OPEAS., 293 
3. Opeas guatemalense. 
Opeas guatemalensis, form A, Strebel, Beitr. Mex. Land- und Siissw.-Conch. v. p. 105, t. 7. 
fig. 2a’. 
Hab. N. Guatemata: Coban (Sarg 1). 
W. GuaTeMALA: Antigua, on moist walls (Sto). 
S.W. Costa Rica: on the banks of the Rio Coto, in the Golfo Dulce (Pitzer). 
Var. majus,n. (Tab. XVIL. fig. 7.) 
Very solid, pale yellowish, somewhat shining, finely striated ; whorls 9, somewhat angulate and whitish at the 
suture, which is rather deep. Columellar margin of the aperture straight, vertical, broad, provided with 
a very fine fold, which runs from inside obliquely to the middle of the outer margin. 
Length of the whole shell 15 millim.; diameter 34; aperture 34 long, 2 broad. Whorls 9. 
Hab. W. Guatemata: Miramar, near San Francisco, in the Costa Cuca (Séoll). 
4. Opeas colimense. 
Stenogyra colimensis, Crosse & Fisch. Journ. de Conch. xvii. p. 425 (1859) *. 
Bulimus colimensis, Pfr. Monogr. Helic. Vivent. viii. p. 133”. 
Opeas colimensis, Fisch. & Crosse, Miss. Scient. Mex., Mollusca, i. p. 603, t. 26. figg. 9,9 a, b°. 
Hab. FE. Muxtco: Cordova (fdoge). 
S.W. Mxzxico: State of Colima (Xantus1~*). 
A specimen from San Juan Bautista in Tabasco, S.E. Mexico (1. H. Smith), 
probably belongs to this species. 
5. Opeas gladiolus. (Tab. XVII. fig. 8.) 
Opeas gladiolus, Crosse & Fisch. Journ. de Conch. xxiv. p. 272 (1877) ° ; Fisch. & Crosse, Miss. 
Scient. Mex., Mollusca, i. p. 604, t. 26. figg. 10, 10a, 0°. 
Hab. N. Guatemata (Sarg! *). 
The most slender of all these species, the aperture being only one-seventh of the 
whole length, and the diameter very little more. A small shell, measuring 5 millim, in 
length and 1 in breadth, and with the aperture 1 millim. in width, found by Herr Hoge 
at Merida, in Yucatan, may be the young of the same species (our fig. 8). 
6. Opeas octonoides. (Tab. XVII. fig. 9.) | 
Bulimus octonoides, C. B. Adams, in Proc. Bost. Soc. Nat. Hist. 1845, p. 72 *; Reeve, Conch. Icon. 
y., Bulimus, t. 84. fig. 593°; Pfr. Monogr. Helic. Vivent. iii. p. 400 °. 
Stenogyra octonotdes, Binney, Terr. Air-breath. Moll. N. Am. v. p. 194*; Angas, P. Z.S. 1879, 
p. 485°; v. Mart. Binnen-Mollusken Venezuela’s, pp. 35, 36°. 
Opeas octonoides, Strebel, Beitr. Mex. Land- und Siissw.-Conch. v. p. 102". 
Bulimus contractus, Poey, Mem. Hist. Nat. de Cuba, i. p. 205, t. 26. figg. 19, 20 (1851) °; Shuttle- 
worth, Mittheil. nat. Ges. Bern, 1854, Diaga. neuer Moll. no. 6, p. 139°. 
