New and little known land snails of the family Spiraxidae from Central America and Mexico (Gastropoda, Pulmonata)
DOI:
https://doi.org/10.58782/flmnh.tfdu5280Abstract
Two new genera and twelve new species are described, and various taxonomic changes are proposed. EUGLANDININAE.- Euglandina, subgen. Varicoturris Pilsbry, 1907: the subgenus is redefined. Gheisbreghtia Baker, 1941 is a synonym. The type species, Spiraxis dubia Pfeiffer, 1856 is redescribed and the type specimen is refigured. The subgenus is known from the Méxican states of Veracruz and Chiapas, and from Depto. Huehuetenango, Guatemala. Two new species are described: E. (V) pycnoptyx, n. sp. from Veracruz, and E. (V) huehuetenangoensis, n. sp. from Guatemala.
Euglandina, subgen, Guillarmodia Baker, 1941: the subgenus is redefined. The type species, E. (G.) pupa Baker, 1941, is figured. The subgenus is known from lowland areas in eastern and western México and contains nine species including six newly described: E. (G.) brachystyla, n. sp., E. (G.) comma, n. sp., E. (G.) gracilior, n. sp., E. (G.) stenotrema, n. sp. and E. (G.) arthritica, n. sp. from Guerrero and E. (G.) kingi, n. sp. from Oaxaca.
Euglandina, subgenus varicoglandina Pilsbry, 1908: E. (V.) rubiginosa, n. sp. is described from Depto. Huehuetanango, Guatemala.
STREPTOSTYLINAE.- Myxastyla n. gen.; type species: Streptostyla coxeni Richards, 1938. Referred species: Myxastyla pycnota n. sp., Myxastyla hyalina n. sp. The genus occurs in north-central Guatemala., Belize, and Honduras.
SPIRAXINAE.- Mayaxis n. gen., type species: Mayaxis leei n. sp. from Honduras. Mayaxis is known from Chiapas, Guatemala, Belize, and Honduras. Referred species include: Achatina lirifera Morelet, 1851; Achatina chiapensis Pfeiffer, 1856; Pseudosubulina fortis Martens, 1898; Pseudosubulina mitescens Martens, 1898; and Pseudosubulina martensi Pilsbry, 1919.
