254 PUPILLA. 



I. Shell ovate-cylindric. 



1. Strong-shelled, but little striate, with a somewhat 

 oily gleam, larger: muscorum. 



2. Thin, pretty smooth, without luster, smaller: bigra- 

 nata. 



II. Shell regularly cylindric with blunt summit, finely, reg- 

 ularly and distinctly striate, with silky luster. 



1. Larger, with at most 2 teeth : sterri. 



2. Smaller, with three white teeth, that in the palate 

 shining through distinctly : triplicata. 



Section Gibbidinopsis Germain. 



Gibbulinopsis Germain, Bull. Museum Hist. Nat. Paris, 

 XXV, 1919, p. 265, as a subgenus of Orthogibbus, for Pupa 

 pupula, uvula and turgidula of Deshayes. — Faune Malacol. 

 terr. et fhiv. des iles Mascareignes (Miss. zool. de M. Paul 

 Carie), March, 1921, p. 23, Orthogibbus (Gibbulinopsis) 

 pupulus Deshayes, of the Island of Reunion, named as type. 



Primipupilla Pilsbry, Man. of Conch., XXVI, p. 153, 

 August 4, 1921. 



Gibbulinopsis was proposed as a subgenus of Orthogibbus 

 (which was a new name for Gibbulina of authors, not Beck, 

 with the type 0. modiolus Fer.), and placed in the family 

 "Enneidas." In 1921 Germain selected Pupa pupula Des- 

 hayes as the type, thereby unconsciously removing Gibbuli- 

 nopsis to Pupillidas. 



Primipupilla Pilsbry now becomes a synonym of Gibbuli- 

 nopsis. It was proposed before Germain 's publication of 1921 

 was received, and while I supposed that Gibbulinopsis would 

 be retained for the Streptaxid species of Germain's group, not 

 for the single Pupilla contained therein. 



The following are to be added to the list of Tertiary Pupilla; 

 in Vol. XXVI, p. 223 : 



Pupilla anodon (Desh.), which was placed with doubt in 

 Vertigo (Vol. XXV, p. 218), is considered a Pupilla by Wenz 

 (Foss. Catal., Ill, p. 952). 



Pupilla crossei (Michaud) (Vol. XXV, p. 220, as Vertigo) 

 is placed in Pupilla by Wenz. 



