30 MOLLUSCA. 
Il. Rostrate. 
6. Helicina rostrata. 
Helicina rostrata, Morelet, Test. Noviss. ii. p. 17 (1851)'; Pfr. Monogr. Pneum. Vivent. i. p. 8617; 
Gray, Cat. Phaneropn. p. 261°; Sow. Thes. Conch. iii. p. 288, t. 278. figg. 279, 280°‘; 
Reeve, Conch. Icon. xix., Helicina, t. 18. fig. 155°; Tate, in Am. Journ. Conch. v. p. 159 
(1870) °; Mart. P.Z.S. 1875, p. 6497. 
Helicina salvini, Trist. P. Z. 8. 1861, p. 238, t. 26. figg. 9, 10°; Pfr. Novit. Conch. i. p- 202, t. 53. 
figg. 12-15°; Malak. Blatt. viii. p. 174 (1862) *; Monogr. Pneum. Vivent. iii. p. 245%. 
Hab. N. Guatemaua: San Agustin Lanquin in Vera Paz’ *, in rocky localities (More- 
let1*); Vera Paz*5; Coban (Salvin™); Guatemala 8 9 10 11, 
Centr. Nicaragua: San Diego, in the savana region (Tate 6); Acoyapa (Belt), 
The specimen from the last-named locality is somewhat smaller (diam. 12, alt. 10 
millim.) than those from Guatemala. 
7. Helicina denticulata. | 
Helicina denticulata, Pfr. P.Z.S. 1855, p. 1037; Novit. Conch. i. p. 84, t. 23. fige. 9, 10°; 
Monogr. Pneum. Vivent. ii. p. 208°; Sow. Thes. Conch. iii. p. 288, t. 273. fig. 2814; Tate, 
in Am. Journ. Conch. vy. p. 159 (1870)°; Reeve, Conch. Icon. xlx., Helicina, t. 18. 
fig. 157°. 
Hab. Honpuras 13 45 6, 
E. Nicaracua: Forests of Chontales, rare, ascending trees (Tate >). 
Chiefly distinguished from H. rostrata by the denticulate suture. 
Ill. Turbinate. 
8. Helicina zephyrina. 
Helicina turbinata (Wiegm.), Menke, Synops. Moll. p. 89 (1830) (without description)'; v. Mart. 
in Malak. Blatt. xii. pp. 6-9 (1865) *; Sow. Thes. Conch. iii. p. 288, t. 273. figg. 276-278° ; 
Reeve, Conch. Icon. xix., Helicina, t. 8. fig. 63*; Strebel, Abhandl. Geb. Naturw. Ver. 
Hamb. vi. 1, p. 18, t. la & t. 2. fig. 6°. 
Helicina turbinata, var. 2, Pfr. in Martini & Chemnitz, Syst. Conch.-Cab. ed. 2, Helicina, no. 46, 
p. 40, t. 9. fig. 31° . 
Helicina zephyrina, Duclos, in Guérin’s Mag. Zool. 1833, t. 217 (copied in Martini & Chemnitz, 
Syst. Conch.-Cab. ed. 2, Helicina, no. 48, p. 37, t. 4. figg. 16-18) °; Sow. Thes. Conch. i. 
p. 9, figg. 25, 27°, & iii. p. 288, t. 273. figg. 266-269 © (non Reeve, Conch. Icon. xix., 
Helicina, t. 17. fig. 149); Gray, Cat. Phaneropn. p. 268 ". 
* This locality is quoted as “San Agostino ” by authors: it is, no doubt, the San Agustin Languin near 
Cahabon. 
