References for species Maso alticeps (Emerton, 1909)

Species Reference Comment Distribution
Caseola alticeps Emerton 1909: 187, pl. 2, f. 2
(PDF not available.)  (Dm). USA
Araeoncus alticeps Petrunkevitch 1929a: 522
(PDF not available.)  (Df).  
Maso alticeps Bishop & Crosby 1935c: 231, pl. 19, f. 29-32
(PDF not available.)  (m).  
Maso alticeps Kaston 1948: 145, f. 341-345
(PDF not available.)  (m; N.B.: considered a junior S of Metopobactrus prominulus (O. P.-Cambridge, 1872) by Buckle et al., 2001, 132).  
None noted here.
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