HELICINA. 39 
30°; Monogr. Pneum. Vivent. i. p. 376°; Gray, Cat. Phaneropn. p. 2727; v. Mart. in 
Malak. Blitt. xii. p. 10 (1865) *°; Sow. Thes. Conch. iii. p. 287, t. 272. figg. 233-236°; 
Reeve, Conch. Icon. xix., Helicina, t. 16. fig. 145°; Strebel, Abhandl. Geb. Naturw. Ver. 
Hamb. vi. 1, p. 16 (excl. var.), t. 1 a, figg. 10, 10a, 108, & t. 2. fig. 10%. 
? Helicina ambieliana, de Boissy, in Guérin’s Mag. Zool. 1835, t. 68”; Potiez et Michaud, Galerie d. 
Moll. i. p. 228. t. 23. fig. 2. 
Helicina trossula, Morelet, Test. Noviss. i. p. 19 ™. 
Var. Helicina strebeli, Pfr. in Malak. Blatt. viii. p. 173 (1861) %; Monogr. Pneum. Vivent. iii. 
p- 2382"°; Strebel, loc. cit. p. 18, t. la & t. 2. fig. 117. 
Var. Helicina brevilabris, Pfr. P.Z.S. 1856, p. 380; Monogr. Pneum. Vivent. ii. p. 204”; 
Reeve, Conch. Icon. xix., Helicina, t. 33. fig. 296 (magnified) *°. 
Hab. Ceytrau Mexico: Cuernavaca (H. H. Smith). 
E. Mexico: Papantla (Deppe & Schiede*®); Vera Cruz and Misantla (Strebel 1) ; 
Mirador (Berendt * 16; Strebel 16 1”); Cordova, Atoyac, and Cuesta de Misantla 
(Hoge) ; Tabasco (Hage); Teapa and San Juan Bautista in Tabasco (H. H. ree 
S.E. Mexico: Chiapas 2° (Ghiesbreght 18 19). 
N. GuaTEMALA: Province of Peten? (Morelet 4); Coban (Salvin) ; Senahu, north of 
the Polochic Valley (Champion); Guatemala 4? 1°, 
Var.: viridula, elatior. 
Helicina beatriz, Angas, P. Z. 8. 1879, p. 484, t. 40. fig. 13”. 
Hab. Costa Rica: on the hills, up to an elevation of 2500 feet (Gadd 21). 
The general colour is very variable in this species—whitish, yellow, pale red, or even 
somewhat greenish,—often without band, often with a narrow one, few specimens with 
a broad one like H. heloise. H. beatriz seems to be somewhat more elongate; its 
colour approaches that of H. anozona; a similar coloration—greenish, the penultimate 
whorl red—is also seen in specimens from Misantla, the form of which is that of the 
typical flavida. 
Some of the older conchologists ®7 1? give also Jamaica, Cuba, and the island of 
Tobago as habitats of this species; but these assertions are not corroborated by 
later researches. J. trochulina, Orb., from Puerto Rico and ? Cuba, is, indeed, nearly 
allied, but remarkably thinner, almost diaphanous, and more elongate. 
V. Elate trochiformes. 
25. Helicina chryseis. (Tab. I. fig. 14.) 
Helicina chryseis, Tristr. in P.Z. 8. 1861, p. 233°; Pfr. Monogr. Pneum. Vivent. iii. p, 238°. 
Hab. GUATEMALA: mountain-forests of Vera Paz? (Salvin +). 
Distinguished from the other small yellow conoidal species by the distinct angulation 
and the dull somewhat rough (not glossy) surface. 
