OTOSTOMUS. 201 
Pfeiffer’s collection described and figured by Strebel, Beitr. Mex. Land- und Siissw.- 
Conch. v. p. 75, t. 6. fig. 19, evidently belongs to the latter; therefore neither the 
name of Liebmann as collector, which is not mentioned by Pfeiffer in the first descrip- 
tion ', nor its position in the subgenus Drymaus, close to B. dunkeri (Pfeiffer, Malak. 
Blatt. 1855, p. 151), can be safely quoted for this species. 
3. Otostomus lilacinus. (Tab. XII. figg. 3-6.) 
Bulimus lilacinus, Reeve, Conch. Icon. v., Bulimus, t. 74: fig. 582 (1849) (young specimen)’ ; 
Pfr. Monogr. Helic. Vivent. iii. p. 326°. 
Bulimus (Drymeus) lilacinus, Pfr. in Malak. Blatt. ii. p. 151 (1855) °. 
Otostomus (Hamadryas) lilacinus, H. & A. Adams, Gen. Moll. ii. p. 150+. 
Bulimulus (Drymeus) lilacinus, Albers, Die Helic. ed. 2, p. 211°; Fisch. & Crosse, Miss. Scient. 
Mex., Mollusca, i. p. 479, t. 20. figg. 1, 2, t. 24. figg. 5, 5a°. 
Otostomus (Drymeus) lilacinus, v. Mart. Conch. Mittheil. ii. p. 1917. 
Bulimus patricius, Reeve, Conch. Icon. v., Bulimus, t. 81. fig. 600 (Dec. 1849) *. 
a. typica: fasciis 4-5 purpureo-fuscis, striolatis, sepius interruptis, fauce violacea, peristomate extus flavido. 
(Reeve, fig. 600 ; Fisch. & Crosse, t. 20. figg. 1, 2.) 
Hab. S.W. Guaremata: San Agustin, department of Solola (Bocourt®); same locality, 
at an elevation of 3000 feet above the sea (Séoll). 
b. undulosus: pallide violascens, strigis undulosis violaceis, fauce violacea, peristomate extus flavido. (Fig. 4.) 
Hab. W. Guatemata: Hacienda de las Nubes, Cerro Zunil, Pacific slope, 4000 feet 
(Champion). 
c. unicolor: albidus, columella sola violacea, peristomate extus flavido. (Fig. 6.) 
Bulimulus (Drymeus) lilacinus, var. 8, Fisch. & Crosse, Miss. Scient. Mex., Mollusca, i. p. 479°. 
Bulimulus delattrei, schlanke Lokalform, Stoll, Guatem. Reisen, p. 198 (1886) *. 
Hab. W. Guatamata: Cholhuitz (Stoll 1°); Cerro Zunil 4000 feet, El Reposo 1000 feet 
(Champion) ; Hacienda Buenavista and Hacienda Helvetia, in virgin forest, at an 
elevation of from 3000 to 4000 feet, descending in some localities to about 2000 
feet (Stoll); Cuesta between Antigua and Escuintla (Sto//). 
d. crossei: albidus, fasciis 3 angustioribus fuscis continuis, peristomate extus albido. 
Bulimulus (Drymeus) lilacinus, var. y, Fisch. & Crosse, loc. cit. p. 479, t. 24. figg. 5, 5a”. 
Hab. N. Guatemata: Alta Vera Paz (Sarg *’). 
e. Janson : carneo-albidus, fasciis 4 fusco-violaceis interruptis, strigisque nonnullis angustioribus, peristomate 
extus albido, fauce rosea. (Figg. 3, 3 a, 6.) 
Long. 46, diam. 22, apert. 24 millim. 
Hab. Nicaracva (Janson). 
BIOL. CENTR.-AMER., Terr. and Fluviat. Mollusca, August 1893. 26 
