222 MOLLUSCA. 
Hab. E. Mexico: Rancho de Quilate, near Misantla (Dona Estefania ', Hoge); Agua 
Caliente, also near Misantla (Dota Estefania '). 
This fine species is distinguished by its thin pure white shell, with not very numerous 
round brown spots; these are arranged on the last whorl in four spiral rows, on the 
preceding whorl in three, in the one before that in two rows, those of the second rows 
being often a little larger than the others. The spots are placed rather distant one from 
the other, and they can also be regarded as being arranged in vertical rows, forming 
interrupted stripes from the suture towards the umbilicus, but this arrangement is not 
so regular as the spiral one. The spiral striz of the shell are exceedingly fine. The 
aperture is pure white, the peristome very slightly reflected. 
The average length of the shell is 28-30 millim.; but one figured by Strebel? 
(fig. 18 a) attains even 344 millim., and one reported by Herr Hoge, from Mexico, the 
locality of which is not especially stated, is only 24 millim. long. The breadth of the 
shell is equal to the length of the aperture and to about half the length of the whole 
shell. 
This species closely approaches O. maculatus, Lea, from Guatemala, Colombia, &c., 
and O. dormanni, Binn., from Florida; the former is spotted in nearly the same way, 
but in shape it is distinctly more slender, being only 104 millim. in breadth by 26 millim. 
in length. 
The name “ totonacus” is derived from the name of the tribe of the Totonacs, that 
dwell in the district of Misantla (Strebel, in litt.). 
33. Otostomus championi, sp.n. (Tab. XIV. fig. 5.) 
Testa perforata, ovato-conica, tenuis, confertim et subtiliter spiratim striata, nitida, diaphano-albida ; spira 
conica, apice obtusiuscula; anfr. 6, leviter convexi, regulariter crescentes, sutura alba, ultimus ventri- 
cosus, fascia subsuturali fusca, antrorsum obsolescente et maculis nonnullis fuscis sparsis picta; apertura 
rhombeo-ovata, paullulum obliqua, peristomate tenui, vix expansiusculo, margine columellari triangulatim 
dilatato, verticali, albido. 
Long. 27, diam. 144; apert. long. 13, diam. 9 millim. 
Hab. W. GuatEMaLa: Hacienda de Las Nubes, Cerro Zunil, Pacific slope, in the 
vicinity of the coffee-plantations, at an elevation of about 5000 feet (Champion). 
I have seen only one specimen, but I cannot refer it to any known species. 
34. Otostomus emeus. (Tab. XIV. figg. 6, 6 a-8, 8a.) 
Bulimus emeus, Say, New Harmony Disseminator, Jan. 1, 1829, p. 26 (ed. Binney, p. 40)’; Pfr. 
Monogr. Helic. Vivent. ii. p. 221”. 
Bulimus mexicanus, var. 8. gracilior, Pfr. Monogr. Helic. Vivent. ii. p. 102°. 
Bulimus mexicanus (Lamarck), Reeve, Conch. Icon. v., Bulimus, t. 40. fig. 244°. . 
Bulimulus (Liostracus) mexicanus, var. 8. gracilior, v. Mart. in Malak. Blatt. xii. p. 23 (1865) ’. 
Bulimus ziegleri, var. 8, Pfr. Monogr. Helic. Vivent. i1. p. 175 °. 
Bulimus ziegleri, Reeve, Conch. Icon. v., Bulimus, t. 58. fig. 389". 
