298 MOLLUSCA. 
1. Subulina octona. 
Helix octona, Chemnitz, Syst. Conch.-Cab. ix. 2, p. 120, t. 186. fig. 1264 (1788) *; Dillwyn, Descr. 
Cat. of Shells, ii. p. 654? (nec Linn.). 
Bulimus octonus, Bruguitre, in Encycl. Méth. i. p. 825 (1792) °; Lamarck, Hist. Anim. sans Vert. 
ed. 1, vi. p. 124°; ed. 2, viii. p. 283°. 
Achatina octona, Gray, in Ann, Philos. n. ser. ix. p. 414 (1825)°; d’Orbigny, in Ramon de la 
Sagra’s Hist. Nat. de Cuba, Moluscos, p. 168, t. 11. figg. 4-6"; Voy. dans |’Amér. mérid., 
Mollusca, p. 260°; Pfr. Monogr. Helic. Vivent. i. p. 266°; Martini & Chemnitz, Syst. 
Conch.-Cab. ed. 2, Bulimus and Achatina, p. 342, t. 87. figg. 19, 20; Reeve, Conch. Icon. 
vi., Achatina, t. 17. fig. 84"; Tristr. P. Z.S. 1861, p. 230"; Tate, Amer. Journ. of Conch. 
v. p. 157 (1870) *°. 
Subulina octona, Beck, Index Moll. p. 77 (1837) “; H. & A. Adams, Gen. Moll. 11. p. 110, t. 71. 
fig. 3a"; Fisch. & Crosse, Miss. Scient. Mex., Mollusca, i. p. 640, t. 25. figg. 15, 15a"; 
Biolley, Molusc. terr. y fluv. de Costa Rica, p. 15". ; 
Stenogyra (Subulina) octona, Shuttleworth, in Mittheil. nat. Ges. Bern, 1854, Diagn. neuer Moll. 
no. 6, p. 141%; Wiegm. in Weber’s Zool. Ergebn. Reise Niederl. Indien, ii. 1, p. 210, 
t. 15. figg. 18-26, t. 16. figg. 1-7 (anatomy) (1894) ”. 
Sira octona, Ad. Schmidt, Geschlechtsapparat. d. Stylommatophoren, pp. 5, 42 (radula) (1855) ”. 
Stenogyra octona, Binney, Ann. N. York Acad. Sci. iii. p. 100 (1881) (jaw and radula 
described) **. , 
Hab. E. Mexico: Vera Cruz (Uhde, in Mus. Berol.; Hoge). 
S.E. Mexico: Teapa in Tabasco (H. H. Smith). 
British Honpuras: Belize (Bocourt 1%). 
N. Guatemata: Vera Paz (Stoli); Coban (Salvin 12). 
W. GuatemaLa: Hacienda Helvetia, in Upper Cholhuitz, Costa Cuca (Stoll: young). 
Central Nicaracua: throughout the savana region, Grenada, San Ubaldo (Tate }3). 
E. Nicaragua: Castillo and Greytown (Zuate 13). 
E. Costa Rica: Talamanca (Pittier) ; Turrialba, at an elevation of 550 metres above 
the sea, on the ground, at the roots of trees, in moss or under decayed leaves 
(Biolley *). 
S.W. Costa Rica: Puerto Lagarto, 70 metres above the sea, in the valley of the 
Rio Grande de Terraba; Boca de Corredor, in the valley of Coto, and San 
Domingo, both inthe Golfo Dulce (Pittier). 
N. Panama: Boca del Toro, Naval Bay, and Matachin (Tate 18). 
SoutH AMERICA: Venezuela, Ecuador, Guiana, Northern Brazil. 
ANTILLES: Cuba, Jamaica, Haiti, Puerto Rico, St. Thomas, T ortola, Antigua, 
Guadeloupe, Martinique, St. Lucia, Barbados, Trinidad, &c. 
Also recorded from Zanzibar, Madagascar, Sumatra, Java, and New Caledonia. It 
is widely spread in the West-Indian Islands. 
