STREPTOSTYLA. 103 
C. Ligulate. 
[Petenia*, Crosse & Fischer. | 
The shell is smooth and shining, as in the preceding sections, rather elongated, and 
provided with a narrow dark spiral band. The foot of the animal shows at its hinder 
end a mucous-pore, a character which has not yet been found in any of the preceding 
species. 
35. Streptostyla ligulata. 
Glandina ligulata, Morelet, Test. Noviss. i. p. 12 (1849)*; Journ. de Conch. iii. p. 257, t. 10. 
fig. 8 (1852) °; Mérch, Journ. de Conch. xiii. p. 36 (1865) *. 
Achatina ligulata (Morel.), Pfr. in Martini & Chemnitz, Syst. Conch.-Cab., ed. 2, Achatina, no. 40, 
p- 821, t. 26. figg. 4, 5 *. 
Spiraxis (Glandina) ligulata (Morel.), Pfr. Monogr. Helic. Vivent. iii. p. 475°. 
Petenia ligulata (Morel.), Crosse & Fischer, Journ. de Conch. xvii. p. 35 (1869) °; Fischer & 
Crosse, Miss. Scient. Mex., Mollusca, i. p. 68, t. 1. figg. 17, 17 a”. 
Streptostyla (Glandina) ligulata (Morel.), Pfr. Monogr. Helic. Vivent. viii. p. 344°, 
Hab. EK. Mexico: Ojo de Agua near Cordova (Sallé"). 
N. Guaremaua and Centrat Curapas: woods of Peten and Palenque (Morelet }~>"). 
_ N.B.—The length of 11 millim. given by Morelet ! ? is evidently a misprint for 16, as 
is shown by the indication of the natural size in his figure 7. 
36. Streptostyla catenata. 
Spiraxis catenata, Pfr. P. Z.S. 1856, p. 378'; Malak. Blatt. iii. p. 233 (1856) *; Monogr. Helic. 
Vivent. iv. p. 579°. 
Streptostyla catenata (Pfr.), Fischer & Crosse, Miss. Scient. Mex., Mollusca, 1. p. 63 *; Strebel, 
Beitr. Mex. Land- und Siissw.-Conch. iii. p. 27, t. 12. fig. 5°. . 
Hab. Cutapas (Ghiesbreght ~°). 
Although it is not yet known whether this species is provided with a mucous-pore 
on the foot, the general resemblance to S. diguiata in the painting of the shell suggests 
that it may belong to the same subgenus. 
* Preoccupied in Pisces (Giinther, 1862). 
