612 SUPPLEMENT. 
28 (a). Glandina dalh. 
Glandina dalli, Pilsbry, Proc. Acad. Phil. 1899, p. 396 °. 
Near G. bellula, but of narrower form, with longer and narrower aperture ; suture simple ; also more lengthened 
than G. oblonga and not so stout as G. ambigua. 
Long. 16-20, diam. 6°2-6°3, apert. 9°5-9°8 millim. 
Hab. NE. Mexico: Diente, near Monterey (Mr. & Mrs. Rhoads '). 
Glandina aurantiaca (p. 69). 
Glandina aurantiaca, Biolley, Mol. terr. y fluv. de Costa Rica, p. 6 (1897) * 
To the locality given, add :— 
Hab. N.E. Costa Rica: Puerto Viejo, from the mouth of the river of this name to the 
Rio Sarapiqui (Biolley 2); San Miguel, on the road to the Rio Sarapiqui (Biolley). 
E. Costa Rica: Turrialba and Tuis, 500-650 metres (Biolley 2, Pittier) ; Santa Clara, 
200-500 metres (Biolley 2) ; Talamanca (Pittier). 
S.W. Costa Rica: Valley of Baca (Pittier, January 1898); Terraba (Pittier, 1891). 
Specimens received from Talamanca and Turrialba measure 29-30 millim. in length 
and 13 in diameter, the aperture 15-16 millim. 
30 (a). Glandina underwoodi. 
Glandina sp., Biolley, Mol. terr. y fluv. de Costa Rica, p. 6 (1897) °. 
Oleacina underwoodi, Fulton, Ann. & Mag. Nat. Hist. (6) xx. p. 212, t. 6. fig. 9 (1897) *. 
Near G. aurantiaca, but broader and of a uniform dark chestnut-brown colour ; suture marked by a furrow. 
Long. 21, diam. 104-11, apert. 94 millim. 
Hab. Cenrrat Costa Rica: Azahar de Cartago, 1500 metres (Biolley 1, Underwood ?). 
30 (s). Glandina chiriquiana. 
Glandina chiriquiana, S. I. Da Costa, Proc. Malac. Soc. Lond. iv. p. 66, t. 7. fig. 2 (1900) °. 
Very like G. underwoodi, but smaller and with the pillar-lip white. 
Long. 19:5, diam. 9; apert. long. 9, lat. 4°5 millim. 
Hab. S. Panama: Chiriqui?. 
Glandina speciosa (p. 71). 
Glandina (Varicella) speciosa, Pilsbry, Proc. Acad. Phil. 1891, p. 311°. 
Pilsbry’s specimens were from Orizaba (Herprin °), whence I have already recorded 
the species. 
35 (a). Glandina iheringi. 
Glandina iheringi, Pilsbry, Nautilus, xiv. p. 4 (1900) °. 
Somewhat allied to G. cordovana and G'. speciosa, biconic, striated to the base, with occasional dark chestnut 
or purplish-brown varices. 
Long. 22, diam. 124, apert. 143 millim. 
Hab. N. Guatemata: Alta Vera Paz (v. Lhering 3). 
