304 MOLLUSCA. 
5. Pseudosubulina robusta, sp. n. (Tab. XVII. fig. 19.) 
Testa imperforata, subconico-turrita, verticaliter confertim costulato-striata, nitida, flavescens ; anfr. 10, primi 2 
subglobosi, leeves, tertius subangustus, inde a quarto regulariter crescentes et: sculpti, sutura sat impressa, 
ultimus basi sensim et subconvexe attenuatus; apertura sat obliqua, oblongo-trapezoidea, margine externo 
supra arcuato, dein stricto, margine basali late rotundato, marg. columellari paulum torto, leviter incrassato, 
albido, basi leviter truncato. 
Long. 18, diam. 5; apert. long. 43, diam. 23 millim. 
Last whorl, seen from the dorsal side, one-third of the whole length. 
Hab. §.W. Mexico, Omilteme, in the State of Guerrero, at an elevation of 8000 feet 
(H. H. Smith). 
6. Pseudosubulina fortis, sp.n. (Tab. XVII. figg. 17, 17 a, 6.) 
Testa imperforata, cylindrico-turrita, distincte costulata, costulis latiusculis, interstitia subsequantibus, solidula, 
pallide griseo-flavida ; anfr. 9-94, convexiusculi, sutura profunda, crenulata, ultimus infra sensim 
angustatus, basi leviuscula ; apertura anguste oblonga, margine externo leviter arcuato, basali breviusculo, 
columellari subverticali, crasso, oblique et leviter truncato. 
Long. 13-14, diam. 4; apert. long. 4, diam. 2} millim. 
Last whorl, seen from the dorsal side, one-third of the whole length. The deep sutures are often filled with 
dirt, and thus appear dark brown. 
Hab. W. Guatemata: El Reposo (800 feet), Las Mercedes (5000 feet), and Zapote 
(Champion) ; Miramar near San Francisco and Retalhuleu (Sto//). 
7. Pseudosubulina mitescens, sp.n. (Tab. XVII. figg. 18, 184, 6.) 
Testa imperforata, subulato-turrita, costulato-striata, costulis planiusculis, interstitia latitudine superantibus, 
in anfr. antepenultimo, penultimo et ultimo deorsum odsolescentihus, diaphana, flavida, nitida ; anfr. 10, 
primus parvus, subglobosus, secundus multo major, sequentes planiusculi, sutura anguste impressa, 
crenulata, fuscescente, antepenultimus et penultimus impressionibus spirali-linearibus sparsis notati, 
ultimus basi levis, rapide angustatus; apertura anguste oblonga, margine externo leviter arcuato, basali 
breviusculo, columellari subverticali, crasso, oblique et leviter truncato. 
Long. 16, diam. 4; apert. long. 4, diam. 24 millim. 
Hab. W. Guatemala: Duefias, near Antigua, at an elevation of 5000 feet above the 
sea (Champion). 
Intermediate between P. fortis and P. lirifera—in the sculpture and the flatness of 
the coste resembling the latter, and in the shape of the aperture the former; coste 
stronger on the upper whorls and becoming very feeble in the lower parts of the last 
three whorls, this character being quite peculiar to the species. 
8. Pseudosubulina lirifera. (Tab. XVII. figg. 20, 20a, 0.) 
Achatina lirifera, Morelet, Test. Noviss. il. p. 12 (1851)’; Pfr. Monogr. Helic. Vivent. iii. 
p. BOL’. 
Subulina lirifera, Fisch. & Crosse, Miss. Scient. Mex., Mollusca, i. p. 633, t. 25. figg. 12, 12a, 6°. 
Hab. N. Guatemata: woods of Peten, near San Luis (Morelet 1-3), 
E. Guatemata: Livingston (SZo/d). 
