EUGLANDINA. 187 



there, somewhat tapering towards the base. Golumella arcu- 

 ate, broadly truncate. Aperture subvertieal, oval, narrowed 

 above, acuminate ; peristome simple, the right margin deeply 

 sinuate above. Length 90, diam. 30, aperture 57x17 mm. 

 (Pfr.). 



Mexico: Zimapan (Davison) ; Puebla (Berkenbusch) ; Ja- 

 lapa (Smith). 



Glandina coulteri Gray, BECK, Index Moll., p. 78, no de- 

 scription. MARTS., Biologia, p. 56, pi. 2, f. 4 a-c. Oleacina 

 coulteri Gray PFR., Monogr., iv, p. 642. G. ukdeana MARTS., 

 Monatsber. Akad. Berlin 1863, p. 540. STREBEL, Beitrag, ii, 

 p. 11, pi. 4,1 6;iii, p. 7. 



The figures are from von Martens. Fig. 23 represents a 

 specimen from Jalapa; fig. 24 a very large one from Zima- 

 pan. This species was omitted from vol. I as unfigured. 

 Beck refers to a plate of Gray's Spicilegia Zoologica, which 

 seems never to have been published. 



23. E. CUNEUS (v. Martens). PI. 22, figs. 18, 19, 20, 21. 



Shell conoid-oblong, narrowly saccate, sculptured with close 

 costulse and rather distant impressed spiral lines; tawny- 

 brown, rather glossy, thin. Whorls 6 to 6 1 /, the spire rather 

 obese, the apex obtuse; suture distinctly oblique, slightly 

 crenulate. Aperture lanceolate, more or less exceeding half 

 the total length, the columellar margin arcuate (Marts.). 



Length 49, diam. 19, aperture 29x12 mm. 



Length 51, diam. 19, aperture 27x12.5 mm. 



Southwest Mexico: Omelteme, State of Guerrero (H. H. 

 Smith). 



Glandina cuneus MARTS., Biologia, p. 56, pi. 3, f. 1, 2. 



"I have figured two specimens (figs. 1, 2) because they ex- 

 hibit remarkable differences in the relative size of the visible 

 part of 'the upper whorls, the degree of obliquity in the 

 suture, and the breadth of the aperture, the one being some- 

 what more involute than the other. In all other respects their 

 specific qualities are the same. This is an interesting example 

 of the individual variation in the genus Glandina, which ren- 

 ders the precise distinction of species so difficult and uncer- 

 tain'' (Martens). 



