 MAYNARD, Contrib. to Sci. iii, p. 1, pi. 1, f. 1, 2. Strophia scripta 

 MAYNARD, Contrib. to Sci. iii, p. 3, pi. 1, f. 3, 4. Strophia scripta 

 obliterata MAYN., Contrib. to Sci. iii, p. 5, pi, 1, f. 5, 6. Strophia 

 fastigata MAYN., Contrib. to Sci. iii, p. 6, pi. 2, f. 1, 2. Strophia 

 eurystoma MAYN., Contrib. to Sci. iii, p. 7, pi. 2, f. 3, 4. Strophia 

 eurystoma ignota MAYN., Contrib. to Sci. iii, p. 9 (March, 1896). 



There can be little doubt that the type locality of chrysalis was 

 Havana ; specimens agreeing in all respects with Ferussac's figures 

 being abundant in that neighborhood. Figures 1 to 7 of Ferussac's 

 plate 153 represent forms of this variety, but the figures 7, 8 on his 

 plate 156 are probably C. marmoratum. 



Specimens from Morro Castle, Havana (pi. 31, figs. 2, 3, 4), are 

 mostly rather thin, with the parietal lamella small or obsolete, and 

 the lip and parietal callus generally thin. They vary from uniform 

 dirty-white to profusely marbled. These are typical chrysalis and 

 probably from the original locality. 



