300 MOLLUSCA. 
Long. 23, diam. 5 ; apert. long. 44, lat. 24 millim. ; anfr. 10 (Pfeiffer). 
1» 22°38, 5; A°7 ; ” 4'1,,, 22 ,; 29 105 (Strebel). 
» 21, 5 53 » 4, 4, 2 ” » 10 (specimen from Teapa). 
» 19, 4 433 2”? 4, 4, 2 ” »» 9% (specimen from Palmar). 
2. Subulina stolli, sp.n. (Tab. XVII. figg. 15, 15 a, 8.) 
Testa imperforata, elongate turrita, sat tenuis, costulis verticalibus tenuibus confertis sculpta, nitidula, albida, 
concolor, apice obtuso; anfr. 11, priores duo prominentiis nonnullis tuberiformibus levibus insignes, 
sequentes vix convexiusculi, sutura sat profunda, subirregulari, incrustata, ultimus basi rapide attenuatus, 
levis ; apertura oblongo-elliptica, margine externo leviter arcuato, basali brevi, columellari valde concavo, 
ad basin distincte truncato. 
Long. 24, diam. 53; apert. long. 5, diam. 34 millim. 
Last whorl, seen from the dorsal side, two-sevenths of the length of the whole shell. 
Hab. N. Guatemata: Vera Paz (Stoll). 
General form a little more conical than in S&. octona, from which it is well 
distinguished by the sculpture. ‘The species cannot be referred to any of the 
sculptured Subuline described by Fischer and Crosse from Guatemala. The 
strong protuberances on the first two whorls are very peculiar. | 
3. Subulina porrecta, sp.n. (Tab. XVII. figg. 14, 144, 6.) 
Subulina trochilea (Pir.), Fisch. & Crosse, Miss. Scient. Mex., Mollusca, i. p. 642, t. 25. figg. 14, 14a". 
Testa imperforata, cylindrico-subulata, solidula, leviter striatula, flavido-cerea, modice nitidula, concolor, apice 
globiformi; anfr. 94, superi convexiusculi, inferiores planiusculi, vix latiores quam alti, ultimus basi 
altior quam latus, basi sensim attenuatus; apertura elongato-ovata, margine columeilari vix concavo, 
versus basin peroblique truncato. 
Long. 21-25, diam. 44-5; apert. long. 43-4, diam. 2-24 millim. 
Hab. S.E. Mexico: Teapa in Tabasco (H. H. Smith). 
Yucatan }. 
Distinct from S. octona and its variety trochlea chiefly by the more slender and less 
convex form of the last whorls and the scarcely concave columellar margin. 
4, Subulina cylindrella. 
Achatina cylindrella, Morelet, Test. Noviss. ii. p. 12 (1851)*; Pfr. Monogr. Helic. Vivent. iii. 
p. 502°; Fisch. & Crosse, Miss. Scient. Mex., Mollusca, i. p. 634, t. 25. figg. 18, 13.4, d°. 
Hab. N. GuateMaLa: woods of Peten, near San Luis, rather scarce (Morelet 1°). 
Distinct from the species of Pseudosubulina by the less numerous coste, with large 
interstices, and by the form of the columellar margin, which agrees very well with that 
of S. octona. Fischer and Crosse are of opinion that the only specimen which they 
have seen (and figured) is not full-grown. 
5. Subulina (?) rangiana. 
Achatina rangiana, Ptr. P. Z. 8. 1846, p. 115°; Monogr. Helic. Vivent. ii. p. 2617; Reeve, Conch. 
Icon. v., Achatina, t. 15. fig. 65 °. 
